{"id":2163,"date":"2025-08-22T15:08:56","date_gmt":"2025-08-22T07:08:56","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=2163"},"modified":"2025-08-22T15:35:44","modified_gmt":"2025-08-22T07:35:44","slug":"types-of-surge-protection-devices","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/id\/blog\/types-of-surge-protection-devices\/","title":{"rendered":"Berbagai Jenis Perangkat Perlindungan Surge (SPD)"},"content":{"rendered":"<h2 data-start=\"384\" data-end=\"404\">1. Pendahuluan<\/h2>\r\n<p data-start=\"405\" data-end=\"685\">Lonjakan listrik merupakan pembunuh diam-diam dalam sistem kelistrikan modern. Mulai dari perangkat elektronik perumahan hingga otomasi industri dan pembangkit listrik tenaga surya, bahkan satu tegangan berlebih saja dapat menyebabkan waktu henti, perbaikan yang mahal, atau kegagalan peralatan. Solusinya? <strong data-start=\"647\" data-end=\"683\"><span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.britecelectric.com\/id\/product-category\/ac-power-surge-protection\/\" target=\"_blank\" rel=\"noopener\">Perangkat Perlindungan Surge (SPD)<\/a><\/span>.<\/strong><\/p>\r\n<p data-start=\"687\" data-end=\"952\">Dalam panduan ini, kami akan menguraikan berbagai Jenis Perangkat Perlindungan Surge, menjelaskan cara kerjanya, dan membandingkan penerapannya. Pada akhirnya, Anda akan mengetahui dengan pasti jenis SPD mana yang sesuai dengan sistem Anda \u2014 apakah itu instalasi rumah, pusat data, atau PV.<\/p>\r\n\r\n<h2 data-start=\"959\" data-end=\"1001\">2. Apakah Perangkat Perlindungan Lonjakan Arus Itu?<\/h2>\r\n<p data-start=\"1002\" data-end=\"1283\">A <a href=\"https:\/\/www.britecelectric.com\/id\/product-category\/ac-power-surge-protection\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\"><strong data-start=\"1004\" data-end=\"1037\">Perangkat Perlindungan Surge (SPD)<\/strong> <\/span><\/a>adalah komponen pengaman yang dipasang pada sistem kelistrikan untuk membatasi tegangan lebih transien yang disebabkan oleh sambaran petir, kejadian peralihan, atau gangguan utilitas. Ia bekerja dengan mengalihkan energi lonjakan dengan aman ke bumi, melindungi peralatan yang terhubung.<\/p>\r\n<p data-start=\"1285\" data-end=\"1440\">Bayangkan SPD sebagai katup pelepas tekanan: ia tidak menghentikan terjadinya lonjakan, tetapi menyalurkan kelebihan energi dari perangkat elektronik yang sensitif.<\/p>\r\n<p data-start=\"1285\" data-end=\"1440\"><a href=\"https:\/\/www.britecelectric.com\/id\/product-category\/ac-power-surge-protection\/\" rel=\"attachment wp-att-2160\"><img class=\"alignnone wp-image-2160\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg-1024x1024.webp\" alt=\"Jenis Perangkat Perlindungan Surge\" width=\"705\" height=\"705\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"1447\" data-end=\"1486\">3. Bagaimana Cara Kerja Perlindungan Lonjakan?<\/h2>\r\n<p data-start=\"1487\" data-end=\"1734\">SPD mengandalkan komponen seperti Metal Oxide Varistors (MOVs), Gas Discharge Tubes (GDTs), dan celah percikan. Ketika tegangan melebihi ambang batas aman (Uc), SPD beralih ke mode konduksi, menahan lonjakan ke tegangan sisa yang lebih rendah (Naik).<\/p>\r\n<p data-start=\"1736\" data-end=\"1767\">Parameter utama yang perlu dipahami:<\/p>\r\n\r\n<ul data-start=\"1768\" data-end=\"2141\">\r\n \t<li data-start=\"1768\" data-end=\"1853\">\r\n<p data-start=\"1770\" data-end=\"1853\"><strong data-start=\"1770\" data-end=\"1816\">Uc (Tegangan Pengoperasian Kontinu Maksimum):<\/strong> tegangan normal yang dapat ditangani SPD.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1854\" data-end=\"1945\">\r\n<p data-start=\"1856\" data-end=\"1945\"><strong data-start=\"1856\" data-end=\"1890\">Naik (Tingkat Perlindungan Tegangan):<\/strong> menjepit tegangan yang akan \u201cdilihat\u201d oleh perangkat hilir.\u201d<\/p>\r\n<\/li>\r\n \t<li data-start=\"1946\" data-end=\"2048\">\r\n<p data-start=\"1948\" data-end=\"2048\"><strong data-start=\"1948\" data-end=\"2000\">In \/ Imax (Arus Debit Nominal dan Maksimum):<\/strong> berapa banyak arus lonjakan yang dapat diserap perangkat.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2049\" data-end=\"2141\">\r\n<p data-start=\"2051\" data-end=\"2141\"><strong data-start=\"2051\" data-end=\"2078\">Iimp (Arus Impuls):<\/strong> khusus untuk Tipe 1, mewakili bentuk gelombang sambaran petir.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<a href=\"https:\/\/www.britecelectric.com\/id\/attachment\/spd-install\/\" rel=\"attachment wp-att-2159\"><img class=\"alignnone size-full wp-image-2159\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/SPD-install.jpg\" alt=\"\" width=\"745\" height=\"609\" \/><\/a>\r\n<h2 data-start=\"486\" data-end=\"527\">4. Jenis Perangkat Perlindungan Surge<\/h2>\r\n<p data-start=\"529\" data-end=\"821\">Memahami jenis SPD adalah kunci untuk merancang perlindungan lonjakan arus berlapis. Standar internasional seperti <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"639\" data-end=\"660\">IEC 61643-11 (AC)<\/strong><\/a>, <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/26931\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"662\" data-end=\"686\">IEC 61643-31 (DC\/PV)<\/strong><\/a>, Dan <a href=\"https:\/\/www.nemasurge.org\/ul-1449-transient-voltage-surge-suppressors\/\" target=\"_blank\" rel=\"nofollow noopener\"><strong data-start=\"692\" data-end=\"719\">UL 1449 (Amerika Utara)<\/strong> <\/a>tentukan kelas yang berbeda berdasarkan bentuk gelombang uji, kemampuan energi, dan lokasi pemasangan.<\/p>\r\n<p data-start=\"823\" data-end=\"975\">Di bawah ini, kami mengelompokkan berbagai jenis perangkat perlindungan lonjakan arus (SPD) yang akan Anda temui, beserta peran teknis dan panduan penerapannya.<\/p>\r\n\r\n<h3 data-start=\"982\" data-end=\"1038\">4.1 SPD Tipe 1 (IEC 61643-11, Kelas I, 10\/350 \u00b5s)<\/h3>\r\n<ul data-start=\"1039\" data-end=\"1975\">\r\n \t<li data-start=\"1039\" data-end=\"1201\">\r\n<p data-start=\"1041\" data-end=\"1201\"><strong data-start=\"1041\" data-end=\"1056\">Definisi:<\/strong> Dirancang untuk melepaskan arus petir parsial. Diuji dengan bentuk gelombang impuls 10\/350 \u00b5s (Iimp) yang mewakili sambaran petir langsung.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1202\" data-end=\"1383\">\r\n<p data-start=\"1204\" data-end=\"1383\"><strong data-start=\"1204\" data-end=\"1227\">Titik Instalasi:<\/strong> Pintu masuk layanan, biasanya di bagian hulu dari papan distribusi utama. Sering digunakan pada bangunan yang dilengkapi dengan Sistem Proteksi Petir (LPS) eksternal.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1384\" data-end=\"1658\">\r\n<p data-start=\"1386\" data-end=\"1407\"><strong data-start=\"1386\" data-end=\"1405\">Parameter Utama:<\/strong><\/p>\r\n\r\n<ul data-start=\"1410\" data-end=\"1658\">\r\n \t<li data-start=\"1410\" data-end=\"1475\">\r\n<p data-start=\"1412\" data-end=\"1475\">Iimp (Arus Impuls): nilai kapasitas arus petir.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1478\" data-end=\"1571\">\r\n<p data-start=\"1480\" data-end=\"1571\">Uc (Tegangan Pengoperasian Berkelanjutan Maksimum): memastikan tidak ada kerusakan selama pengoperasian normal.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1574\" data-end=\"1658\">\r\n<p data-start=\"1576\" data-end=\"1658\">Naik (Tingkat Proteksi Tegangan): tegangan sisa yang dilihat oleh rangkaian hilir.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1659\" data-end=\"1731\">\r\n<p data-start=\"1661\" data-end=\"1731\"><strong data-start=\"1661\" data-end=\"1681\">Teknologi yang Digunakan:<\/strong> Celah percikan, MOV tugas berat, atau desain hibrida.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1732\" data-end=\"1862\">\r\n<p data-start=\"1734\" data-end=\"1750\"><strong data-start=\"1734\" data-end=\"1748\">Kasus Penggunaan:<\/strong><\/p>\r\n\r\n<ul data-start=\"1753\" data-end=\"1862\">\r\n \t<li data-start=\"1753\" data-end=\"1806\">\r\n<p data-start=\"1755\" data-end=\"1806\">Fasilitas industri, menara telekomunikasi, rumah sakit.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1809\" data-end=\"1862\">\r\n<p data-start=\"1811\" data-end=\"1862\">Gedung-gedung tinggi di daerah dengan kepadatan petir tinggi.