{"product_id":"schneider-electric-9421lw4-circuit-breaker-operating-mechanism","title":"Schneider Electric 9421LW4 Circuit Breaker Operating Mechanism","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCHNEIDER ELECTRIC 9421LW4 is a door-mounted, variable-depth circuit breaker operating mechanism designed for use with M\/P Frame 1200 ampere breakers. It features an 8-inch rotary lever handle with a variable-depth shaft that adjusts from 7.2 to 22.25 inches, allowing installation across a range of enclosure depths without custom hardware. The mechanism is rated for NEMA 1\/3R\/12 enclosures, meaning it is suitable for general indoor use, rainproof, and dusttight applications. All-metal construction provides durability in demanding industrial and commercial environments. Licensed electricians install this accessory as part of a complete panelboard or switchboard assembly.\u003c\/p\u003e\u003cp\u003eThis operating mechanism is intended for industrial and commercial electrical distribution systems where a breaker must be operated from outside a closed enclosure door. The right-side handle mounting location and 3-pole configuration make it appropriate for three-phase power distribution panels. The Class 9421 Type L series is commonly used in manufacturing facilities, commercial buildings, and utility rooms where M\/P Frame breakers are installed in NEMA 1\/3R\/12 enclosures. The handle assembly mounts to the enclosure door and connects to the breaker via a variable-depth shaft, keeping personnel clear of live components during operation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e8-inch rotary lever handle included, mounted on the right side of the enclosure door\u003c\/li\u003e\n\u003cli\u003eVariable-depth shaft adjusts from 7.2 to 22.25 inches to accommodate different enclosure depths\u003c\/li\u003e\n\u003cli\u003eAll-metal, heavy-duty construction with trip indication\u003c\/li\u003e\n\u003cli\u003eCan be padlocked in the off position when the enclosure door is open\u003c\/li\u003e\n\u003cli\u003eHandle assemblies accept up to three padlocks, which also lock the enclosure door closed\u003c\/li\u003e\n\u003cli\u003eRainproof and dusttight construction rated for NEMA 1\/3R\/12 enclosures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with M\/P Frame 1200 ampere circuit breakers installed in NEMA 1\/3R\/12 enclosures. Compatible with Class 9421 Type L door-mounted operating mechanism applications as noted in the product series data.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a qualified, licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the circuit before beginning any work on the breaker or operating mechanism. The variable-depth shaft must be adjusted and secured to match the actual door-to-breaker distance before operation. Verify that the padlocking hardware is fully engaged before returning the enclosure to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Type\u003c\/strong\u003e: 8 Inch Rotary Lever\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Mounting Location\u003c\/strong\u003e: Right\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Included\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle to Device Connection\u003c\/strong\u003e: 7.2 to 22.25 inches variable depth shaft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaker Type\u003c\/strong\u003e: M\/P Frame 1200 Ampere\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e: NEMA 1\/3R\/12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstructional Feature\u003c\/strong\u003e: Rainproof, Dusttight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 18 months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 19.6139 inches L x 12.3825 inches W x 11.1938 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 12 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: Mexico\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SCHNEIDER ELECTRIC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9421LW4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHNEIDER ELECTRIC","offers":[{"title":"Default Title","offer_id":51283901219122,"sku":"9421LW4","price":356.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309279380.jpg?v=1781062785","url":"https:\/\/voomisupply.com\/products\/schneider-electric-9421lw4-circuit-breaker-operating-mechanism","provider":"Voomi Supply","version":"1.0","type":"link"}