{"product_id":"eaton-cutler-hammer-mdlb3800t36w-800a-3-pole-molded-case-circuit-breaker-bolt-on-600vac","title":"Eaton Cutler Hammer MDLB3800T36W 800A 3-Pole Molded Case Circuit Breaker – Bolt-On – 600VAC","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:e591465e-30c5-49e5-bf32-82f66efbc03e-135\" data-testid=\"conversation-turn-74\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"76adc6d6-7e6b-4605-9f6e-5fdccecd279a\" dir=\"auto\" data-message-model-slug=\"gpt-5-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"140\" data-end=\"566\"\u003eThe \u003cstrong data-start=\"144\" data-end=\"180\"\u003eEaton Cutler-Hammer MDLB3800T36W\u003c\/strong\u003e is a high-performance molded case circuit breaker with the \u003cstrong data-start=\"240\" data-end=\"260\"\u003eMDLB frame style\u003c\/strong\u003e, designed for \u003cstrong data-start=\"275\" data-end=\"336\"\u003eindustrial and commercial electrical distribution systems\u003c\/strong\u003e. This model features an \u003cstrong data-start=\"361\" data-end=\"452\"\u003eLSIG (Long-Time, Short-Time, Instantaneous, Ground Fault) non-interchangeable trip unit\u003c\/strong\u003e, providing comprehensive protection against overloads, short circuits, instantaneous faults, and ground faults.\u003c\/p\u003e\n\u003cp data-start=\"568\" data-end=\"858\"\u003eWith a \u003cstrong data-start=\"575\" data-end=\"616\"\u003emaximum rating of 800 amperes at 40°C\u003c\/strong\u003e, a \u003cstrong data-start=\"620\" data-end=\"644\"\u003e3-pole configuration\u003c\/strong\u003e, and suitability for \u003cstrong data-start=\"666\" data-end=\"682\"\u003ereverse feed\u003c\/strong\u003e, it ensures reliable protection and flexibility for various installation scenarios. The breaker is \u003cstrong data-start=\"782\" data-end=\"798\"\u003ebolt-on type\u003c\/strong\u003e for secure installation in compatible panels or switchgear.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"865\" data-end=\"880\"\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"883\" data-end=\"997\"\u003eLSIG trip unit for full protection: \u003cstrong data-start=\"919\" data-end=\"995\"\u003eLong Delay (L), Short Delay (S), Instantaneous (I), and Ground Fault (G)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1000\" data-end=\"1046\"\u003eAdjustable long delay pickup via rating plug\u003c\/li\u003e\n\u003cli data-start=\"1049\" data-end=\"1115\"\u003eAdjustable short delay pickup: \u003cstrong data-start=\"1080\" data-end=\"1113\"\u003eI²t response or flat response\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1118\" data-end=\"1189\"\u003eInstantaneous pickup by configuring short time delay to instantaneous\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1248\"\u003eAdjustable ground fault pickup with configurable delay\u003c\/li\u003e\n\u003cli data-start=\"1251\" data-end=\"1330\"\u003eRated for high interrupting capacities at various voltages for industrial use\u003c\/li\u003e\n\u003cli data-start=\"1333\" data-end=\"1377\"\u003eSuitable for \u003cstrong data-start=\"1346\" data-end=\"1375\"\u003ereverse feed applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"xggplx\" data-start=\"1384\" data-end=\"1412\"\u003eElectrical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"1415\" data-end=\"1448\"\u003e\n\u003cstrong data-start=\"1415\" data-end=\"1438\"\u003eMaximum AC Voltage:\u003c\/strong\u003e 600 VAC\u003c\/li\u003e\n\u003cli data-start=\"1451\" data-end=\"1478\"\u003e\u003cstrong data-start=\"1451\" data-end=\"1476\"\u003eInterrupting Ratings:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"list-style-type: none;\"\u003e\n\u003cul\u003e\n\u003cli data-start=\"1483\" data-end=\"1500\"\u003e65 kA @ 240 VAC\u003c\/li\u003e\n\u003cli data-start=\"1505\" data-end=\"1522\"\u003e50 kA @ 480 VAC\u003c\/li\u003e\n\u003cli