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1863\" data-end=\"1975\">\r\n<p data-start=\"1865\" data-end=\"1975\"><strong data-start=\"1865\" data-end=\"1877\">Contoh:<\/strong> Pabrik dengan penangkal petir di atap akan membutuhkan SPD Tipe 1 pada pasokan utama yang masuk.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1982\" data-end=\"2037\">4.2 SPD Tipe 2 (IEC 61643-11, Kelas II, 8\/20 \u00b5s)<\/h3>\r\n<ul data-start=\"2038\" data-end=\"2824\">\r\n \t<li data-start=\"2038\" data-end=\"2167\">\r\n<p data-start=\"2040\" data-end=\"2167\"><strong data-start=\"2040\" data-end=\"2055\">Definisi:<\/strong> Menangani lonjakan peralihan dan efek petir tidak langsung. Diuji dengan bentuk gelombang arus 8\/20 \u00b5s (In, Imax).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2168\" data-end=\"2248\">\r\n<p data-start=\"2170\" data-end=\"2248\"><strong data-start=\"2170\" data-end=\"2193\">Titik Instalasi:<\/strong> Papan utama atau sub-distribusi di dalam fasilitas.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2249\" data-end=\"2496\">\r\n<p data-start=\"2251\" data-end=\"2272\"><strong data-start=\"2251\" data-end=\"2270\">Parameter Utama:<\/strong><\/p>\r\n\r\n<ul data-start=\"2275\" data-end=\"2496\">\r\n \t<li data-start=\"2275\" data-end=\"2347\">\r\n<p data-start=\"2277\" data-end=\"2347\">In (Arus Debit Nominal): ketahanan dalam beberapa lonjakan.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2350\" data-end=\"2417\">\r\n<p data-start=\"2352\" data-end=\"2417\">Imax (Arus Debit Maksimum): kemampuan lonjakan maksimum.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2420\" data-end=\"2496\">\r\n<p data-start=\"2422\" data-end=\"2496\">Atas: harus berkoordinasi dengan Tipe 1 hulu dan Tipe 3 hilir.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2497\" data-end=\"2578\">\r\n<p data-start=\"2499\" data-end=\"2578\"><strong data-start=\"2499\" data-end=\"2519\">Teknologi yang Digunakan:<\/strong> Modul berbasis MOV, sering kali dapat dipasang untuk memudahkan penggantian.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2579\" data-end=\"2716\">\r\n<p data-start=\"2581\" data-end=\"2597\"><strong data-start=\"2581\" data-end=\"2595\">Kasus Penggunaan:<\/strong><\/p>\r\n\r\n<ul data-start=\"2600\" data-end=\"2716\">\r\n \t<li data-start=\"2600\" data-end=\"2655\">\r\n<p data-start=\"2602\" data-end=\"2655\">Rumah tinggal, gedung perkantoran, toko ritel.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2658\" data-end=\"2716\">\r\n<p data-start=\"2660\" data-end=\"2716\">Perlindungan standar di area dengan risiko lonjakan sedang.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2717\" data-end=\"2824\">\r\n<p data-start=\"2719\" data-end=\"2824\"><strong data-start=\"2719\" data-end=\"2731\">Contoh:<\/strong> Kantor kecil tanpa LPS eksternal biasanya menggunakan SPD Tipe 2 di papan utama.<\/p>\r\n<\/li>\r\n<\/ul>\r\nIngin rincian rinci? Baca panduan lengkap kami: <span style=\"text-decoration: underline;\"><em><strong data-start=\"1021\" data-end=\"1147\"><a class=\"decorated-link\" href=\"https:\/\/www.britecelectric.com\/id\/blog\/what-is-a-type-2-surge-protection-device\/\" target=\"_blank\" rel=\"noopener\" data-start=\"1023\" data-end=\"1145\">Apa Itu Perangkat Perlindungan Lonjakan Tipe 2?<\/a><\/strong><\/em><\/span>\r\n<h3 data-start=\"2831\" data-end=\"2890\">4.3 SPD Tipe 3 (IEC 61643-11, Kelas III, gelombang kombo)<\/h3>\r\n<ul data-start=\"2891\" data-end=\"3555\">\r\n \t<li data-start=\"2891\" data-end=\"3022\">\r\n<p data-start=\"2893\" data-end=\"3022\"><strong data-start=\"2893\" data-end=\"2908\">Definisi:<\/strong> Perlindungan yang baik untuk peralatan terminal. Diuji dengan gelombang kombinasi (tegangan 1,2\/50 \u00b5s + arus 8\/20 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"3023\" data-end=\"3126\">\r\n<p data-start=\"3025\" data-end=\"3126\"><strong data-start=\"3025\" data-end=\"3048\">Titik Instalasi:<\/strong> Sedekat mungkin dengan perangkat yang dilindungi (stopkontak, input perangkat).<\/p>\r\n<\/li>\r\n \t<li data-start=\"3127\" data-end=\"3273\">\r\n<p data-start=\"3129\" data-end=\"3150\"><strong data-start=\"3129\" data-end=\"3148\">Parameter Utama:<\/strong><\/p>\r\n\r\n<ul data-start=\"3153\" data-end=\"3273\">\r\n \t<li data-start=\"3153\" data-end=\"3216\">\r\n<p data-start=\"3155\" data-end=\"3216\">Atas: tingkat penjepitan sangat rendah untuk melindungi beban sensitif.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3219\" data-end=\"3273\">\r\n<p data-start=\"3221\" data-end=\"3273\">Harus digunakan dalam koordinasi dengan hulu Tipe 2.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"3274\" data-end=\"3348\">\r\n<p data-start=\"3276\" data-end=\"3348\"><strong data-start=\"3276\" data-end=\"3296\">Teknologi yang Digunakan:<\/strong> MOV dikombinasikan dengan filter untuk redaman ekstra.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3349\" data-end=\"3435\">\r\n<p data-start=\"3351\" data-end=\"3367\"><strong data-start=\"3351\" data-end=\"3365\">Kasus Penggunaan:<\/strong><\/p>\r\n\r\n<ul data-start=\"3370\" data-end=\"3435\">\r\n \t<li data-start=\"3370\" data-end=\"3435\">\r\n<p data-start=\"3372\" data-end=\"3435\">Komputer, driver LED, elektronik medis, dan sistem kontrol.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"3436\" data-end=\"3555\">\r\n<p data-start=\"3438\" data-end=\"3555\"><strong data-start=\"3438\" data-end=\"3450\">Contoh:<\/strong> Mesin MRI rumah sakit memerlukan SPD Tipe 3 di dekat perangkat, yang bekerja sama dengan Tipe 2 hulu.<\/p>\r\n<\/li>\r\n<\/ul>\r\nPelajari lebih lanjut di artikel khusus kami: <span style=\"text-decoration: underline;\"><em><strong data-start=\"1474\" data-end=\"1584\"><a class=\"decorated-link\" href=\"https:\/\/www.britecelectric.com\/id\/blog\/what-is-a-type-3-surge-protector\/\" target=\"_blank\" rel=\"noopener\" data-start=\"1476\" data-end=\"1582\">Apa itu Pelindung Surge Tipe 3?<\/a><\/strong><\/em><\/span>\r\n<h3 data-start=\"3562\" data-end=\"3594\">4.4 SPD Kombinasi T1+T2<\/h3>\r\n<ul data-start=\"3595\" data-end=\"4178\">\r\n \t<li data-start=\"3595\" data-end=\"3710\">\r\n<p data-start=\"3597\" data-end=\"3710\"><strong data-start=\"3597\" data-end=\"3612\">Definisi:<\/strong> Satu unit SPD diuji untuk bentuk gelombang Kelas I (10\/350 \u00b5s) dan Kelas II (8\/20 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"3711\" data-end=\"3804\">\r\n<p data-start=\"3713\" data-end=\"3804\"><strong data-start=\"3713\" data-end=\"3725\">Keuntungan:<\/strong> Melindungi dari petir langsung serta lonjakan arus dalam satu perangkat.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3805\" data-end=\"3895\">\r\n<p data-start=\"3807\" data-end=\"3895\"><strong data-start=\"3807\" data-end=\"3830\">Titik Instalasi:<\/strong> Pintu masuk layanan ketika ruang atau anggaran membatasi beberapa perangkat.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3896\" data-end=\"4076\">\r\n<p data-start=\"3898\" data-end=\"3914\"><strong data-start=\"3898\" data-end=\"3912\">Kasus Penggunaan:<\/strong><\/p>\r\n\r\n<ul data-start=\"3917\" data-end=\"4076\">\r\n \t<li data-start=\"3917\" data-end=\"3996\">\r\n<p data-start=\"3919\" data-end=\"3996\">Bangunan komersial atau perumahan berukuran sedang membutuhkan solusi yang ringkas.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3999\" data-end=\"4076\">\r\n<p data-start=\"4001\" data-end=\"4076\">Lokasi dimana koordinasi antara Tipe 1 dan Tipe 2 yang terpisah sulit dilakukan.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4077\" data-end=\"4178\">\r\n<p data-start=\"4079\" data-end=\"4178\"><strong data-start=\"4079\" data-end=\"4091\">Contoh:<\/strong> A shopping mall's main switchboard may install a T1+T2 SPD to simplify protection.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4185\" data-end=\"4217\">4.5 SPD Kombinasi T2+T3<\/h3>\r\n<ul data-start=\"4218\" data-end=\"4676\">\r\n \t<li data-start=\"4218\" data-end=\"4299\">\r\n<p data-start=\"4220\" data-end=\"4299\"><strong data-start=\"4220\" data-end=\"4235\">Definisi:<\/strong> Perangkat hibrid diuji kinerja Kelas II dan Kelas III.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4300\" data-end=\"4374\">\r\n<p data-start=\"4302\" data-end=\"4374\"><strong data-start=\"4302\" data-end=\"4314\">Keuntungan:<\/strong> Memberikan perlindungan tingkat distribusi dan terminal.