{"product_id":"westinghouse-rkl3400l-circuit-breaker","title":"Westinghouse | RKL3400L | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWestinghouse RKL3400L Circuit Breaker — 400A, 3-Pole, 600V, Bolt-On\u003c\/strong\u003e is a purpose-built protective device designed for dependable overcurrent protection in demanding electrical distributions. Identified by the part number RKL3400L, this breaker is ideal for maintenance, retrofit, and replacement projects where exact specs matter.\u003c\/p\u003e \u003ch3\u003eCore specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 400A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003eMounting: Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters for your system\u003c\/h3\u003e\n\u003cp\u003eWith a 400A rating, this Westinghouse breaker provides robust protection for high-load 3-phase applications. The three-pole design ensures balanced interruption across all phases, helping prevent uneven faults that can compromise equipment. Bolt-On mounting offers a secure, durable connection that simplifies field installation and service, reducing downtime during maintenance or upgrades. RKL3400L combines trusted Westinghouse engineering with a practical bolt-on format, making it a reliable choice for upgrades and replacements in commercial and industrial panels.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: Replace worn or failing breakers in existing 3-phase panel boards.\u003c\/li\u003e \u003cli\u003eRetrofit: Update older electrical systems to current protection standards without wiring changes.\u003c\/li\u003e \u003cli\u003eReplacement: Serve as an exact-match substitute for Westinghouse panels that require the RKL3400L model.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, compatibility, and best practices\u003c\/h3\u003e\n\u003cp\u003eAlways confirm the fit and ratings before ordering. The part number RKL3400L is the most reliable reference for compatibility with 3-pole, 600V systems using bolt-on mounting. If in doubt, verify panel labeling and bus-bar dimensions to ensure a seamless retrofit or replacement.\u003c\/p\u003e \u003ch3\u003ePractical installation tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down the equipment and follow lockout\/tagout procedures before servicing.\u003c\/li\u003e \u003cli\u003ePrepare the mounting surface and verify bolt spacing aligns with your panel’s specifications.\u003c\/li\u003e \u003cli\u003eConsult a licensed electrician if you’re unsure about mounting hardware, wiring terminals, or clearance requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cp\u003eOne Westinghouse RKL3400L circuit breaker (400A, 3-Pole, 600V, bolt-on).\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427169783970,"sku":"RKL3400L","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/westinghouse-rkl3400l-circuit-breaker-400a-3-pole-600v-bolt-454.webp?v=1789676583","url":"https:\/\/www.ampstate.com\/products\/westinghouse-rkl3400l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}