{"product_id":"eaton-ch340st-ch-thermal-magnetic-circuit-breaker-40a-3-pole-240v-shunt-trip","title":"Eaton CH340ST CH Thermal Magnetic Circuit Breaker – 40A, 3-Pole, 240V, Shunt Trip","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"relative w-full overflow-visible\"\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 [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] 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-6a02164e-d728-83e9-913c-2b016ff57229-39\" data-turn-id-container=\"request-6a02164e-d728-83e9-913c-2b016ff57229-39\" data-testid=\"conversation-turn-218\" 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=\"42e7fc38-d42c-4e9d-8951-fa6c45e4e210\" 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 wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp data-start=\"140\" data-end=\"595\"\u003eThe Eaton CH340ST CH thermal magnetic circuit breaker provides reliable overcurrent protection with integrated shunt trip functionality for remote disconnection. Designed for use in Eaton CH loadcenters, it delivers common-trip operation across all three poles to ensure balanced circuit protection. The shunt trip feature allows external control of the breaker for safety systems, automation, or emergency shutdown applications.\u003c\/p\u003e\n\u003cp data-start=\"602\" data-end=\"624\"\u003e\u003cstrong data-start=\"602\" data-end=\"624\"\u003eElectrical Ratings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"626\" data-end=\"828\"\u003e\n\u003cli data-section-id=\"7wa872\" data-start=\"626\" data-end=\"649\"\u003eCurrent Rating: 40A\u003c\/li\u003e\n\u003cli data-section-id=\"1f7fnci\" data-start=\"650\" data-end=\"677\"\u003eVoltage Rating: 240V AC\u003c\/li\u003e\n\u003cli data-section-id=\"16th55b\" data-start=\"678\" data-end=\"709\"\u003eNumber of Poles: Three-pole\u003c\/li\u003e\n\u003cli data-section-id=\"13m4ppw\" data-start=\"710\" data-end=\"739\"\u003eInterrupt Rating: 10 kAIC\u003c\/li\u003e\n\u003cli data-section-id=\"19kvpt4\" data-start=\"740\" data-end=\"774\"\u003eTrip Type: Common breaker trip\u003c\/li\u003e\n\u003cli data-section-id=\"1au8999\" data-start=\"775\" data-end=\"803\"\u003eCircuit Breaker Type: CH\u003c\/li\u003e\n\u003cli data-section-id=\"f8nih2\" data-start=\"804\" data-end=\"828\"\u003eShunt Trip: Included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"835\" data-end=\"857\"\u003e\u003cstrong data-start=\"835\" data-end=\"857\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"859\" data-end=\"1279\"\u003e\n\u003cli data-section-id=\"104z54j\" data-start=\"859\" data-end=\"882\"\u003eManufacturer: Eaton\u003c\/li\u003e\n\u003cli data-section-id=\"q6oqny\" data-start=\"883\" data-end=\"910\"\u003eCatalog Number: CH340ST\u003c\/li\u003e\n\u003cli data-section-id=\"1qms49\" data-start=\"911\" data-end=\"932\"\u003eUPC: 782113322124\u003c\/li\u003e\n\u003cli data-section-id=\"1c90j2g\" data-start=\"933\" data-end=\"983\"\u003eProduct Type: Thermal magnetic circuit breaker\u003c\/li\u003e\n\u003cli data-section-id=\"5x0wal\" data-start=\"984\" data-end=\"1018\"\u003eUsed With: Type CH loadcenters\u003c\/li\u003e\n\u003cli data-section-id=\"nglb5i\" data-start=\"1019\" data-end=\"1050\"\u003eStandards: UL 489 certified\u003c\/li\u003e\n\u003cli data-section-id=\"dtnfc3\" data-start=\"1051\" data-end=\"1083\"\u003eWire Size: #10–1\/0 AWG Cu\/Al\u003c\/li\u003e\n\u003cli data-section-id=\"upokzm\" data-start=\"1084\" data-end=\"1154\"\u003eApplication: Branch circuit protection with remote trip capability\u003c\/li\u003e\n\u003cli data-section-id=\"1c4s4py\" data-start=\"1155\" data-end=\"1217\"\u003eType: 3\/4-inch CH standard circuit breaker with shunt trip\u003c\/li\u003e\n\u003cli data-section-id=\"98pchm\" data-start=\"1218\" data-end=\"1279\"\u003eWarranty: Limited lifetime residential, 1 year commercial\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1286\" data-end=\"1306\"\u003e\u003cstrong data-start=\"1286\" data-end=\"1306\"\u003ePhysical Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1308\" data-end=\"1421\"\u003e\n\u003cli data-section-id=\"1br42y0\" data-start=\"1308\" data-end=\"1340\"\u003eProduct Length\/Depth: 4.5 in\u003c\/li\u003e\n\u003cli data-section-id=\"19v4z4e\" data-start=\"1341\" data-end=\"1367\"\u003eProduct Height: 3.5 in\u003c\/li\u003e\n\u003cli data-section-id=\"1lemifk\" data-start=\"1368\" data-end=\"1393\"\u003eProduct Width: 4.5 in\u003c\/li\u003e\n\u003cli data-section-id=\"1991t57\" data-start=\"1394\" data-end=\"1421\"\u003eProduct Weight: 1.15 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1428\" data-end=\"1444\"\u003e\u003cstrong data-start=\"1428\" data-end=\"1444\"\u003eProduct Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1446\" data-end=\"1848\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"19axklk\" data-start=\"1446\" data-end=\"1521\"\u003eApplication: Residential and commercial electrical distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"167e7xl\" data-start=\"1522\" data-end=\"1567\"\u003eCompatibility: Eaton CH loadcenter panels\u003c\/li\u003e\n\u003cli data-section-id=\"1vmxfp4\" data-start=\"1568\" data-end=\"1637\"\u003eInstallation Use: Plug-on breaker requiring three 3\/4-inch spaces\u003c\/li\u003e\n\u003cli data-section-id=\"1nuned1\" data-start=\"1638\" data-end=\"1744\"\u003eFunction: Provides thermal magnetic protection with shunt trip for remote switching and safety control\u003c\/li\u003e\n\u003cli data-section-id=\"rvai72\" data-start=\"1745\" data-end=\"1848\" data-is-last-node=\"\"\u003eSafety Feature: Enables externally controlled circuit interruption for emergency or automated systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"contents\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Eaton Cutler-Hammer","offers":[{"title":"NEW","offer_id":48395642798329,"sku":"CH340ST","price":413.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/CH315ST_C_bf548e1f-e3ee-434e-a75d-180b63ea18d4.jpg?v=1778614595","url":"https:\/\/mycircuitbreakers.com\/products\/eaton-ch340st-ch-thermal-magnetic-circuit-breaker-40a-3-pole-240v-shunt-trip","provider":"My Circuit Breakers","version":"1.0","type":"link"}