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4375\" data-end=\"4477\">\r\n<p data-start=\"4377\" data-end=\"4477\"><strong data-start=\"4377\" data-end=\"4400\">Titik Instalasi:<\/strong> Sub-panel dekat dengan beban sensitif, terutama jika panjang kabel melebihi 10 m.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4478\" data-end=\"4559\">\r\n<p data-start=\"4480\" data-end=\"4496\"><strong data-start=\"4480\" data-end=\"4494\">Kasus Penggunaan:<\/strong><\/p>\r\n\r\n<ul data-start=\"4499\" data-end=\"4559\">\r\n \t<li data-start=\"4499\" data-end=\"4559\">\r\n<p data-start=\"4501\" data-end=\"4559\">Pusat data, ruang server, lemari kontrol industri.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4560\" data-end=\"4676\">\r\n<p data-start=\"4562\" data-end=\"4676\"><strong data-start=\"4562\" data-end=\"4574\">Contoh:<\/strong> Jalur otomasi pabrik dengan kabel panjang ke PLC dapat menggunakan SPD T2+T3 di dekat panel PLC.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4683\" data-end=\"4734\">4.6 SPD Tipe 4 (UL 1449, khusus Amerika Utara)<\/h3>\r\n<ul data-start=\"4735\" data-end=\"5324\">\r\n \t<li data-start=\"4735\" data-end=\"4856\">\r\n<p data-start=\"4737\" data-end=\"4856\"><strong data-start=\"4737\" data-end=\"4762\">Definisi (UL 1449):<\/strong> Rakitan komponen tidak dimaksudkan sebagai perangkat yang berdiri sendiri tetapi diintegrasikan ke dalam peralatan OEM.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4857\" data-end=\"5012\">\r\n<p data-start=\"4859\" data-end=\"4879\"><strong data-start=\"4859\" data-end=\"4877\">Subkategori:<\/strong><\/p>\r\n\r\n<ul data-start=\"4882\" data-end=\"5012\">\r\n \t<li data-start=\"4882\" data-end=\"4965\">\r\n<p data-start=\"4884\" data-end=\"4965\">Rakitan Komponen Tipe 4 (CA): suku cadang SPD yang dikemas sebelumnya untuk pabrikan.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4968\" data-end=\"5012\">\r\n<p data-start=\"4970\" data-end=\"5012\">Komponen Tipe 5: MOV mentah atau GDT.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5013\" data-end=\"5099\">\r\n<p data-start=\"5015\" data-end=\"5099\"><strong data-start=\"5015\" data-end=\"5038\">Titik Instalasi:<\/strong> Peralatan di dalam, catu daya, atau panel yang dibuat khusus.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5100\" data-end=\"5230\">\r\n<p data-start=\"5102\" data-end=\"5118\"><strong data-start=\"5102\" data-end=\"5116\">Kasus Penggunaan:<\/strong><\/p>\r\n\r\n<ul data-start=\"5121\" data-end=\"5230\">\r\n \t<li data-start=\"5121\" data-end=\"5166\">\r\n<p data-start=\"5123\" data-end=\"5166\">OEM merancang peralatan yang dilindungi lonjakan arus.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5169\" data-end=\"5230\">\r\n<p data-start=\"5171\" data-end=\"5230\">Perlengkapan industri khusus di pasar Amerika Utara.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5231\" data-end=\"5324\">\r\n<p data-start=\"5233\" data-end=\"5324\"><strong data-start=\"5233\" data-end=\"5245\">Contoh:<\/strong> Pabrikan UPS mengintegrasikan rakitan SPD Tipe 4 ke dalam produknya.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5331\" data-end=\"5382\">4.7 SPD PV\/DC (IEC 61643-31, hingga 1500 VDC)<\/h3>\r\n<ul data-start=\"5383\" data-end=\"6082\">\r\n \t<li data-start=\"5383\" data-end=\"5474\">\r\n<p data-start=\"5385\" data-end=\"5474\"><strong data-start=\"5385\" data-end=\"5400\">Definisi:<\/strong> Perangkat perlindungan lonjakan arus yang dirancang untuk sirkuit fotovoltaik dan DC.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5475\" data-end=\"5555\">\r\n<p data-start=\"5477\" data-end=\"5555\"><strong data-start=\"5477\" data-end=\"5496\">Standar Tes:<\/strong> IEC 61643-31 menetapkan persyaratan untuk aplikasi DC.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5556\" data-end=\"5647\">\r\n<p data-start=\"5558\" data-end=\"5647\"><strong data-start=\"5558\" data-end=\"5581\">Titik Instalasi:<\/strong> Kotak penggabung susunan PV, inverter, dan papan distribusi DC.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5648\" data-end=\"5876\">\r\n<p data-start=\"5650\" data-end=\"5671\"><strong data-start=\"5650\" data-end=\"5669\">Parameter Utama:<\/strong><\/p>\r\n\r\n<ul data-start=\"5674\" data-end=\"5876\">\r\n \t<li data-start=\"5674\" data-end=\"5740\">\r\n<p data-start=\"5676\" data-end=\"5740\">Ucpv: tegangan PV kontinu terukur (600 V, 1000 V, 1500 V).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5743\" data-end=\"5796\">\r\n<p data-start=\"5745\" data-end=\"5796\">In \/ Imax : penanganan arus lonjakan pada sisi DC.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5799\" data-end=\"5876\">\r\n<p data-start=\"5801\" data-end=\"5876\">Waktu respons: harus cukup cepat untuk inverter berbasis semikonduktor.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5877\" data-end=\"5976\">\r\n<p data-start=\"5879\" data-end=\"5895\"><strong data-start=\"5879\" data-end=\"5893\">Kasus Penggunaan:<\/strong><\/p>\r\n\r\n<ul data-start=\"5898\" data-end=\"5976\">\r\n \t<li data-start=\"5898\" data-end=\"5976\">\r\n<p data-start=\"5900\" data-end=\"5976\">Pembangkit listrik tenaga surya skala utilitas, sistem PV atap, fasilitas penyimpanan baterai.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5977\" data-end=\"6082\">\r\n<p data-start=\"5979\" data-end=\"6082\"><strong data-start=\"5979\" data-end=\"5991\">Contoh:<\/strong> Dibutuhkan pembangkit listrik tenaga surya 1500 VDC <a href=\"https:\/\/www.britecelectric.com\/id\/product_category\/pv-surge-protection-type-1-type-2\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"6024\" data-end=\"6041\">SPD PV T1+T2<\/strong><\/a> pada kotak penggabung dan input inverter.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"6089\" data-end=\"6304\"><strong data-start=\"6091\" data-end=\"6115\">Kiat Pro untuk pembaca:<\/strong> Selalu gunakan a <em data-start=\"6129\" data-end=\"6153\">sistem SPD terkoordinasi<\/em>. Tipe 1 pada pintu masuk, Tipe 2 pada subpanel, dan Tipe 3 dekat dengan beban kritis. Untuk PV, tambahkan SPD DC Tipe 2 atau T1+T2 sebagaimana ditentukan oleh IEC 61643-31.<\/p>\r\n\r\n<h2 data-start=\"3151\" data-end=\"3197\">5. Perangkat SPD Tipe 1 vs Tipe 2 vs Tipe 3<\/h2>\r\n<p data-start=\"3199\" data-end=\"3436\">Jika Anda ingin mendalami lebih dalam, periksa blog khusus kami tentang topik ini di sini:<br data-start=\"3270\" data-end=\"3273\" \/><a class=\"\" href=\"https:\/\/www.britecelectric.com\/id\/blog\/difference-between-type-1-type-2-and-type-3-surge-protective-devices\/\" target=\"_blank\" rel=\"noopener\" data-start=\"3276\" data-end=\"3434\"><em><strong>Perbedaan Antara SPD Tipe 1, Tipe 2, dan Tipe 3<\/strong><\/em><\/a><\/p>\r\n<p data-start=\"3438\" data-end=\"3504\">Berikut perbandingan singkat untuk membantu Anda memilih jenis SPD yang tepat:<\/p>\r\n\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>Atribut<\/th>\r\n<th><strong>Tipe 1 SPD<\/strong><\/th>\r\n<th><strong>Tipe 2 SPD<\/strong><\/th>\r\n<th><strong>Tipe 3 SPD<\/strong><\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td><strong>Standar Teruji<\/strong><\/td>\r\n<td>IEC 61643-11 Kelas I (10\/350 \u00b5s) + UL Tipe 1\/2 dengan rating ganda<\/td>\r\n<td>IEC 61643-11 Kelas II (8\/20 \u00b5s) + UL Tipe 2<\/td>\r\n<td>IEC 61643-11 Kelas III (gelombang kombinasi) + UL Tipe 3<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Lokasi Khas<\/strong><\/td>\r\n<td>Pintu masuk layanan \/ Switchboard utama<\/td>\r\n<td>Di dalam papan distribusi\/sub-panel<\/td>\r\n<td>Dalam jarak 1 m dari beban kritis (komputer, pengemudi, peralatan medis)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Fungsi Utama<\/strong><\/td>\r\n<td>Menangani arus petir searah; melindungi pintu masuk gedung<\/td>\r\n<td>Menangani lonjakan modular dari peralihan, busur kesalahan, dll.<\/td>\r\n<td>Menekan energi sisa untuk elektronik sensitif.