{"product_id":"square-d-s29388-shunt-trip-380-480v-ac-for-powerpact-h-j-l-frame-circuit-breakers","title":"Square D S29388 Shunt Trip – 380–480V AC for PowerPact H, J \u0026 L Frame Circuit Breakers","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a24657d-22bc-8324-923d-20db3b6f8323-40\" 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-6a24657d-22bc-8324-923d-20db3b6f8323-40\" data-turn-id-container=\"request-6a24657d-22bc-8324-923d-20db3b6f8323-40\" data-testid=\"conversation-turn-90\" 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=\"45e7c9b4-6c50-40eb-b98a-371a9036a99d\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" 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 light markdown-new-styling\"\u003e\n\u003cp data-start=\"73\" data-end=\"573\"\u003eThe Square D S29388 Shunt Trip is a circuit breaker accessory designed for PowerPact H-, J-, and L-frame molded case circuit breakers (MCCBs). Manufactured by Schneider Electric under the Square D brand, this shunt trip enables remote electrical tripping of the circuit breaker when an external control voltage is applied. It is commonly used in emergency shutdown systems, fire alarm interfaces, industrial automation, and safety interlock applications where remote circuit interruption is required.\u003c\/p\u003e\n\u003ch2 data-section-id=\"k6a4r\" data-start=\"575\" data-end=\"596\"\u003eVoltage and Rating\u003c\/h2\u003e\n\u003cul data-start=\"597\" data-end=\"653\"\u003e\n\u003cli data-section-id=\"auoqsx\" data-start=\"597\" data-end=\"634\"\u003eRated Control Voltage: 380–480 V AC\u003c\/li\u003e\n\u003cli data-section-id=\"1t2u6n5\" data-start=\"635\" data-end=\"653\"\u003eType: Shunt Trip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"rkota4\" data-start=\"655\" data-end=\"676\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cul data-start=\"677\" data-end=\"913\"\u003e\n\u003cli data-section-id=\"q9qzjg\" data-start=\"677\" data-end=\"694\"\u003eBrand: Square D\u003c\/li\u003e\n\u003cli data-section-id=\"2c4uun\" data-start=\"695\" data-end=\"729\"\u003eManufacturer: Schneider Electric\u003c\/li\u003e\n\u003cli data-section-id=\"6zu9h1\" data-start=\"730\" data-end=\"752\"\u003eModel Number: S29388\u003c\/li\u003e\n\u003cli data-section-id=\"1r7z8yi\" data-start=\"753\" data-end=\"794\"\u003eProduct Type: Circuit Breaker Accessory\u003c\/li\u003e\n\u003cli data-section-id=\"1w9oty9\" data-start=\"795\" data-end=\"823\"\u003eAccessory Type: Shunt Trip\u003c\/li\u003e\n\u003cli data-section-id=\"1u7mwv5\" data-start=\"824\" data-end=\"913\"\u003eCompatible Circuit Breaker Types:\n\u003cul data-start=\"862\" data-end=\"913\"\u003e\n\u003cli data-section-id=\"1oc65nw\" data-start=\"862\" data-end=\"877\"\u003eH-Frame MCCBs\u003c\/li\u003e\n\u003cli data-section-id=\"13mkywe\" data-start=\"880\" data-end=\"895\"\u003eJ-Frame MCCBs\u003c\/li\u003e\n\u003cli data-section-id=\"1h47ep4\" data-start=\"898\" data-end=\"913\"\u003eL-Frame MCCBs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"915\" data-end=\"942\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul data-start=\"943\" data-end=\"1230\"\u003e\n\u003cli data-section-id=\"qceepe\" data-start=\"943\" data-end=\"1012\"\u003eFunction: Remote electrical tripping of compatible circuit breakers\u003c\/li\u003e\n\u003cli data-section-id=\"1ddmxrq\" data-start=\"1013\" data-end=\"1048\"\u003eWire Size Range: AWG 18 to AWG 14\u003c\/li\u003e\n\u003cli data-section-id=\"1e3tivi\" data-start=\"1049\" data-end=\"1100\"\u003eTerminal Tightening Torque: 12.39 lb-in (1.4 N·m)\u003c\/li\u003e\n\u003cli data-section-id=\"181zigi\" data-start=\"1101\" data-end=\"1171\"\u003eDesigned for integration with PowerPact molded case circuit breakers\u003c\/li\u003e\n\u003cli data-section-id=\"gpvtt8\" data-start=\"1172\" data-end=\"1230\"\u003eSupports emergency shutdown and remote control functions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"b76q0d\" data-start=\"1232\" data-end=\"1263\"\u003eCertifications and Standards\u003c\/h2\u003e\n\u003cul data-start=\"1264\" data-end=\"1279\"\u003e\n\u003cli data-section-id=\"nhpr0e\" data-start=\"1264\" data-end=\"1279\"\u003eCSA Certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1xcjw99\" data-start=\"1281\" data-end=\"1305\"\u003eFeatures and Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1306\" data-end=\"1683\"\u003e\n\u003cli data-section-id=\"mvfjm5\" data-start=\"1306\" data-end=\"1361\"\u003eProvides reliable remote breaker tripping capability.