{"product_id":"square-d-la26400ac-circuit-breaker","title":"Square D | LA26400AC | Circuit Breaker | 400A | 2-Pole | 600V | Plug-In","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D LA26400AC circuit breaker—a robust, high-current protection device designed for demanding 600V electrical systems. With a 400A rating and 2-pole configuration, this plug-in breaker is built for reliability, quick swaps, and dependable protection in retrofit, maintenance, and replacement scenarios.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConnection style:\u003c\/strong\u003e Plug-In for fast, drop-in installation in compatible Square D panels\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest reference for compatibility:\u003c\/strong\u003e Part number LA26400AC\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis breaker is ideal for upgrading high-current feeders, replacing worn or obsolete units, or retrofitting panels where precise specifications are required. It’s particularly well-suited for commercial and industrial distribution setups that operate at or near 600V and need dependable protection for two conductors running in tandem.\u003c\/p\u003e \u003ch3\u003eKey benefits and why it matters\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTime-saving installation:\u003c\/strong\u003e The plug-in design lets technicians swap breakers with minimal downtime in compatible panels, reducing service interruptions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current capability:\u003c\/strong\u003e 400A capacity supports large circuits and main feeders without compromising protection or control.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear reference for compatibility:\u003c\/strong\u003e Rely on the LA26400AC part number to match panels and catalogs—accurate fit reduces ordering surprises.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile use cases:\u003c\/strong\u003e Maintenance replacement, equipment upgrades, and retrofits in 600V distribution systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider this model\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFacility engineers managing mid-to-large electrical installations that require robust overcurrent protection at 600V\u003c\/li\u003e \u003cli\u003eMaintenance teams performing panel retrofits or replacements where exact specifications are critical\u003c\/li\u003e \u003cli\u003eElectrical contractors fabricating or upgrading commercial or light industrial distribution systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and compatibility\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings before ordering\u003c\/strong\u003e; use the LA26400AC as the primary compatibility reference.\u003c\/li\u003e \u003cli\u003eEnsure your panel accepts plug-in breakers of the two-pole, 600V configuration and that the current rating aligns with the protected circuit.\u003c\/li\u003e \u003cli\u003eTreat this breaker as a dedicated replacement for matching systems—do not mix with mismatched amperage or pole configurations in the same branch circuit.\u003c\/li\u003e \u003cli\u003eMaintain standard safety practices during installation and follow the panel manufacturer’s guidelines for torque and termination when applicable.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn environments where uptime matters and high-current protection is non-negotiable, the Square D LA26400AC delivers predictable performance, easy installation, and peace of mind. If your application requires a precise 400A, 2-Pole, 600V plug-in solution, this part number is the clear, reliable choice.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425681658018,"sku":"LA26400AC","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-la26400ac-circuit-breaker-400a-2-pole-600v-plug-455.webp?v=1789441313","url":"https:\/\/www.ampstate.com\/products\/square-d-la26400ac-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}