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Parameter Fokus<\/strong><\/td>\r\n<td>Impedansi tinggi; Uc \u2265 tegangan sistem; Koordinasi naik<\/td>\r\n<td>Di Imax, Naik berjenjang dengan SPD hulu\/hilir<\/td>\r\n<td>Sangat rendah Naik; penjepitan yang tepat untuk melindungi beban sensitif<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Catatan Instalasi<\/strong><\/td>\r\n<td>Membutuhkan kabel besar (\u226516 mm\u00b2); dapat diinstal tanpa OCPD hulu; harus dikoordinasikan dengan Tipe 2<\/td>\r\n<td>Memerlukan proteksi arus lebih hulu; kabel \u22656 mm\u00b2<\/td>\r\n<td>Sangat dekat dengan muatan; suplemen untuk hulu Tipe 2<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Kasus Penggunaan<\/strong><\/td>\r\n<td>Bangunan dengan LPS, struktur tinggi, dan zona petir tinggi<\/td>\r\n<td>Sebagian besar rumah, fasilitas komersial, dan sub-panel industri<\/td>\r\n<td>Cluster PC, rak PLC, sistem LED\/medis<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h4 data-start=\"1155\" data-end=\"1168\">Ringkasan<\/h4>\r\n<ul data-start=\"1183\" data-end=\"1421\">\r\n \t<li data-start=\"1183\" data-end=\"1258\">\r\n<p data-start=\"1185\" data-end=\"1258\"><strong data-start=\"1185\" data-end=\"1200\">Tipe 1 SPD<\/strong> menangani sambaran petir langsung berenergi tinggi (10\/350 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1259\" data-end=\"1334\">\r\n<p data-start=\"1261\" data-end=\"1334\"><strong data-start=\"1261\" data-end=\"1276\">Tipe 2 SPD<\/strong> mengurangi lonjakan peralihan dan serangan tidak langsung (8\/20 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1335\" data-end=\"1421\">\r\n<p data-start=\"1337\" data-end=\"1421\"><strong data-start=\"1337\" data-end=\"1352\">Tipe 3 SPD<\/strong> melindungi peralatan sensitif pada jarak terakhir (bentuk gelombang kombinasi).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"185\" data-end=\"253\">6. Cara Memasang dan Mengkoordinasikan Perangkat Perlindungan Surge (SPD)<\/h2>\r\n<p data-start=\"255\" data-end=\"619\">Pemasangan yang benar sama pentingnya dengan memilih Jenis Perangkat Perlindungan Surge (SPD) yang tepat. Pengkabelan yang tidak tepat atau koordinasi yang buruk dapat membahayakan tingkat perlindungan, meskipun SPD itu sendiri memenuhi standar IEC atau UL. Berdasarkan IEC 61643-11, IEC 61643-31, UL 1449, dan pedoman teknik perusahaan kami, berikut adalah praktik terbaik utama:<\/p>\r\n<p data-start=\"255\" data-end=\"619\"><a href=\"https:\/\/www.britecelectric.com\/id\/attachment\/spds-install\/\" rel=\"attachment wp-att-2167\"><img class=\"alignnone size-large wp-image-2167\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/SPDs-install-1024x726.jpg\" alt=\"\" width=\"1024\" height=\"726\" \/><\/a><\/p>\r\n\r\n<h3 data-start=\"621\" data-end=\"654\">1. Aturan Koneksi Terpendek<\/h3>\r\n<ul data-start=\"655\" data-end=\"917\">\r\n \t<li data-start=\"655\" data-end=\"789\">\r\n<p data-start=\"657\" data-end=\"789\">Jaga agar semua kabel penghubung SPD sependek dan selurus mungkin, idealnya \u2264 0,5 m (seperti yang direkomendasikan dalam manual teknis kami).<\/p>\r\n<\/li>\r\n \t<li data-start=\"790\" data-end=\"917\">\r\n<p data-start=\"792\" data-end=\"917\">Kabel panjang menimbulkan kenaikan tegangan induktif, yang meningkatkan tegangan sisa (Naik) yang terlihat oleh peralatan yang dilindungi.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"919\" data-end=\"950\">2. Ukuran Konduktor yang Benar<\/h3>\r\n<ul data-start=\"951\" data-end=\"1317\">\r\n \t<li data-start=\"951\" data-end=\"1242\">\r\n<p data-start=\"953\" data-end=\"1002\">Gunakan konduktor dengan ukuran sesuai dengan tipe SPD:<\/p>\r\n\r\n<ul data-start=\"1005\" data-end=\"1242\">\r\n \t<li data-start=\"1005\" data-end=\"1089\">\r\n<p data-start=\"1007\" data-end=\"1089\"><strong data-start=\"1007\" data-end=\"1022\">Tipe 1 SPD:<\/strong> minimal tembaga 16 mm\u00b2 (arus petir berenergi tinggi, Iimp).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1092\" data-end=\"1137\">\r\n<p data-start=\"1094\" data-end=\"1137\"><strong data-start=\"1094\" data-end=\"1109\">Tipe 2 SPD:<\/strong> tembaga minimal 6 mm\u00b2.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1140\" data-end=\"1242\">\r\n<p data-start=\"1142\" data-end=\"1242\"><strong data-start=\"1142\" data-end=\"1157\">Tipe 3 SPD:<\/strong> ikuti data pabrikan, biasanya penampangnya lebih kecil karena arus yang lebih rendah.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1243\" data-end=\"1317\">\r\n<p data-start=\"1245\" data-end=\"1317\">Selalu gunakan konduktor tembaga dengan impedansi rendah dan hindari tikungan tajam.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1319\" data-end=\"1349\">3. Ikatan Ekipotensial<\/h3>\r\n<ul data-start=\"1350\" data-end=\"1571\">\r\n \t<li data-start=\"1350\" data-end=\"1447\">\r\n<p data-start=\"1352\" data-end=\"1447\">Semua SPD harus dihubungkan ke batang pembumian utama atau sistem ikatan ekuipotensial yang sama.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1448\" data-end=\"1571\">\r\n<p data-start=\"1450\" data-end=\"1571\">Pengikatan memastikan energi lonjakan dibuang dengan aman ke tanah, menghindari perbedaan potensial yang berbahaya antar sirkuit.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1573\" data-end=\"1598\">4. Koordinasi SPD<\/h3>\r\n<ul data-start=\"1599\" data-end=\"2069\">\r\n \t<li data-start=\"1599\" data-end=\"1738\">\r\n<p data-start=\"1601\" data-end=\"1738\">Hierarki Tingkat Perlindungan Tegangan (Naik): SPD Hulu (Tipe 1) harus selalu memiliki Naik yang lebih tinggi daripada SPD hilir (Tipe 2\/3).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1739\" data-end=\"1907\">\r\n<p data-start=\"1741\" data-end=\"1907\">Aturan Jarak: Jika kabel antara SPD dan beban terlindung lebih panjang dari 10 m, pasang SPD hilir tambahan (misalnya, Tipe 3) untuk perlindungan yang lebih baik.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1908\" data-end=\"2069\">\r\n<p data-start=\"1910\" data-end=\"2069\">Koordinasi Paralel: Untuk perlindungan multi-tahap (Tipe 1 + Tipe 2 + Tipe 3), pastikan distribusi energi yang tepat sehingga tidak ada satu perangkat pun yang mengalami tekanan berlebihan.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"2071\" data-end=\"2105\">5. Perlindungan Cadangan (OCPD)<\/h3>\r\n<ul data-start=\"2106\" data-end=\"2388\">\r\n \t<li data-start=\"2106\" data-end=\"2187\">\r\n<p data-start=\"2108\" data-end=\"2187\">Selalu gunakan sekering atau pemutus arus khusus untuk melindungi SPD itu sendiri.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2188\" data-end=\"2271\">\r\n<p data-start=\"2190\" data-end=\"2271\">Panduan kami menentukan peringkat sekering cadangan tergantung pada model SPD dan Imax\/Iimp.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2272\" data-end=\"2388\">\r\n<p data-start=\"2274\" data-end=\"2388\">UL 1449 juga memerlukan perlindungan arus lebih yang tepat untuk mencegah panas berlebih atau kegagalan SPD selama kejadian ekstrem.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2395\" data-end=\"2660\"><strong data-start=\"2397\" data-end=\"2409\">Kiat Pro:<\/strong> Selalu verifikasi kepatuhan terhadap <strong data-start=\"2440\" data-end=\"2521\">IEC 61643-11 (AC SPD), IEC 61643-31 (PV\/DC SPD), <\/strong>atau UL 1449 (Amerika Utara) tergantung wilayah Anda. Pemasangan dan koordinasi yang benar memaksimalkan masa pakai SPD dan memastikan keamanan seluruh sistem kelistrikan.<\/p>\r\n\r\n<h2 data-start=\"6325\" data-end=\"6343\">7. Kesimpulan<\/h2>\r\n<p data-start=\"6344\" data-end=\"6467\">Jenis Perangkat Perlindungan Surge tidak dapat dipertukarkan \u2014 masing-masing memainkan peran unik dalam melindungi sistem kelistrikan.<\/p>\r\n\r\n<ul data-start=\"6468\" data-end=\"6720\">\r\n \t<li data-start=\"6468\" data-end=\"6524\">\r\n<p data-start=\"6470\" data-end=\"6524\"><strong data-start=\"6470\" data-end=\"6480\">Tipe 1<\/strong> perisai terhadap sambaran petir langsung.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6525\" data-end=\"6581\">\r\n<p data-start=\"6527\" data-end=\"6581\"><strong data-start=\"6527\" data-end=\"6537\">Tipe 2<\/strong> adalah pekerja keras untuk papan distribusi.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6582\" data-end=\"6638\">\r\n<p data-start=\"6584\" data-end=\"6638\"><strong data-start=\"6584\" data-end=\"6594\">Tipe 3<\/strong> melindungi perangkat elektronik Anda yang paling sensitif.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6639\" data-end=\"6720\">\r\n<p data-start=\"6641\" data-end=\"6720\"><strong data-start=\"6641\" data-end=\"6672\">Kombinasi dan SPD PV\/DC<\/strong> mencakup aplikasi khusus dan terbarukan.