{"product_id":"ac-surge-protective-device-spd-1-4-pole-275v-385v-20ka-60ka","title":"AC SPD Surge Protective Device 1–4 Pole 275V 385V 20–60KA","description":"\n\u003ch2\u003eAC Surge Protective Device (SPD) – 1 to 4 Pole | 275V \u0026amp; 385V | 20KA to 60KA\u003c\/h2\u003e\n\u003cp\u003eShield your home or commercial electrical system from lightning strikes and instantaneous voltage spikes with this robust AC Surge Protective Device (SPD). Designed to IEC\/EN 61643-1 standards, this compact DIN-rail mounted surge arrester offers fast, dependable overvoltage clamping for single-phase and three-phase power distribution systems (AC 50\/60Hz, 230\/400V). Available in Class B, C, and D protection levels with 1, 2, 3, or 4-pole configurations to suit your specific installation needs.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Protection Classes:\u003c\/strong\u003e Choose Class C (XH-C40), Class B (XH-B60), or Class D (XH-D20) depending on your application and installation zone.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Pole Selection:\u003c\/strong\u003e Available in 1P, 2P, 3P, and 4P (3P+N) configurations to cover L-PE and N-PE protection modes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Discharge Capacity:\u003c\/strong\u003e Nominal discharge current up to 30KA (8\/20μs); maximum discharge current up to 60KA depending on model.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Fast Response:\u003c\/strong\u003e Response time \u0026lt;25ns ensures transient spikes are clamped almost instantaneously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Voltage Protection Level:\u003c\/strong\u003e Voltage protection level (Up) ≤1.8KV (Class C \u0026amp; D) and ≤2.2KV (Class B).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisual Status Indicator:\u003c\/strong\u003e Green = normal operation; Red = malfunction — easy at-a-glance monitoring without removing the unit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlame-Retardant Outer Shell:\u003c\/strong\u003e Constructed from self-extinguishing, flame-retardant materials for added installation safety.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Functions reliably from -40°C to +80°C at relative humidity \u0026lt;95%, suitable for demanding environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax. Continuous Operating Voltage:\u003c\/strong\u003e Up to ~385VAC across all models.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeakage Current:\u003c\/strong\u003e ≤20μA — minimal interference with connected equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n      \u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eXH-C40 (Class C)\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eXH-B60 (Class B)\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eXH-D20 (Class D)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eMax. Continuous Operating Voltage (Uc)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e~385VAC\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e~385VAC\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e~385VAC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eNominal Discharge Current In (8\/20μs)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e20KA\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e30KA\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e20KA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eMax. Discharge Current Imax (8\/20μs)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e40KA\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e60KA\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e10KA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eVoltage Protection Level (Up)\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e≤1.8KV\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e≤2.2KV\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e≤1.8KV\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eResponse Time\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\" colspan=\"3\"\u003e\u0026lt;25ns\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eLeakage Current\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\" colspan=\"3\"\u003e≤20μA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\" colspan=\"3\"\u003e-40°C to +80°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eRelative Humidity\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\" colspan=\"3\"\u003e\u0026lt;95%\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eProtection Mode\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\" colspan=\"3\"\u003eL-PE, N-PE (1P, 2P, 3P, 3P+N)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eStandard\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\" colspan=\"3\"\u003eIEC\/EN 61643-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eOuter Shell Material\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ccc;padding:8px;\" colspan=\"3\"\u003eFlame-retardant plastic\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eResidential homes and apartment distribution boards\u003c\/li\u003e\n  \u003cli\u003eCommercial and light industrial electrical panels\u003c\/li\u003e\n  \u003cli\u003eSingle-phase and three-phase power control systems\u003c\/li\u003e\n  \u003cli\u003eProtecting sensitive electronics, appliances, and equipment from transient overvoltage\u003c\/li\u003e\n  \u003cli\u003eAreas prone to lightning activity or frequent grid-switching transients\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between Class B, Class C, and Class D surge protective devices?