{"product_id":"leviton-telcom-420mi12wlev-20a-mechanical-interlock","title":"Leviton Telcom 420MI12WLEV 20A Mechanical Interlock","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe LEVITON TELCOM 420MI12WLEV is a 20-amp mechanical interlock designed to prevent two circuit positions from being energized simultaneously. Mechanical interlocks are a standard safety hardware accessory used in electrical panelboards, load centers, and switchgear where mutual exclusivity between two breaker positions must be enforced at the mechanical level. This device provides a physical barrier mechanism that blocks one breaker from being switched on while the other is in the on position, supporting reliable transfer switching and code-compliant installations.\u003c\/p\u003e\u003cp\u003eThe 420MI12WLEV is suited for use in residential and light commercial electrical applications where a mechanical interlock solution is required between two adjacent or specified breaker positions. It is typically installed by licensed electricians during new panel construction or retrofit transfer switch configurations, including generator interlock setups where a utility feed and a generator feed must be interlocked to prevent back-feeding.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e20-amp rated mechanical interlock for electrical panelboards and load centers\u003c\/li\u003e\n\u003cli\u003ePrevents simultaneous energization of two interlocked circuit positions\u003c\/li\u003e\n\u003cli\u003eHardware accessory category — sold as individual unit\u003c\/li\u003e\n\u003cli\u003eSupports code-compliant generator interlock and transfer switching configurations\u003c\/li\u003e\n\u003cli\u003eMechanical design requires no wiring or control voltage to operate\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style mechanical interlock accessory for electrical panelboards and load centers requiring 20A interlock hardware. Confirm compatibility with your specific panel model before ordering.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. De-energize and lock out the panel at the utility disconnect before beginning any installation work. Mechanical interlocks must be mounted per the manufacturer instructions to ensure proper engagement and disengagement between breaker handles. Do not modify the interlock mechanism or force breaker handles past the interlock resistance.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 20 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Unit\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: LEVITON TELCOM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 420MI12WLEV\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LEVITON","offers":[{"title":"Default Title","offer_id":51564075647282,"sku":"420MI12WLEV","price":2295.1,"currency_code":"USD","in_stock":false}],"url":"https:\/\/voomisupply.com\/products\/leviton-telcom-420mi12wlev-20a-mechanical-interlock","provider":"Voomi Supply","version":"1.0","type":"link"}