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"6722\" data-end=\"6892\">Dengan memahami jenis SPD, standarnya, dan aturan pemasangannya, Anda dapat merancang pertahanan berlapis yang menjamin keselamatan, meminimalkan waktu henti, dan melindungi investasi.<\/p>","protected":false},"featured_media":2160,"parent":0,"menu_order":125,"template":"","meta":{"_acf_changed":false},"blog_category":[9],"class_list":["post-2163","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-industry-news"],"acf":{"des":"Discover the different Types of Surge Protection Devices (SPDs) \u2014 Type 1, Type 2, Type 3, combo units, and PV\/DC solutions. Backed by IEC and UL standards, this guide explains how each SPD works, where to install it, and how to coordinate them for reliable protection of homes, businesses, and solar systems.","txt":"<h2 data-start=\"384\" data-end=\"404\">1. Introduction<\/h2>\r\n<p data-start=\"405\" data-end=\"685\">Power surges are silent killers in modern electrical systems. From residential electronics to industrial automation and solar plants, even a single transient overvoltage can cause downtime, costly repairs, or equipment failure. The solution? <strong data-start=\"647\" data-end=\"683\"><span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/\" target=\"_blank\" rel=\"noopener\">Surge Protection Devices (SPDs)<\/a><\/span>.<\/strong><\/p>\r\n<p data-start=\"687\" data-end=\"952\">In this guide, we\u2019ll break down the different Types of Surge Protection Devices, explain how they work, and compare their applications. By the end, you\u2019ll know exactly which SPD types fit your system \u2014 whether it\u2019s a home, data center, or PV installation.<\/p>\r\n\r\n<h2 data-start=\"959\" data-end=\"1001\">2. What Are Surge Protection Devices?<\/h2>\r\n<p data-start=\"1002\" data-end=\"1283\">A <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\"><strong data-start=\"1004\" data-end=\"1037\">Surge Protection Device (SPD)<\/strong> <\/span><\/a>is a safety component installed in an electrical system to limit transient overvoltages caused by lightning strikes, switching events, or utility disturbances. It works by diverting surge energy safely to earth, protecting connected equipment.<\/p>\r\n<p data-start=\"1285\" data-end=\"1440\">Think of an SPD as a pressure-release valve: it doesn\u2019t stop the surge from happening, but it channels the excess energy away from sensitive electronics.<\/p>\r\n<p data-start=\"1285\" data-end=\"1440\"><a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/\" rel=\"attachment wp-att-2160\"><img class=\"alignnone wp-image-2160 \" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg-1024x1024.webp\" alt=\"Types of Surge Protection Devices\" width=\"705\" height=\"705\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"1447\" data-end=\"1486\">3. How Does Surge Protection Work?<\/h2>\r\n<p data-start=\"1487\" data-end=\"1734\">SPDs rely on components such as Metal Oxide Varistors (MOVs), Gas Discharge Tubes (GDTs), and spark gaps. When voltage exceeds a safe threshold (Uc), the SPD switches into conduction mode, clamping the surge to a lower residual voltage (Up).<\/p>\r\n<p data-start=\"1736\" data-end=\"1767\">Key parameters to understand:<\/p>\r\n\r\n<ul data-start=\"1768\" data-end=\"2141\">\r\n \t<li data-start=\"1768\" data-end=\"1853\">\r\n<p data-start=\"1770\" data-end=\"1853\"><strong data-start=\"1770\" data-end=\"1816\">Uc (Maximum Continuous Operating Voltage):<\/strong> the normal voltage the SPD can handle.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1854\" data-end=\"1945\">\r\n<p data-start=\"1856\" data-end=\"1945\"><strong data-start=\"1856\" data-end=\"1890\">Up (Voltage Protection Level):<\/strong> clamping voltage that downstream devices will \u201csee.\u201d<\/p>\r\n<\/li>\r\n \t<li data-start=\"1946\" data-end=\"2048\">\r\n<p data-start=\"1948\" data-end=\"2048\"><strong data-start=\"1948\" data-end=\"2000\">In \/ Imax (Nominal &amp; Maximum Discharge Current):<\/strong> how much surge current the device can absorb.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2049\" data-end=\"2141\">\r\n<p data-start=\"2051\" data-end=\"2141\"><strong data-start=\"2051\" data-end=\"2078\">Iimp (Impulse Current):<\/strong> specific to Type 1, representing lightning strike waveforms.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<a href=\"https:\/\/www.britecelectric.com\/attachment\/spd-install\/\" rel=\"attachment wp-att-2159\"><img class=\"alignnone size-full wp-image-2159\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/SPD-install.jpg\" alt=\"\" width=\"745\" height=\"609\" \/><\/a>\r\n<h2 data-start=\"486\" data-end=\"527\">4. Types of Surge Protection Devices<\/h2>\r\n<p data-start=\"529\" data-end=\"821\">Understanding SPD types is the key to designing layered surge protection. International standards such as <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"639\" data-end=\"660\">IEC 61643-11 (AC)<\/strong><\/a>, <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/26931\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"662\" data-end=\"686\">IEC 61643-31 (DC\/PV)<\/strong><\/a>, and <a href=\"https:\/\/www.nemasurge.org\/ul-1449-transient-voltage-surge-suppressors\/\" target=\"_blank\" rel=\"nofollow noopener\"><strong data-start=\"692\" data-end=\"719\">UL 1449 (North America)<\/strong> <\/a>define different classes based on test waveforms, energy capability, and installation location.<\/p>\r\n<p data-start=\"823\" data-end=\"975\">Below, we break down the different types of surge protection devices (SPDs) you\u2019ll encounter, with their technical roles and application guidance.<\/p>\r\n\r\n<h3 data-start=\"982\" data-end=\"1038\">4.1 Type 1 SPDs (IEC 61643-11, Class I, 10\/350 \u00b5s)<\/h3>\r\n<ul data-start=\"1039\" data-end=\"1975\">\r\n \t<li data-start=\"1039\" data-end=\"1201\">\r\n<p data-start=\"1041\" data-end=\"1201\"><strong data-start=\"1041\" data-end=\"1056\">Definition:<\/strong> Designed to discharge partial lightning current. Tested with the 10\/350 \u00b5s impulse waveform (Iimp) representing a direct lightning strike.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1202\" data-end=\"1383\">\r\n<p data-start=\"1204\" data-end=\"1383\"><strong data-start=\"1204\" data-end=\"1227\">Installation Point:<\/strong> Service entrance, typically upstream of the main distribution board. Often used in buildings equipped with an external Lightning Protection System (LPS).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1384\" data-end=\"1658\">\r\n<p data-start=\"1386\" data-end=\"1407\"><strong data-start=\"1386\" data-end=\"1405\">Key Parameters:<\/strong><\/p>\r\n\r\n<ul data-start=\"1410\" data-end=\"1658\">\r\n \t<li data-start=\"1410\" data-end=\"1475\">\r\n<p data-start=\"1412\" data-end=\"1475\">Iimp (Impulse Current): rated lightning current capacity.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1478\" data-end=\"1571\">\r\n<p data-start=\"1480\" data-end=\"1571\">Uc (Maximum Continuous Operating Voltage): ensures no damage during normal operation.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1574\" data-end=\"1658\">\r\n<p data-start=\"1576\" data-end=\"1658\">Up (Voltage Protection Level): residual voltage seen by downstream circuits.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1659\" data-end=\"1731\">\r\n<p data-start=\"1661\" data-end=\"1731\"><strong data-start=\"1661\" data-end=\"1681\">Technology Used:<\/strong> Spark gaps, heavy-duty MOVs, or hybrid designs.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1732\" data-end=\"1862\">\r\n<p data-start=\"1734\" data-end=\"1750\"><strong data-start=\"1734\" data-end=\"1748\">Use Cases:<\/strong><\/p>\r\n\r\n<ul data-start=\"1753\" data-end=\"1862\">\r\n \t<li data-start=\"1753\" data-end=\"1806\">\r\n<p data-start=\"1755\" data-end=\"1806\">Industrial facilities, telecom towers, hospitals.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1809\" data-end=\"1862\">\r\n<p data-start=\"1811\" data-end=\"1862\">Tall buildings in high lightning density regions.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1863\" data-end=\"1975\">\r\n<p data-start=\"1865\" data-end=\"1975\"><strong data-start=\"1865\" data-end=\"1877\">Example:<\/strong> A factory with rooftop lightning rods will require Type 1 SPDs at the main incoming supply.