{"product_id":"square-d-9421ld7-circuit-breaker-operating-mechanism-400a","title":"Square D 9421LD7 Circuit Breaker Operating Mechanism 400A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SQUARE D 9421LD7 is a circuit breaker operating mechanism designed as an accessory for 400-amp circuit breakers. The operating mechanism provides the manual or motorized actuation interface that allows the breaker to be opened and closed during normal operation or service. Licensed electricians and qualified electrical contractors install this type of component during panel service, switchgear maintenance, or breaker replacement work. The unit measures 12.5 inches in length, 8.5 inches in width, and 8.5 inches in height, and weighs 3.68 pounds.\u003c\/p\u003e\u003cp\u003eThis operating mechanism is intended for use in commercial and industrial electrical distribution applications where 400A circuit breakers require an external or replacement actuating mechanism. It is suited for installation in switchboards, panelboards, or switchgear enclosures where the original operating mechanism has failed or must be replaced during a system upgrade or repair.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDesigned for use with 400A circuit breakers\u003c\/li\u003e\n\u003cli\u003eProvides the actuation interface for breaker open and close operations\u003c\/li\u003e\n\u003cli\u003eCompact form factor: 12.5 x 8.5 x 8.5 inches\u003c\/li\u003e\n\u003cli\u003eLightweight at 3.68 pounds for ease of handling during installation\u003c\/li\u003e\n\u003cli\u003eOEM-style replacement for straightforward fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 400A circuit breakers as specified by SQUARE D. Confirm exact breaker model compatibility against SQUARE D documentation before ordering.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed electrician in accordance with NEC requirements and the authority having jurisdiction. De-energize and lock out the circuit and verify absence of voltage before beginning any work on the breaker or its operating mechanism. Follow SQUARE D installation instructions for proper alignment and attachment of the mechanism to the breaker frame. Do not attempt to install or service this component while the breaker is energized.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessory Type\u003c\/strong\u003e: Operating Mechanism\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Use With\u003c\/strong\u003e: 400A Circuit Breaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 12.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 8.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 8.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.68 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SQUARE D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9421LD7\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHNEIDER ELECTRIC","offers":[{"title":"Default Title","offer_id":51540211695922,"sku":"9421LD7","price":241.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9778fa8215c35401c44025993c9d1c5c.jpg?v=1785848979","url":"https:\/\/voomisupply.com\/products\/square-d-9421ld7-circuit-breaker-operating-mechanism-400a","provider":"Voomi Supply","version":"1.0","type":"link"}