{"product_id":"square-d-lal3640022m-motor-circuit-protector-3-pole-400a-unit-mount-magnetic-only-instantaneous-trip","title":"Square D LAL3640022M Motor Circuit Protector – 3 Pole – 400A – Unit Mount – Magnetic Only – Instantaneous Trip","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a31059b-5ea8-83ee-a518-bb1b09e20197-12\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\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-6a31059b-5ea8-83ee-a518-bb1b09e20197-12\" data-turn-id-container=\"request-6a31059b-5ea8-83ee-a518-bb1b09e20197-12\" data-testid=\"conversation-turn-154\" 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 data-conversation-screenshot-content=\"\" 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=\"4dac4476-73a1-4025-b695-18e88a21da10\" 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=\"132\" data-end=\"786\"\u003eThe Square D LAL3640022M motor circuit protector is a high-performance, magnetic-only protection device designed for industrial motor control applications. Built for use in motor control centers and motor starters, it provides fast-acting short-circuit protection without thermal overload functions, making it ideal for specialized motor protection schemes. Rated for up to 600VAC and 250VDC, this unit-mount breaker is commonly used in heavy-duty industrial environments and can serve as a replacement for legacy L-frame systems, with many modern installations transitioning toward Schneider Electric PowerPact LGL36400U31X platforms.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ombln6\" data-start=\"788\" data-end=\"819\"\u003eVoltage and Current Ratings\u003c\/h3\u003e\n\u003cul data-start=\"821\" data-end=\"953\"\u003e\n\u003cli data-section-id=\"1om46o0\" data-start=\"821\" data-end=\"849\"\u003eCurrent Rating: 400 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"17t7tqq\" data-start=\"850\" data-end=\"898\"\u003eVoltage Rating: 240 \/ 480 \/ 600 VAC, 250 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"pvjmxy\" data-start=\"899\" data-end=\"917\"\u003ePhase: 3 Phase\u003c\/li\u003e\n\u003cli data-section-id=\"buto9u\" data-start=\"918\" data-end=\"953\"\u003eContinuous Current Rating: 100%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1uf5u9y\" data-start=\"955\" data-end=\"978\"\u003eInterrupting Rating\u003c\/h3\u003e\n\u003cul data-start=\"980\" data-end=\"1055\"\u003e\n\u003cli data-section-id=\"1c5072s\" data-start=\"980\" data-end=\"998\"\u003e42kA at 240VAC\u003c\/li\u003e\n\u003cli data-section-id=\"46nnwb\" data-start=\"999\" data-end=\"1017\"\u003e30kA at 480VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1rjl636\" data-start=\"1018\" data-end=\"1036\"\u003e22kA at 600VAC\u003c\/li\u003e\n\u003cli data-section-id=\"kpncev\" data-start=\"1037\" data-end=\"1055\"\u003e10kA at 250VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"jhcvpz\" data-start=\"1057\" data-end=\"1085\"\u003eTrip Unit and Protection\u003c\/h3\u003e\n\u003cul data-start=\"1087\" data-end=\"1344\"\u003e\n\u003cli data-section-id=\"10pfw6t\" data-start=\"1087\" data-end=\"1141\"\u003eProtection Type:\n\u003cul data-start=\"1108\" data-end=\"1141\"\u003e\n\u003cli data-section-id=\"1ee5xro\" data-start=\"1108\" data-end=\"1141\"\u003eShort-Circuit Protection Only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ly7lqe\" data-start=\"1142\" data-end=\"1176\"\u003eTrip Technology: Magnetic Only\u003c\/li\u003e\n\u003cli data-section-id=\"lalp35\" data-start=\"1177\" data-end=\"1223\"\u003eTrip Function Code: I (Instantaneous Only)\u003c\/li\u003e\n\u003cli data-section-id=\"179sd89\" data-start=\"1224\" data-end=\"1276\"\u003eTrip Adjustability: Adjustable Magnetic Settings\u003c\/li\u003e\n\u003cli data-section-id=\"1rqvyur\" data-start=\"1277\" data-end=\"1344\"\u003eNo thermal overload protection (Motor Circuit Protector design)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"x3ylao\" data-start=\"1346\" data-end=\"1376\"\u003eConfiguration and Mounting\u003c\/h3\u003e\n\u003cul data-start=\"1378\" data-end=\"1582\"\u003e\n\u003cli data-section-id=\"10zggz9\" data-start=\"1378\" data-end=\"1395\"\u003ePoles: 3 Pole\u003c\/li\u003e\n\u003cli data-section-id=\"adz8y7\" data-start=\"1396\" data-end=\"1411\"\u003eSeries: LAL\u003c\/li\u003e\n\u003cli data-section-id=\"v2rvm7\" data-start=\"1412\" data-end=\"1472\"\u003eFrame Type: Motor Circuit Protector (L-Frame equivalent)\u003c\/li\u003e\n\u003cli data-section-id=\"1ovz2pc\" data-start=\"1473\" data-end=\"1502\"\u003eMounting