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1982\" data-end=\"2037\">4.2 Type 2 SPDs (IEC 61643-11, Class II, 8\/20 \u00b5s)<\/h3>\r\n<ul data-start=\"2038\" data-end=\"2824\">\r\n \t<li data-start=\"2038\" data-end=\"2167\">\r\n<p data-start=\"2040\" data-end=\"2167\"><strong data-start=\"2040\" data-end=\"2055\">Definition:<\/strong> Handles switching surges and indirect lightning effects. Tested with 8\/20 \u00b5s current waveform (In, Imax).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2168\" data-end=\"2248\">\r\n<p data-start=\"2170\" data-end=\"2248\"><strong data-start=\"2170\" data-end=\"2193\">Installation Point:<\/strong> Main or sub-distribution boards inside the facility.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2249\" data-end=\"2496\">\r\n<p data-start=\"2251\" data-end=\"2272\"><strong data-start=\"2251\" data-end=\"2270\">Key Parameters:<\/strong><\/p>\r\n\r\n<ul data-start=\"2275\" data-end=\"2496\">\r\n \t<li data-start=\"2275\" data-end=\"2347\">\r\n<p data-start=\"2277\" data-end=\"2347\">In (Nominal Discharge Current): endurance under multiple surges.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2350\" data-end=\"2417\">\r\n<p data-start=\"2352\" data-end=\"2417\">Imax (Maximum Discharge Current): maximum surge capability.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2420\" data-end=\"2496\">\r\n<p data-start=\"2422\" data-end=\"2496\">Up: must coordinate with both upstream Type 1 and downstream Type 3.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2497\" data-end=\"2578\">\r\n<p data-start=\"2499\" data-end=\"2578\"><strong data-start=\"2499\" data-end=\"2519\">Technology Used:<\/strong> MOV-based modules, often pluggable for easy replacement.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2579\" data-end=\"2716\">\r\n<p data-start=\"2581\" data-end=\"2597\"><strong data-start=\"2581\" data-end=\"2595\">Use Cases:<\/strong><\/p>\r\n\r\n<ul data-start=\"2600\" data-end=\"2716\">\r\n \t<li data-start=\"2600\" data-end=\"2655\">\r\n<p data-start=\"2602\" data-end=\"2655\">Residential homes, office buildings, retail stores.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2658\" data-end=\"2716\">\r\n<p data-start=\"2660\" data-end=\"2716\">Standard protection in areas with moderate surge risk.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2717\" data-end=\"2824\">\r\n<p data-start=\"2719\" data-end=\"2824\"><strong data-start=\"2719\" data-end=\"2731\">Example:<\/strong> A small office without external LPS would typically use Type 2 SPDs in the main board.<\/p>\r\n<\/li>\r\n<\/ul>\r\nWant a detailed breakdown? Read our full guide: <span style=\"text-decoration: underline;\"><em><strong data-start=\"1021\" data-end=\"1147\"><a class=\"decorated-link\" href=\"https:\/\/www.britecelectric.com\/blog\/what-is-a-type-2-surge-protection-device\/\" target=\"_blank\" rel=\"noopener\" data-start=\"1023\" data-end=\"1145\">What Is a Type 2 Surge Protection Device?<\/a><\/strong><\/em><\/span>\r\n<h3 data-start=\"2831\" data-end=\"2890\">4.3 Type 3 SPDs (IEC 61643-11, Class III, combo wave)<\/h3>\r\n<ul data-start=\"2891\" data-end=\"3555\">\r\n \t<li data-start=\"2891\" data-end=\"3022\">\r\n<p data-start=\"2893\" data-end=\"3022\"><strong data-start=\"2893\" data-end=\"2908\">Definition:<\/strong> Fine protection for terminal equipment. Tested with combination wave (1.2\/50 \u00b5s voltage + 8\/20 \u00b5s current).<\/p>\r\n<\/li>\r\n \t<li data-start=\"3023\" data-end=\"3126\">\r\n<p data-start=\"3025\" data-end=\"3126\"><strong data-start=\"3025\" data-end=\"3048\">Installation Point:<\/strong> As close as possible to the protected device (socket outlet, device input).<\/p>\r\n<\/li>\r\n \t<li data-start=\"3127\" data-end=\"3273\">\r\n<p data-start=\"3129\" data-end=\"3150\"><strong data-start=\"3129\" data-end=\"3148\">Key Parameters:<\/strong><\/p>\r\n\r\n<ul data-start=\"3153\" data-end=\"3273\">\r\n \t<li data-start=\"3153\" data-end=\"3216\">\r\n<p data-start=\"3155\" data-end=\"3216\">Up: very low clamping level to protect sensitive loads.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3219\" data-end=\"3273\">\r\n<p data-start=\"3221\" data-end=\"3273\">Must be used in coordination with upstream Type 2.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"3274\" data-end=\"3348\">\r\n<p data-start=\"3276\" data-end=\"3348\"><strong data-start=\"3276\" data-end=\"3296\">Technology Used:<\/strong> MOVs combined with filters for extra attenuation.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3349\" data-end=\"3435\">\r\n<p data-start=\"3351\" data-end=\"3367\"><strong data-start=\"3351\" data-end=\"3365\">Use Cases:<\/strong><\/p>\r\n\r\n<ul data-start=\"3370\" data-end=\"3435\">\r\n \t<li data-start=\"3370\" data-end=\"3435\">\r\n<p data-start=\"3372\" data-end=\"3435\">Computers, LED drivers, medical electronics, and control systems.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"3436\" data-end=\"3555\">\r\n<p data-start=\"3438\" data-end=\"3555\"><strong data-start=\"3438\" data-end=\"3450\">Example:<\/strong> A hospital MRI machine requires Type 3 SPD near the device, working together with upstream Type 2.<\/p>\r\n<\/li>\r\n<\/ul>\r\nLearn more in our dedicated article: <span style=\"text-decoration: underline;\"><em><strong data-start=\"1474\" data-end=\"1584\"><a class=\"decorated-link\" href=\"https:\/\/www.britecelectric.com\/blog\/what-is-a-type-3-surge-protector\/\" target=\"_blank\" rel=\"noopener\" data-start=\"1476\" data-end=\"1582\">What Is a Type 3 Surge Protector?<\/a><\/strong><\/em><\/span>\r\n<h3 data-start=\"3562\" data-end=\"3594\">4.4 T1+T2 Combination SPDs<\/h3>\r\n<ul data-start=\"3595\" data-end=\"4178\">\r\n \t<li data-start=\"3595\" data-end=\"3710\">\r\n<p data-start=\"3597\" data-end=\"3710\"><strong data-start=\"3597\" data-end=\"3612\">Definition:<\/strong> A single SPD unit tested for both Class I (10\/350 \u00b5s) and Class II (8\/20 \u00b5s) waveforms.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3711\" data-end=\"3804\">\r\n<p data-start=\"3713\" data-end=\"3804\"><strong data-start=\"3713\" data-end=\"3725\">Benefit:<\/strong> Protects against direct lightning as well as switching surges in one device.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3805\" data-end=\"3895\">\r\n<p data-start=\"3807\" data-end=\"3895\"><strong data-start=\"3807\" data-end=\"3830\">Installation Point:<\/strong> Service entrance when space or budget limits multiple devices.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3896\" data-end=\"4076\">\r\n<p data-start=\"3898\" data-end=\"3914\"><strong data-start=\"3898\" data-end=\"3912\">Use Cases:<\/strong><\/p>\r\n\r\n<ul data-start=\"3917\" data-end=\"4076\">\r\n \t<li data-start=\"3917\" data-end=\"3996\">\r\n<p data-start=\"3919\" data-end=\"3996\">Medium-sized commercial or residential buildings need compact solutions.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3999\" data-end=\"4076\">\r\n<p data-start=\"4001\" data-end=\"4076\">Sites where coordination between separate Type 1 and Type 2 is difficult.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4077\" data-end=\"4178\">\r\n<p data-start=\"4079\" data-end=\"4178\"><strong data-start=\"4079\" data-end=\"4091\">Example:<\/strong> A shopping mall's main switchboard may install a T1+T2 SPD to simplify protection.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4185\" data-end=\"4217\">4.5 T2+T3 Combination SPDs<\/h3>\r\n<ul data-start=\"4218\" data-end=\"4676\">\r\n \t<li data-start=\"4218\" data-end=\"4299\">\r\n<p data-start=\"4220\" data-end=\"4299\"><strong data-start=\"4220\" data-end=\"4235\">Definition:<\/strong> Hybrid devices are tested for Class II and Class III performance.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4300\" data-end=\"4374\">\r\n<p data-start=\"4302\" data-end=\"4374\"><strong data-start=\"4302\" data-end=\"4314\">Benefit:<\/strong> Provides both distribution-level and terminal protection.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4375\" data-end=\"4477\">\r\n<p data-start=\"4377\" data-end=\"4477\"><strong data-start=\"4377\" data-end=\"4400\">Installation Point:<\/strong> Sub-panels close to sensitive loads, especially if cable runs exceed 10 m.