{"product_id":"eaton-cutler-hammer-e2m3800mnwu66-800a-3-pole-molded-case-mining-circuit-breaker-bolt-on-600vac","title":"Eaton Cutler Hammer E2M3800MNWU66 800A 3 Pole Molded Case Mining Circuit Breaker – Bolt On – 600VAC","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:1a59adb1-7f38-4b4c-b06a-37ebd6337a73-13\" data-is-intersecting=\"true\"\u003e\n\u003csection 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 R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:1a59adb1-7f38-4b4c-b06a-37ebd6337a73-13\" data-testid=\"conversation-turn-28\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\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\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"2527aa0c-7f7d-4c74-88e0-0246b4b81263\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\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=\"145\" data-end=\"885\"\u003eThe Eaton Cutler Hammer E2M3800MNWU66 is a heavy-duty molded case mining circuit breaker designed for industrial and mining power distribution systems requiring reliable protection and control. Rated at 800 amps with a 3-pole configuration, it features an interchangeable magnetic-only trip unit that provides instantaneous short-circuit protection, typically used in systems where external overload protection is implemented separately. The integrated U66 option adds a 120 VAC undervoltage release with LED indication, enhancing system safety by automatically tripping the breaker during low-voltage conditions. Built with a rugged molded case and bolt-on mounting design, this breaker is suitable for demanding environments up to 600VAC.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1wc2bmo\" data-start=\"887\" data-end=\"914\"\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul data-start=\"915\" data-end=\"1309\"\u003e\n\u003cli data-section-id=\"el4ink\" data-start=\"915\" data-end=\"947\"\u003eBrand: Eaton \/ Cutler Hammer\u003c\/li\u003e\n\u003cli data-section-id=\"mhenke\" data-start=\"948\" data-end=\"979\"\u003eModel Number: E2M3800MNWU66\u003c\/li\u003e\n\u003cli data-section-id=\"1plmm2m\" data-start=\"980\" data-end=\"1001\"\u003eAmperage: 800 Amp\u003c\/li\u003e\n\u003cli data-section-id=\"1mjvejc\" data-start=\"1002\" data-end=\"1029\"\u003eNumber of Poles: 3 Pole\u003c\/li\u003e\n\u003cli data-section-id=\"1uagnpo\" data-start=\"1030\" data-end=\"1082\"\u003eBreaker Type: Molded Case Mining Circuit Breaker\u003c\/li\u003e\n\u003cli data-section-id=\"4edz77\" data-start=\"1083\" data-end=\"1106\"\u003eMount Type: Bolt On\u003c\/li\u003e\n\u003cli data-section-id=\"1sd9s71\" data-start=\"1107\" data-end=\"1137\"\u003eFrame Style: E2M \/ M Frame\u003c\/li\u003e\n\u003cli data-section-id=\"1p90ro1\" data-start=\"1138\" data-end=\"1187\"\u003eTrip Unit Type: Interchangeable Magnetic Only\u003c\/li\u003e\n\u003cli data-section-id=\"1gofju0\" data-start=\"1188\" data-end=\"1211\"\u003eFrequency: 50\/60 Hz\u003c\/li\u003e\n\u003cli data-section-id=\"17p3qjk\" data-start=\"1212\" data-end=\"1259\"\u003eConfiguration: U66 Factory Installed Option\u003c\/li\u003e\n\u003cli data-section-id=\"1p6vay7\" data-start=\"1260\" data-end=\"1309\"\u003eStandard Lug Type: Without Terminals Standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"58xi60\" data-start=\"1311\" data-end=\"1340\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul data-start=\"1341\" data-end=\"1836\"\u003e\n\u003cli data-section-id=\"7esy2i\" data-start=\"1341\" data-end=\"1411\"\u003eMagnetic-only trip unit for instantaneous short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"b88m8f\" data-start=\"1412\" data-end=\"1475\"\u003eRequires external overload protection in application design\u003c\/li\u003e\n\u003cli data-section-id=\"13vkgeb\" data-start=\"1476\" data-end=\"1554\"\u003eHeavy-duty molded case construction for mining and industrial environments\u003c\/li\u003e\n\u003cli data-section-id=\"1cyv624\" data-start=\"1555\" data-end=\"1599\"\u003eBolt-on mounting for secure installation\u003c\/li\u003e\n\u003cli data-section-id=\"uppc6r\" data-start=\"1600\" data-end=\"1638\"\u003eOperating temperature rating: 40°C\u003c\/li\u003e\n\u003cli data-section-id=\"4trdf4\" data-start=\"1639\" data-end=\"1674\"\u003eTrip