{"product_id":"square-d-s33661-shunt-trip-s33661","title":"SQUARE D S33661 Shunt Trip S33661","description":"\u003ch3 data-end=\"18\" data-start=\"0\" data-section-id=\"nq8ynu\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-end=\"455\" data-start=\"19\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/square-d\"\u003eSquare D\u003c\/a\u003e S33661 Shunt Trip is a breaker accessory that allows remote electrical tripping of a circuit breaker via a control signal. Installed in industrial and commercial electrical distribution systems where remote shutdown, safety interlock, or emergency stop functionality is required. Electricians and maintenance teams use this shunt trip for replacement, retrofit, and safety system upgrades to provide remote breaker control.\u003c\/p\u003e\n\u003ch3 data-end=\"476\" data-start=\"457\" data-section-id=\"plkbhx\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-end=\"921\" data-start=\"477\"\u003eThe Square D S33661 shunt trip is used in motor control centers, generator transfer switches, fire\/safety shutdown circuits, and remote equipment protection systems where breakers must be tripped by an external control device such as a \u003ca href=\"https:\/\/plgautomation.com\/collections\/plcs-more\"\u003ePLC\u003c\/a\u003e, safety system, or building automation output. It supports emergency stop operations, automated safety shutdowns, and remote power isolation in industrial plants, commercial buildings, and critical infrastructure.\u003c\/p\u003e\n\u003ch3 data-end=\"954\" data-start=\"923\" data-section-id=\"68ulmp\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-end=\"1574\" data-start=\"955\"\u003e• Manufacturer: Schneider Electric \/ Square D\u003cbr data-end=\"1003\" data-start=\"1000\"\u003e• Model \/ Part Number: S33661\u003cbr data-end=\"1035\" data-start=\"1032\"\u003e• Product Type: Shunt Trip Accessory\u003cbr data-end=\"1074\" data-start=\"1071\"\u003e• Function: Remote electrical trip mechanism for compatible breakers\u003cbr data-end=\"1145\" data-start=\"1142\"\u003e• Control Voltage: Typically 120 V AC (verify specific model rating)\u003cbr data-end=\"1216\" data-start=\"1213\"\u003e• Compatibility: Works with specified Square D breaker frames that accept shunt trip accessories\u003cbr data-end=\"1315\" data-start=\"1312\"\u003e• Operation: Electrically triggered trip coil\u003cbr data-end=\"1363\" data-start=\"1360\"\u003e• Mounting: Installed on or wired into breaker accessory terminals\u003cbr data-end=\"1432\" data-start=\"1429\"\u003e• Connection: Control signal input from remote switch or automation output\u003cbr data-end=\"1509\" data-start=\"1506\"\u003e• Application: Remote breaker trip for safety and control systems\u003c\/p\u003e\n\u003ch3 data-end=\"1602\" data-start=\"1576\" data-section-id=\"1ln9bp8\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1742\" data-start=\"1603\"\u003e• Square D S33662 \u003cbr data-end=\"1654\" data-start=\"1651\"\u003e• Square D 8881ST \u003cbr data-end=\"1698\" data-start=\"1695\"\u003e• Schneider Electric QO \u003c\/p\u003e","brand":"Square D","offers":[{"title":"New","offer_id":50558459871534,"sku":"New","price":724.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/SQUARE_D_S33661.jpg?v=1751512437","url":"https:\/\/plgautomation.com\/products\/square-d-s33661-shunt-trip-s33661","provider":"PLG Automation ","version":"1.0","type":"link"}