{"product_id":"lab3400s-circuit-breaker","title":"LAB3400S | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eLAB3400S Industrial Circuit Breaker\u003c\/strong\u003e is built for reliability in demanding electrical environments. This 400A, 3-pole, 600V unit is the trusted choice for maintenance, retrofit, and replacement projects where exact specifications matter to keep systems safe and compliant.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole (three-phase)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePurpose:\u003c\/strong\u003e Industrial circuit breaker for panel integration and service continuity\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility reference:\u003c\/strong\u003e Part number LAB3400S is your strongest indicator for matching fit\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this LAB3400S stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrecise replacement fit for three-phase systems: Designed to align with standard industrial panels, reducing installation time and potential wiring adjustments.\u003c\/li\u003e \u003cli\u003eCompact, purpose-built design for retrofit projects: Maintains the existing footprint while delivering robust protection at a 400A rating and 600V capacity.\u003c\/li\u003e \u003cli\u003eReliable maintenance-friendly experience: Facilitates straightforward removal and replacement, helping minimize downtime during service windows.\u003c\/li\u003e \u003cli\u003eClear compatibility path: Rely on the LAB3400S part number as the primary reference when cross-checking against your panel, busing, and load configurations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: Swap in a like-for-like unit to restore dependable protection in a 3-phase distribution circuit without reconfiguring wiring.\u003c\/li\u003e \u003cli\u003eRetrofit: Upgrade older equipment to a 400A, 3-pole, 600V rating to support revised load demands while preserving the existing panel layout.\u003c\/li\u003e \u003cli\u003eReplacement: Deploy in cabinets and disconnects where a direct-fit, three-pole 600V breaker is required to maintain system safety and continuity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and ordering tips\u003c\/h3\u003e\n\u003cp\u003eAlways confirm fit and ratings against your panel documentation before ordering. Use LAB3400S as the primary compatibility reference to ensure the replacement matches your existing breaker’s footprint, mounting style, and electrical characteristics. If you’re unsure, compare the panel label, the breaker’s amperage and pole configuration, and the 600V rating to avoid downtime and ensure seamless operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426205651106,"sku":"LAB3400S","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/lab3400s-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}