data-start=\"1527\" data-end=\"1544\"\u003e25 kA @ 600 VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1547\" data-end=\"1617\"\u003e\n\u003cstrong data-start=\"1547\" data-end=\"1564\"\u003eTrip Setting:\u003c\/strong\u003e Adjustable 5–10 times the continuous ampere rating\u003c\/li\u003e\n\u003cli data-start=\"1620\" data-end=\"1666\"\u003e\n\u003cstrong data-start=\"1620\" data-end=\"1651\"\u003eMaximum Continuous Current:\u003c\/strong\u003e 800A at 40°C\u003c\/li\u003e\n\u003cli data-start=\"1669\" data-end=\"1683\"\u003e\n\u003cstrong data-start=\"1669\" data-end=\"1679\"\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1xlrs6g\" data-start=\"1690\" data-end=\"1719\"\u003eMechanical \u0026amp; General Specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"1722\" data-end=\"1763\"\u003e\n\u003cstrong data-start=\"1722\" data-end=\"1739\"\u003eManufacturer:\u003c\/strong\u003e Eaton \/ Cutler-Hammer\u003c\/li\u003e\n\u003cli data-start=\"1766\" data-end=\"1788\"\u003e\n\u003cstrong data-start=\"1766\" data-end=\"1781\"\u003eFrame Type:\u003c\/strong\u003e MDLB\u003c\/li\u003e\n\u003cli data-start=\"1791\" data-end=\"1819\"\u003e\n\u003cstrong data-start=\"1791\" data-end=\"1809\"\u003eMounting Type:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003cli data-start=\"1822\" data-end=\"1874\"\u003e\n\u003cstrong data-start=\"1822\" data-end=\"1844\"\u003eStandard Lug Type:\u003c\/strong\u003e Not included \/ configurable\u003c\/li\u003e\n\u003cli data-start=\"1877\" data-end=\"1899\"\u003e\n\u003cstrong data-start=\"1877\" data-end=\"1890\"\u003eWarranty:\u003c\/strong\u003e 1 Year\u003c\/li\u003e\n\u003cli data-start=\"1902\" data-end=\"1970\"\u003e\n\u003cstrong data-start=\"1902\" data-end=\"1920\"\u003eConfiguration:\u003c\/strong\u003e Molded Case Circuit Breaker with LSIG Trip Unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"9ghvog\" data-start=\"1977\" data-end=\"1995\"\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"1998\" data-end=\"2168\"\u003e\n\u003cstrong data-start=\"1998\" data-end=\"2023\"\u003eRating Plug Required:\u003c\/strong\u003e This unit \u003cstrong data-start=\"2034\" data-end=\"2071\"\u003erequires a rating plug to operate\u003c\/strong\u003e; it is not included. Check availability and pricing before ordering if you need one installed.\u003c\/li\u003e\n\u003cli data-start=\"2171\" data-end=\"2358\"\u003e\n\u003cstrong data-start=\"2171\" data-end=\"2198\"\u003eAccessory Installation:\u003c\/strong\u003e Accessories ordered with the breaker can be installed \u003cstrong data-start=\"2253\" data-end=\"2278\"\u003eat no additional cost\u003c\/strong\u003e. Include configuration requirements in the order comment box during checkout.\u003c\/li\u003e\n\u003cli data-start=\"2361\" data-end=\"2413\"\u003eProduct image is for identification purposes only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2415\" data-end=\"2610\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThis breaker is ideal for systems demanding \u003cstrong data-start=\"2459\" data-end=\"2495\"\u003efull-range adjustable protection\u003c\/strong\u003e, including overload, short-time, instantaneous, and ground fault protection in heavy-duty industrial environments\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Eaton Cutler-Hammer","offers":[{"title":"Certified Reconditioned","offer_id":47492393173241,"sku":"MDLB3800T36W-CR","price":4999.0,"currency_code":"USD","in_stock":true},{"title":"New Surplus","offer_id":47492393206009,"sku":"MDLB3800T36W-NS","price":6999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/MDLB3800LSIG.webp?v=1773077633","url":"https:\/\/mycircuitbreakers.com\/products\/eaton-cutler-hammer-mdlb3800t36w-800a-3-pole-molded-case-circuit-breaker-bolt-on-600vac","provider":"My Circuit Breakers","version":"1.0","type":"link"}