\u003c\/h4\u003e\n\u003cp\u003eA: Class B (XH-B60) SPDs are designed for the main incoming service entrance and can handle the highest surge energies (up to 60KA max discharge). Class C (XH-C40) devices are suited for sub-distribution boards, handling surges up to 40KA. Class D (XH-D20) SPDs are installed close to sensitive equipment at the point of use, providing fine-level protection at up to 10KA. Using all three in sequence creates a layered overvoltage protection strategy for maximum equipment safety.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this SPD be used on both single-phase and three-phase systems?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This surge protective device supports electric ratings of 230V (single-phase) and 400V (three-phase) at AC 50\/60Hz. Simply select the appropriate pole count — 1P or 2P for single-phase applications, and 3P or 4P (3P+N) for three-phase power systems.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I know if the SPD has activated or needs replacing?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in visual status indicator makes it easy. A \u003cstrong\u003egreen\u003c\/strong\u003e indicator light means the device is functioning normally. A \u003cstrong\u003ered\u003c\/strong\u003e indicator light signals a malfunction or end-of-life condition, letting you know it's time to replace the unit for continued overvoltage protection.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this surge protective device fit standard DIN rail panels?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This compact SPD is designed for standard DIN rail installation, making it easy to integrate into residential, commercial, or light industrial electrical distribution panels without any special mounting hardware.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between Class B, Class C, and Class D surge protective devices?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Class B (XH-B60) SPDs are designed for the main incoming service entrance and can handle the highest surge energies (up to 60KA max discharge). Class C (XH-C40) devices are suited for sub-distribution boards, handling surges up to 40KA. Class D (XH-D20) SPDs are installed close to sensitive equipment at the point of use, providing fine-level protection at up to 10KA. Using all three in sequence creates a layered overvoltage protection strategy for maximum equipment safety.\"}}, {\"@type\": \"Question\", \"name\": \"Can this SPD be used on both single-phase and three-phase systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. This surge protective device supports electric ratings of 230V (single-phase) and 400V (three-phase) at AC 50\/60Hz. Simply select the appropriate pole count — 1P or 2P for single-phase applications, and 3P or 4P (3P+N) for three-phase power systems.\"}}, {\"@type\": \"Question\", \"name\": \"How do I know if the SPD has activated or needs replacing?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The built-in visual status indicator makes it easy. A green indicator light means the device is functioning normally. A red indicator light signals a malfunction or end-of-life condition, letting you know it's time to replace the unit for continued overvoltage protection.\"}}, {\"@type\": \"Question\", \"name\": \"Does this surge protective device fit standard DIN rail panels?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. This compact SPD is designed for standard DIN rail installation, making it easy to integrate into residential, commercial, or light industrial electrical distribution panels without any special mounting hardware.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"AC SPD Surge Protective Device 1–4 Pole 275V 385V 20–60KA\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/ac-surge-protective-device-spd-1-4-pole-275v-385v-20ka-60ka\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"20-40KA \/ 2P","offer_id":44167902134359,"sku":"125:151#2P;567:200003391#20-40KA","price":35.89,"currency_code":"USD","in_stock":true},{"title":"20-40KA \/ 3P","offer_id":44167902167127,"sku":"125:152#3P;567:200003391#20-40KA","price":40.5,"currency_code":"USD","in_stock":true},{"title":"20-40KA \/ 1P","offer_id":44167902199895,"sku":"125:150#1P;567:200003391#20-40KA","price":26.44,"currency_code":"USD","in_stock":true},{"title":"30-60A \/ 2P","offer_id":44167902232663,"sku":"125:151#2P;567:200003392#30-60A","price":35.89,"currency_code":"USD","in_stock":true},{"title":"30-60A \/ 3P","offer_id":44167902265431,"sku":"125:152#3P;567:200003392#30-60A","price":40.5,"currency_code":"USD","in_stock":true},{"title":"20-40KA \/ 4P","offer_id":44167902298199,"sku":"125:153#4P;567:200003391#20-40KA","price":50.12,"currency_code":"USD","in_stock":true},{"title":"30-60A \/ 1P","offer_id":44167902330967,"sku":"125:150#1P;567:200003392#30-60A","price":26.44,"currency_code":"USD","in_stock":true},{"title":"30-60A \/ 4P","offer_id":44167902363735,"sku":"125:153#4P;567:200003392#30-60A","price":50.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/Se266db3e8b794ca38909763ca2a19e22t.webp?v=1786764576","url":"https:\/\/axlcustomersupport.com\/products\/ac-surge-protective-device-spd-1-4-pole-275v-385v-20ka-60ka","provider":"Axl","version":"1.0","type":"link"}