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4478\" data-end=\"4559\">\r\n<p data-start=\"4480\" data-end=\"4496\"><strong data-start=\"4480\" data-end=\"4494\">Use Cases:<\/strong><\/p>\r\n\r\n<ul data-start=\"4499\" data-end=\"4559\">\r\n \t<li data-start=\"4499\" data-end=\"4559\">\r\n<p data-start=\"4501\" data-end=\"4559\">Data centers, server rooms, industrial control cabinets.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4560\" data-end=\"4676\">\r\n<p data-start=\"4562\" data-end=\"4676\"><strong data-start=\"4562\" data-end=\"4574\">Example:<\/strong> A factory automation line with long cable runs to PLCs can use a T2+T3 SPD near the PLC panels.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4683\" data-end=\"4734\">4.6 Type 4 SPDs (UL 1449, North America only)<\/h3>\r\n<ul data-start=\"4735\" data-end=\"5324\">\r\n \t<li data-start=\"4735\" data-end=\"4856\">\r\n<p data-start=\"4737\" data-end=\"4856\"><strong data-start=\"4737\" data-end=\"4762\">Definition (UL 1449):<\/strong> Component assemblies not intended as stand-alone devices but integrated into OEM equipment.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4857\" data-end=\"5012\">\r\n<p data-start=\"4859\" data-end=\"4879\"><strong data-start=\"4859\" data-end=\"4877\">Subcategories:<\/strong><\/p>\r\n\r\n<ul data-start=\"4882\" data-end=\"5012\">\r\n \t<li data-start=\"4882\" data-end=\"4965\">\r\n<p data-start=\"4884\" data-end=\"4965\">Type 4 Component Assemblies (CA): pre-packaged SPD parts for manufacturers.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4968\" data-end=\"5012\">\r\n<p data-start=\"4970\" data-end=\"5012\">Type 5 Components: raw MOVs or GDTs.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5013\" data-end=\"5099\">\r\n<p data-start=\"5015\" data-end=\"5099\"><strong data-start=\"5015\" data-end=\"5038\">Installation Point:<\/strong> Inside appliances, power supplies, or custom-built panels.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5100\" data-end=\"5230\">\r\n<p data-start=\"5102\" data-end=\"5118\"><strong data-start=\"5102\" data-end=\"5116\">Use Cases:<\/strong><\/p>\r\n\r\n<ul data-start=\"5121\" data-end=\"5230\">\r\n \t<li data-start=\"5121\" data-end=\"5166\">\r\n<p data-start=\"5123\" data-end=\"5166\">OEMs designing surge-protected equipment.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5169\" data-end=\"5230\">\r\n<p data-start=\"5171\" data-end=\"5230\">Specialized industrial gear in the North American market.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5231\" data-end=\"5324\">\r\n<p data-start=\"5233\" data-end=\"5324\"><strong data-start=\"5233\" data-end=\"5245\">Example:<\/strong> A UPS manufacturer integrates Type 4 SPD assemblies inside its products.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5331\" data-end=\"5382\">4.7 PV\/DC SPDs (IEC 61643-31, up to 1500 VDC)<\/h3>\r\n<ul data-start=\"5383\" data-end=\"6082\">\r\n \t<li data-start=\"5383\" data-end=\"5474\">\r\n<p data-start=\"5385\" data-end=\"5474\"><strong data-start=\"5385\" data-end=\"5400\">Definition:<\/strong> Surge protection devices designed for photovoltaic and DC circuits.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5475\" data-end=\"5555\">\r\n<p data-start=\"5477\" data-end=\"5555\"><strong data-start=\"5477\" data-end=\"5496\">Test Standards:<\/strong> IEC 61643-31 specifies requirements for DC applications.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5556\" data-end=\"5647\">\r\n<p data-start=\"5558\" data-end=\"5647\"><strong data-start=\"5558\" data-end=\"5581\">Installation Point:<\/strong> PV array combiner boxes, inverters, and DC distribution boards.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5648\" data-end=\"5876\">\r\n<p data-start=\"5650\" data-end=\"5671\"><strong data-start=\"5650\" data-end=\"5669\">Key Parameters:<\/strong><\/p>\r\n\r\n<ul data-start=\"5674\" data-end=\"5876\">\r\n \t<li data-start=\"5674\" data-end=\"5740\">\r\n<p data-start=\"5676\" data-end=\"5740\">Ucpv: rated continuous PV voltage (600 V, 1000 V, 1500 V).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5743\" data-end=\"5796\">\r\n<p data-start=\"5745\" data-end=\"5796\">In \/ Imax: surge current handling on the DC side.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5799\" data-end=\"5876\">\r\n<p data-start=\"5801\" data-end=\"5876\">Response time: must be fast enough for semiconductor-based inverters.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5877\" data-end=\"5976\">\r\n<p data-start=\"5879\" data-end=\"5895\"><strong data-start=\"5879\" data-end=\"5893\">Use Cases:<\/strong><\/p>\r\n\r\n<ul data-start=\"5898\" data-end=\"5976\">\r\n \t<li data-start=\"5898\" data-end=\"5976\">\r\n<p data-start=\"5900\" data-end=\"5976\">Utility-scale solar farms, rooftop PV systems, battery storage facilities.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5977\" data-end=\"6082\">\r\n<p data-start=\"5979\" data-end=\"6082\"><strong data-start=\"5979\" data-end=\"5991\">Example:<\/strong> A 1500 VDC solar farm will need <a href=\"https:\/\/www.britecelectric.com\/product_category\/pv-surge-protection-type-1-type-2\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"6024\" data-end=\"6041\">T1+T2 PV SPDs<\/strong><\/a> at combiner boxes and inverter inputs.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"6089\" data-end=\"6304\"><strong data-start=\"6091\" data-end=\"6115\">Pro Tip for readers:<\/strong> Always use a <em data-start=\"6129\" data-end=\"6153\">coordinated SPD system<\/em>. Type 1 at the entrance, Type 2 at sub-panels, and Type 3 close to critical loads. For PV, add Type 2 or T1+T2 DC SPDs as specified by IEC 61643-31.<\/p>\r\n\r\n<h2 data-start=\"3151\" data-end=\"3197\">5. Type 1 vs Type 2 vs Type 3 SPD Devices<\/h2>\r\n<p data-start=\"3199\" data-end=\"3436\">If you want a deeper dive, check our dedicated blog on this topic here:<br data-start=\"3270\" data-end=\"3273\" \/><a class=\"\" href=\"https:\/\/www.britecelectric.com\/blog\/difference-between-type-1-type-2-and-type-3-surge-protective-devices\/\" target=\"_blank\" rel=\"noopener\" data-start=\"3276\" data-end=\"3434\"><em><strong>Difference Between Type 1, Type 2, and Type 3 SPDs<\/strong><\/em><\/a><\/p>\r\n<p data-start=\"3438\" data-end=\"3504\">Here\u2019s a quick comparison to help you choose the right SPD type:<\/p>\r\n\r\n<table>\r\n<thead>\r\n<tr>\r\n<th>Attribute<\/th>\r\n<th><strong>Type 1 SPD<\/strong><\/th>\r\n<th><strong>Type 2 SPD<\/strong><\/th>\r\n<th><strong>Type 3 SPD<\/strong><\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr>\r\n<td><strong>Tested Standard<\/strong><\/td>\r\n<td>IEC 61643-11 Class I (10\/350 \u00b5s) + dual-rated UL Type 1\/2<\/td>\r\n<td>IEC 61643-11 Class II (8\/20 \u00b5s) + UL Type 2<\/td>\r\n<td>IEC 61643-11 Class III (combination wave) + UL Type 3<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Typical Location<\/strong><\/td>\r\n<td>Service entrance \/ Main switchboard<\/td>\r\n<td>Inside distribution boards\/sub-panels<\/td>\r\n<td>Within 1 m of critical loads (computers, drivers, medical gear)<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Primary Function<\/strong><\/td>\r\n<td>Handle direct lightning current; protect building entrance<\/td>\r\n<td>Handle modular surges from switching, fault arcs, etc.<\/td>\r\n<td>Suppress residual energy for sensitive electronics.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Parameter Focus<\/strong><\/td>\r\n<td>High impedance; Uc \u2265 system voltage; Up coordination<\/td>\r\n<td>In Imax, Up cascading with upstream\/downstream SPDs<\/td>\r\n<td>Ultra-low Up; precise clamping to protect sensitive loads<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Installation Note<\/strong><\/td>\r\n<td>Needs large wiring (\u226516 mm\u00b2); can be installed without upstream OCPD; must be coordinated with Type 2<\/td>\r\n<td>Requires upstream overcurrent protection; wiring \u22656 mm\u00b2<\/td>\r\n<td>Very close to load; supplement to upstream Type 2<\/td>\r\n<\/tr>\r\n<tr>\r\n<td><strong>Use Cases<\/strong><\/td>\r\n<td>Buildings with LPS, tall structures, and high lightning zones<\/td>\r\n<td>Most homes, commercial facilities, and industrial sub-panels<\/td>\r\n<td>PC clusters, PLC racks, LED\/medical systems<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<h4 data-start=\"1155\" data-end=\"1168\">Overview<\/h4>\r\n<ul data-start=\"1183\" data-end=\"1421\">\r\n \t<li data-start=\"1183\" data-end=\"1258\">\r\n<p data-start=\"1185\" data-end=\"1258\"><strong data-start=\"1185\" data-end=\"1200\">Type 1 SPDs<\/strong> handle high-energy, direct lightning strokes (10\/350 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1259\" data-end=\"1334\">\r\n<p data-start=\"1261\" data-end=\"1334\"><strong data-start=\"1261\" data-end=\"1276\">Type 2 SPDs<\/strong> mitigate switching surges and indirect strikes (8\/20 \u00b5s).