\u003c\/li\u003e\n\u003cli data-section-id=\"fg66fb\" data-start=\"1362\" data-end=\"1431\"\u003eAllows integration with emergency stop and fire protection systems.\u003c\/li\u003e\n\u003cli data-section-id=\"1huw2sw\" data-start=\"1432\" data-end=\"1474\"\u003eEnhances personnel and equipment safety.\u003c\/li\u003e\n\u003cli data-section-id=\"1ea4fvk\" data-start=\"1475\" data-end=\"1555\"\u003eCompact design enables easy installation within compatible breaker assemblies.\u003c\/li\u003e\n\u003cli data-section-id=\"odqwgq\" data-start=\"1556\" data-end=\"1621\"\u003eSupports industrial automation and building management systems.\u003c\/li\u003e\n\u003cli data-section-id=\"u6yspb\" data-start=\"1622\" data-end=\"1683\"\u003eManufactured to Square D quality and performance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"mu966k\" data-start=\"1685\" data-end=\"1700\"\u003eApplications\u003c\/h2\u003e\n\u003cul data-start=\"1701\" data-end=\"1950\"\u003e\n\u003cli data-section-id=\"vc8hdo\" data-start=\"1701\" data-end=\"1740\"\u003eIndustrial Power Distribution Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1aq811x\" data-start=\"1741\" data-end=\"1778\"\u003eCommercial Electrical Installations\u003c\/li\u003e\n\u003cli data-section-id=\"1o0higv\" data-start=\"1779\" data-end=\"1807\"\u003eEmergency Shutdown Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1qxsckw\" data-start=\"1808\" data-end=\"1838\"\u003eFire Alarm Interface Systems\u003c\/li\u003e\n\u003cli data-section-id=\"4mnp3\" data-start=\"1839\" data-end=\"1868\"\u003eBuilding Automation Systems\u003c\/li\u003e\n\u003cli data-section-id=\"c04670\" data-start=\"1869\" data-end=\"1892\"\u003eMotor Control Centers\u003c\/li\u003e\n\u003cli data-section-id=\"1rrfffx\" data-start=\"1893\" data-end=\"1922\"\u003eSafety Interlocking Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1qt6yqu\" data-start=\"1923\" data-end=\"1950\"\u003ePowerPact MCCB Assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"r2uxc2\" data-start=\"1952\" data-end=\"1970\"\u003eProduct Summary\u003c\/h2\u003e\n\u003cul data-start=\"1971\" data-end=\"2303\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"q9qzjg\" data-start=\"1971\" data-end=\"1988\"\u003eBrand: Square D\u003c\/li\u003e\n\u003cli data-section-id=\"yvr8uu\" data-start=\"1989\" data-end=\"2004\"\u003eModel: S29388\u003c\/li\u003e\n\u003cli data-section-id=\"1w9oty9\" data-start=\"2005\" data-end=\"2033\"\u003eAccessory Type: Shunt Trip\u003c\/li\u003e\n\u003cli data-section-id=\"otsjue\" data-start=\"2034\" data-end=\"2062\"\u003eRated Voltage: 380–480V AC\u003c\/li\u003e\n\u003cli data-section-id=\"udmin3\" data-start=\"2063\" data-end=\"2095\"\u003eCompatible Frames: H, J, and L\u003c\/li\u003e\n\u003cli data-section-id=\"yxgi6n\" data-start=\"2096\" data-end=\"2124\"\u003eWire Size Range: 14–18 AWG\u003c\/li\u003e\n\u003cli data-section-id=\"19qrgui\" data-start=\"2125\" data-end=\"2167\"\u003eTightening Torque: 12.39 lb-in (1.4 N·m)\u003c\/li\u003e\n\u003cli data-section-id=\"y9cl7g\" data-start=\"2168\" data-end=\"2198\"\u003eCertification: CSA Certified\u003c\/li\u003e\n\u003cli data-section-id=\"w8f9wu\" data-start=\"2199\" data-end=\"2303\" data-is-last-node=\"\"\u003eFunction: Remote electrical tripping for molded case circuit breakers and safety control applications.\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":48537728811257,"sku":"S29388","price":366.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/S29402-new-1_273d8f61-ee87-4a34-890f-0d955e08b63d.jpg?v=1781627564","url":"https:\/\/mycircuitbreakers.com\/products\/square-d-s29388-shunt-trip-380-480v-ac-for-powerpact-h-j-l-frame-circuit-breakers","provider":"My Circuit Breakers","version":"1.0","type":"link"}