{"product_id":"1-pole-1p-6a-dc-miniature-circuit-breaker-250v-dc-10ka","title":"1-Pole (1P) 40A DC Miniature Circuit Breaker — 250V DC, 6kA","description":"\u003c!-- Open Graph --\u003e\u003c!-- JSON-LD Product Schema --\u003e\n\n\u003cstyle\u003e body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.55;margin:0;color:#111} header{padding:28px 20px;border-bottom:1px solid #eee} h1{margin:.2em 0 .3em;font-size:clamp(26px,4vw,38px)} main{max-width:1080px;margin:0 auto;padding:24px 20px 64px} table{width:100%;border-collapse:collapse;margin:12px 0} th,td{border:1px solid #ececec;padding:10px 12px;text-align:left;font-size:14.5px;vertical-align:top} th{background:#fafafa} .muted{color:#666} \u003c\/style\u003e\n\u003cmain\u003e\n\u003csection id=\"overview\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eGDDC5-63 1-Pole 40A DC Miniature Circuit Breaker (MCB)\u003c\/strong\u003e is engineered for precise overload and short-circuit protection in single-pole DC circuits up to \u003cstrong\u003e250V DC\u003c\/strong\u003e. This \u003cstrong\u003e40A\u003c\/strong\u003e model is ideal for higher-current branch protection in photovoltaic arrays, battery energy storage systems, telecom DC distribution, and industrial DC control panels. Compact at just \u003cstrong\u003e18 mm wide\u003c\/strong\u003e, it supports infrequent manual switching under normal conditions and features a front \u003cstrong\u003econtact position indicator\u003c\/strong\u003e for quick operational status checks. For higher voltage or multi-pole applications, matching \u003cstrong\u003e2P (500V DC)\u003c\/strong\u003e and \u003cstrong\u003e4P (1000V DC)\u003c\/strong\u003e versions are available.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection id=\"electrical\"\u003e\n\u003ch2\u003eElectrical Features\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePoles\u003c\/th\u003e\n\u003ctd\u003e1P (single-pole) — optional: 2P \/ 4P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated current (In)\u003c\/th\u003e\n\u003ctd\u003e40 A (this model) — also available: 6, 10, 16, 20, 32, 50, 63 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated voltage (Ue)\u003c\/th\u003e\n\u003ctd\u003e250 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInsulation voltage (Ui)\u003c\/th\u003e\n\u003ctd\u003e1000 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreaking capacity (Icu)\u003c\/th\u003e\n\u003ctd\u003e6 kA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpulse withstand (Uimp)\u003c\/th\u003e\n\u003ctd\u003e6 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDielectric test\u003c\/th\u003e\n\u003ctd\u003e2 kV for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTrip characteristics\u003c\/th\u003e\n\u003ctd\u003eThermal-magnetic • B \/ C \/ D curves (resistive to inrush-heavy loads)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAuxiliary frequency\u003c\/th\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection\u003c\/th\u003e\n\u003ctd\u003eIP20 (finger-safe), contact position indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eService life\u003c\/th\u003e\n\u003ctd\u003eElectrical up to 8,000 ops • Mechanical up to 10,000 ops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection id=\"mechanical\"\u003e\n\u003ch2\u003eMechanical \u0026amp; Installation\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003e35 mm DIN-rail (EN60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWiring\u003c\/th\u003e\n\u003ctd\u003eCable \/ U-type busbar \/ Pin-type busbar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax conductor size\u003c\/th\u003e\n\u003ctd\u003eUp to 25 mm² copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTerminal torque\u003c\/th\u003e\n\u003ctd\u003e2.5 Nm (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmbient operating range\u003c\/th\u003e\n\u003ctd\u003e−40 °C to +70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage temperature\u003c\/th\u003e\n\u003ctd\u003e−25 °C to +70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection id=\"dimensions\"\u003e\n\u003ch2\u003eDimensions (mm)\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003cth\u003eDepth\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1-Pole (1P)\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e82\u003c\/td\u003e\n\u003ctd\u003e~70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-Pole (2P)\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003e82\u003c\/td\u003e\n\u003ctd\u003e~70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4-Pole (4P)\u003c\/td\u003e\n\u003ctd\u003e72\u003c\/td\u003e\n\u003ctd\u003e82\u003c\/td\u003e\n\u003ctd\u003e~70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection id=\"applications\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePV string and combiner-box protection (250V DC, 1P)\u003c\/li\u003e\n\u003cli\u003eBattery energy storage (BESS) branch circuits\u003c\/li\u003e\n\u003cli\u003eTelecom \u0026amp; networking DC distribution\u003c\/li\u003e\n\u003cli\u003eIndustrial control cabinets and DC drives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection id=\"why\"\u003e\n\u003ch2\u003eWhy Conversions Tech\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRobust \u003cstrong\u003e6kA\u003c\/strong\u003e fault clearing for DC systems\u003c\/li\u003e\n\u003cli\u003eCompact 18 mm footprint for space-limited panels\u003c\/li\u003e\n\u003cli\u003eCurve options (B\/C\/D) to match load profiles\u003c\/li\u003e\n\u003cli\u003eCompliant with \u003cstrong\u003eIEC\/EN60947-2\u003c\/strong\u003e for global safety standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e","brand":"Conversions Tech","offers":[{"title":"Default Title","offer_id":47017910534196,"sku":"CTDC5-6340","price":7.58,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0291\/8445\/8804\/files\/1-pole-1p-6a-dc-miniature-circuit-breaker-250v-dc-6ka-1184008688.jpg?v=1754941554","url":"https:\/\/conversionstech.com\/products\/1-pole-1p-6a-dc-miniature-circuit-breaker-250v-dc-10ka","provider":"Conversions Tech","version":"1.0","type":"link"}