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1335\" data-end=\"1421\">\r\n<p data-start=\"1337\" data-end=\"1421\"><strong data-start=\"1337\" data-end=\"1352\">Type 3 SPDs<\/strong> protect sensitive equipment at the last mile (combination waveform).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"185\" data-end=\"253\">6. How to Install and Coordinate Surge Protection Devices (SPD)<\/h2>\r\n<p data-start=\"255\" data-end=\"619\">Correct installation is just as critical as selecting the right Types of Surge Protection Devices (SPD). Improper wiring or poor coordination can compromise protection levels, even if the SPD itself meets IEC or UL standards. Based on IEC 61643-11, IEC 61643-31, UL 1449, and our company\u2019s engineering guidelines, here are the key best practices:<\/p>\r\n<p data-start=\"255\" data-end=\"619\"><a href=\"https:\/\/www.britecelectric.com\/attachment\/spds-install\/\" rel=\"attachment wp-att-2167\"><img class=\"alignnone size-large wp-image-2167\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/SPDs-install-1024x726.jpg\" alt=\"\" width=\"1024\" height=\"726\" \/><\/a><\/p>\r\n\r\n<h3 data-start=\"621\" data-end=\"654\">1. Shortest Connection Rule<\/h3>\r\n<ul data-start=\"655\" data-end=\"917\">\r\n \t<li data-start=\"655\" data-end=\"789\">\r\n<p data-start=\"657\" data-end=\"789\">Keep all SPD connecting leads as short and straight as possible, ideally \u2264 0.5 m (as recommended in our technical manual).<\/p>\r\n<\/li>\r\n \t<li data-start=\"790\" data-end=\"917\">\r\n<p data-start=\"792\" data-end=\"917\">Long leads introduce inductive voltage rise, which increases the residual voltage (Up) seen by the protected equipment.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"919\" data-end=\"950\">2. Correct Conductor Size<\/h3>\r\n<ul data-start=\"951\" data-end=\"1317\">\r\n \t<li data-start=\"951\" data-end=\"1242\">\r\n<p data-start=\"953\" data-end=\"1002\">Use conductors sized according to the SPD type:<\/p>\r\n\r\n<ul data-start=\"1005\" data-end=\"1242\">\r\n \t<li data-start=\"1005\" data-end=\"1089\">\r\n<p data-start=\"1007\" data-end=\"1089\"><strong data-start=\"1007\" data-end=\"1022\">Type 1 SPD:<\/strong> minimum 16 mm\u00b2 copper (high-energy lightning current, Iimp).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1092\" data-end=\"1137\">\r\n<p data-start=\"1094\" data-end=\"1137\"><strong data-start=\"1094\" data-end=\"1109\">Type 2 SPD:<\/strong> minimum 6 mm\u00b2 copper.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1140\" data-end=\"1242\">\r\n<p data-start=\"1142\" data-end=\"1242\"><strong data-start=\"1142\" data-end=\"1157\">Type 3 SPD:<\/strong> follow the manufacturer\u2019s data, typically smaller cross-sections due to lower current.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1243\" data-end=\"1317\">\r\n<p data-start=\"1245\" data-end=\"1317\">Always use copper conductors with low impedance and avoid sharp bends.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1319\" data-end=\"1349\">3. Equipotential Bonding<\/h3>\r\n<ul data-start=\"1350\" data-end=\"1571\">\r\n \t<li data-start=\"1350\" data-end=\"1447\">\r\n<p data-start=\"1352\" data-end=\"1447\">All SPDs must be connected to the same main earthing bar or equipotential bonding system.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1448\" data-end=\"1571\">\r\n<p data-start=\"1450\" data-end=\"1571\">Bonding ensures surge energy is safely discharged to ground, avoiding dangerous potential differences between circuits.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1573\" data-end=\"1598\">4. SPD Coordination<\/h3>\r\n<ul data-start=\"1599\" data-end=\"2069\">\r\n \t<li data-start=\"1599\" data-end=\"1738\">\r\n<p data-start=\"1601\" data-end=\"1738\">Voltage Protection Level (Up) Hierarchy: Upstream SPDs (Type 1) should always have a higher Up than downstream SPDs (Type 2\/3).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1739\" data-end=\"1907\">\r\n<p data-start=\"1741\" data-end=\"1907\">Distance Rule: If the cable between SPDs and protected loads is longer than 10 m, install an additional downstream SPD (e.g., Type 3) for better protection.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1908\" data-end=\"2069\">\r\n<p data-start=\"1910\" data-end=\"2069\">Parallel Coordination: For multi-stage protection (Type 1 + Type 2 + Type 3), ensure proper energy distribution so that no single device is overstressed.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"2071\" data-end=\"2105\">5. Back-Up Protection (OCPD)<\/h3>\r\n<ul data-start=\"2106\" data-end=\"2388\">\r\n \t<li data-start=\"2106\" data-end=\"2187\">\r\n<p data-start=\"2108\" data-end=\"2187\">Always use dedicated fuses or circuit breakers to protect the SPD itself.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2188\" data-end=\"2271\">\r\n<p data-start=\"2190\" data-end=\"2271\">Our manual specifies back-up fuse ratings depending on SPD model and Imax\/Iimp.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2272\" data-end=\"2388\">\r\n<p data-start=\"2274\" data-end=\"2388\">UL 1449 also requires proper overcurrent protection to prevent SPD overheating or failure during extreme events.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2395\" data-end=\"2660\"><strong data-start=\"2397\" data-end=\"2409\">Pro Tip:<\/strong> Always verify compliance with <strong data-start=\"2440\" data-end=\"2521\">IEC 61643-11 (AC SPDs), IEC 61643-31 (PV\/DC SPDs), <\/strong>or UL 1449 (North America) depending on your region. Correct installation and coordination maximize SPD lifetime and ensure safety of the entire electrical system.<\/p>\r\n\r\n<h2 data-start=\"6325\" data-end=\"6343\">7. Conclusion<\/h2>\r\n<p data-start=\"6344\" data-end=\"6467\">Types of Surge Protection Devices are not interchangeable \u2014 each plays a unique role in defending electrical systems.<\/p>\r\n\r\n<ul data-start=\"6468\" data-end=\"6720\">\r\n \t<li data-start=\"6468\" data-end=\"6524\">\r\n<p data-start=\"6470\" data-end=\"6524\"><strong data-start=\"6470\" data-end=\"6480\">Type 1<\/strong> shields against direct lightning strikes.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6525\" data-end=\"6581\">\r\n<p data-start=\"6527\" data-end=\"6581\"><strong data-start=\"6527\" data-end=\"6537\">Type 2<\/strong> is the workhorse for distribution boards.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6582\" data-end=\"6638\">\r\n<p data-start=\"6584\" data-end=\"6638\"><strong data-start=\"6584\" data-end=\"6594\">Type 3<\/strong> protects your most sensitive electronics.<\/p>\r\n<\/li>\r\n \t<li data-start=\"6639\" data-end=\"6720\">\r\n<p data-start=\"6641\" data-end=\"6720\"><strong data-start=\"6641\" data-end=\"6672\">Combinations and PV\/DC SPDs<\/strong> cover specialized and renewable applications.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"6722\" data-end=\"6892\">By understanding SPD types, their standards, and installation rules, you can design a layered defense that ensures safety, minimizes downtime, and protects investments.<\/p>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/id\/wp-json\/wp\/v2\/blog\/2163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/id\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/id\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/id\/wp-json\/wp\/v2\/media\/2160"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/id\/wp-json\/wp\/v2\/media?parent=2163"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/id\/wp-json\/wp\/v2\/blog_category?post=2163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}