Mode: Unit Mount\u003c\/li\u003e\n\u003cli data-section-id=\"rpfajc\" data-start=\"1503\" data-end=\"1557\"\u003eApplication: Motor Control Centers, Motor Starters\u003c\/li\u003e\n\u003cli data-section-id=\"18mx7ug\" data-start=\"1558\" data-end=\"1582\"\u003eControl Type: Toggle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"16isa0t\" data-start=\"1584\" data-end=\"1611\"\u003ePhysical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"1613\" data-end=\"1799\"\u003e\n\u003cli data-section-id=\"1nbdjus\" data-start=\"1613\" data-end=\"1636\"\u003eTerminal Type: Lugs\u003c\/li\u003e\n\u003cli data-section-id=\"r4optd\" data-start=\"1637\" data-end=\"1689\"\u003eWire Range: 1 AWG to 600 kcmil (Aluminum\/Copper)\u003c\/li\u003e\n\u003cli data-section-id=\"4dkjm4\" data-start=\"1690\" data-end=\"1799\"\u003eOptional Accessories:\n\u003cul data-start=\"1716\" data-end=\"1799\"\u003e\n\u003cli data-section-id=\"zf2sx0\" data-start=\"1716\" data-end=\"1730\"\u003eShunt Trip\u003c\/li\u003e\n\u003cli data-section-id=\"1gb7sev\" data-start=\"1733\" data-end=\"1753\"\u003eAuxiliary Switch\u003c\/li\u003e\n\u003cli data-section-id=\"vvkxxo\" data-start=\"1756\" data-end=\"1780\"\u003eUndervoltage Release\u003c\/li\u003e\n\u003cli data-section-id=\"qbawzy\" data-start=\"1783\" data-end=\"1799\"\u003eAlarm Switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"cn8pd9\" data-start=\"1801\" data-end=\"1827\"\u003eElectrical Connections\u003c\/h3\u003e\n\u003cul data-start=\"1829\" data-end=\"1880\"\u003e\n\u003cli data-section-id=\"1x6t99c\" data-start=\"1829\" data-end=\"1854\"\u003eLine Connection: Lugs\u003c\/li\u003e\n\u003cli data-section-id=\"1k6cljc\" data-start=\"1855\" data-end=\"1880\"\u003eLoad Connection: Lugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1lk3oa6\" data-start=\"1882\" data-end=\"1914\"\u003eStandards and Certifications\u003c\/h3\u003e\n\u003cul data-start=\"1916\" data-end=\"1977\"\u003e\n\u003cli data-section-id=\"fjdscg\" data-start=\"1916\" data-end=\"1933\"\u003eUL 489 Listed\u003c\/li\u003e\n\u003cli data-section-id=\"1k7op58\" data-start=\"1934\" data-end=\"1959\"\u003eIEC 60947-2 Compliant\u003c\/li\u003e\n\u003cli data-section-id=\"1ygh62h\" data-start=\"1960\" data-end=\"1977\"\u003eCSA Certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"1979\" data-end=\"1991\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"1993\" data-end=\"2620\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1p41vak\" data-start=\"1993\" data-end=\"2063\"\u003eMotor circuit protector designed for industrial motor applications\u003c\/li\u003e\n\u003cli data-section-id=\"3xbfh7\" data-start=\"2064\" data-end=\"2132\"\u003eMagnetic-only instantaneous trip for fast short-circuit response\u003c\/li\u003e\n\u003cli data-section-id=\"1hn4uf5\" data-start=\"2133\" data-end=\"2179\"\u003eAdjustable magnetic trip range (500–1000A)\u003c\/li\u003e\n\u003cli data-section-id=\"nxn8m2\" data-start=\"2180\" data-end=\"2241\"\u003eHigh interrupting capacity across multiple voltage levels\u003c\/li\u003e\n\u003cli data-section-id=\"cd8cuz\" data-start=\"2242\" data-end=\"2306\"\u003eCompatible with motor control centers and starter assemblies\u003c\/li\u003e\n\u003cli data-section-id=\"11aghek\" data-start=\"2307\" data-end=\"2357\"\u003eUnit-mount construction for direct integration\u003c\/li\u003e\n\u003cli data-section-id=\"3gl0jj\" data-start=\"2358\" data-end=\"2416\"\u003eSupports optional protective and signaling accessories\u003c\/li\u003e\n\u003cli data-section-id=\"10djues\" data-start=\"2417\" data-end=\"2468\"\u003eDesigned for heavy-duty industrial environments\u003c\/li\u003e\n\u003cli data-section-id=\"lxdxvj\" data-start=\"2469\" data-end=\"2541\"\u003eCommonly used in systems transitioning to modern PowerPact platforms\u003c\/li\u003e\n\u003cli data-section-id=\"xvz6fg\" data-start=\"2542\" data-end=\"2620\" data-is-last-node=\"\"\u003eManufactured by Schneider Electric for reliable motor protection performance\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\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"NEW","offer_id":48537999376633,"sku":"LAL3640022M","price":3427.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/lal3640022m_1024x_917d4bfe-6e1d-402a-b59d-831fe045446d.webp?v=1781635760","url":"https:\/\/mycircuitbreakers.com\/products\/square-d-lal3640022m-motor-circuit-protector-3-pole-400a-unit-mount-magnetic-only-instantaneous-trip","provider":"My Circuit Breakers","version":"1.0","type":"link"}