Setting Range: 1500 – 3000\u003c\/li\u003e\n\u003cli data-section-id=\"1e4fein\" data-start=\"1675\" data-end=\"1734\"\u003eU66 Option Includes: 120 VAC Undervoltage Release (UVR)\u003c\/li\u003e\n\u003cli data-section-id=\"1311xr2\" data-start=\"1735\" data-end=\"1765\"\u003eU66 Includes LED Indicator\u003c\/li\u003e\n\u003cli data-section-id=\"c26ixe\" data-start=\"1766\" data-end=\"1810\"\u003eU66 Mounting Position: Left Pole Mounted\u003c\/li\u003e\n\u003cli data-section-id=\"7w9j7z\" data-start=\"1811\" data-end=\"1836\"\u003eU66 Wiring Exit: Rear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"11flra0\" data-start=\"1838\" data-end=\"1862\"\u003eVoltage and Ratings\u003c\/h2\u003e\n\u003cul data-start=\"1863\" data-end=\"2155\"\u003e\n\u003cli data-section-id=\"xbwqhm\" data-start=\"1863\" data-end=\"1891\"\u003eMaximum Voltage: 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1i0mvqx\" data-start=\"1892\" data-end=\"1918\"\u003eRated Current: 800 Amp\u003c\/li\u003e\n\u003cli data-section-id=\"18sr2bu\" data-start=\"1919\" data-end=\"1960\"\u003eInterrupting Capacity: 65 kA @ 240VAC\u003c\/li\u003e\n\u003cli data-section-id=\"rjdg8f\" data-start=\"1961\" data-end=\"2007\"\u003eInterrupting Capacity: 35 \/ 50 kA @ 480VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1a6zbta\" data-start=\"2008\" data-end=\"2049\"\u003eInterrupting Capacity: 25 kA @ 600VAC\u003c\/li\u003e\n\u003cli data-section-id=\"5j6pm5\" data-start=\"2050\" data-end=\"2091\"\u003eInterrupting Capacity: 22 kA @ 250VDC\u003c\/li\u003e\n\u003cli data-section-id=\"1ky5wq7\" data-start=\"2092\" data-end=\"2122\"\u003eFrequency Rating: 50\/60 Hz\u003c\/li\u003e\n\u003cli data-section-id=\"1gu0bwh\" data-start=\"2123\" data-end=\"2155\"\u003eUVR Control Voltage: 120 VAC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"165x1by\" data-start=\"2157\" data-end=\"2174\"\u003eProduct Data\u003c\/h2\u003e\n\u003cul data-start=\"2175\" data-end=\"2618\"\u003e\n\u003cli data-section-id=\"10m8uyp\" data-start=\"2175\" data-end=\"2245\"\u003eCondition: New \/ Surplus \/ Reconditioned (subject to availability)\u003c\/li\u003e\n\u003cli data-section-id=\"1pruqjc\" data-start=\"2246\" data-end=\"2266\"\u003eWarranty: 1 Year\u003c\/li\u003e\n\u003cli data-section-id=\"ef7yl1\" data-start=\"2267\" data-end=\"2315\"\u003eProduct Category: Industrial Circuit Breaker\u003c\/li\u003e\n\u003cli data-section-id=\"1arsgfy\" data-start=\"2316\" data-end=\"2436\"\u003eSuitable Applications: Mining Systems, Industrial Distribution Panels, Motor Protection Circuits, Heavy-Duty Feeders\u003c\/li\u003e\n\u003cli data-section-id=\"11205e6\" data-start=\"2437\" data-end=\"2478\"\u003eManufacturer Series: Eaton E2M Series\u003c\/li\u003e\n\u003cli data-section-id=\"o0hedk\" data-start=\"2479\" data-end=\"2507\"\u003eConnection Type: Bolt On\u003c\/li\u003e\n\u003cli data-section-id=\"110fk5r\" data-start=\"2508\" data-end=\"2577\"\u003eInstalled Accessories: Undervoltage Release with LED (U66 Option)\u003c\/li\u003e\n\u003cli data-section-id=\"198ct1w\" data-start=\"2578\" data-end=\"2618\"\u003eLug Type: Without Terminals Standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"rzxvn7\" data-start=\"2620\" data-end=\"2639\"\u003eImportant Note\u003c\/h2\u003e\n\u003cp data-start=\"2640\" data-end=\"3014\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eProduct image may represent a standard base model and is for identification purposes only. This unit includes the factory-installed U66 undervoltage release option and uses a magnetic-only trip system requiring external overload protection. Always verify coordination requirements, system voltage, accessory compatibility, and installation conditions before purchase or use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Eaton Cutler Hammer Mining","offers":[{"title":"Certified Reconditioned","offer_id":48325746688249,"sku":"E2M3800MNWU66","price":7999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/E2M3800MNWU66.webp?v=1777279095","url":"https:\/\/mycircuitbreakers.com\/products\/eaton-cutler-hammer-e2m3800mnwu66-800a-3-pole-molded-case-mining-circuit-breaker-bolt-on-600vac","provider":"My Circuit Breakers","version":"1.0","type":"link"}