{"product_id":"square-d-lhf26400-circuit-breaker","title":"Square D | LHF26400 | Circuit Breaker | 400A | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D LHF26400 400A 3-Pole Circuit Breaker — a purpose-built protector designed for maintenance, retrofit, and replacement projects where exact specifications matter. This unit delivers reliable overcurrent protection for Square D installations, ensuring your system stays safeguarded under demanding loads.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cb\u003eAmperage:\u003c\/b\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart number (compatibility reference):\u003c\/b\u003e LHF26400\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility tip:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number is the best reference for compatibility with your Square D panel.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eDesigned to slot into compatible Square D systems, the LHF26400 helps reduce downtime during maintenance and retrofit by offering a precise match for 400A, 3-pole protection. Its 3-pole configuration is ideal for three-phase circuits, delivering dependable protection across each leg and simplifying panel wiring during replacements or upgrades. By sticking with the exact part reference, you avoid mismatches that can lead to compatibility issues or unreliable performance.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance of existing Square D installations where exact specifications are required\u003c\/li\u003e \u003cli\u003eRetrofit projects that upgrade protection while preserving panel layout and conductors\u003c\/li\u003e \u003cli\u003eReplacement of a failed breaker in commercial or industrial electrical setups that rely on 3-phase protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow to verify fit\u003c\/h3\u003e\n\u003col\u003e \u003cli\u003eCheck your panel labeling for acceptable part numbers and ratings\u003c\/li\u003e \u003cli\u003eUse LHF26400 as the primary compatibility reference to ensure a precise match\u003c\/li\u003e \u003cli\u003eConfirm the circuit requires 400A and a 3-pole configuration before purchasing\u003c\/li\u003e\n\u003c\/ol\u003e \u003ch3\u003ePractical notes for installation and care\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down the panel and follow lockout\/tagout procedures before handling any breakers\u003c\/li\u003e \u003cli\u003eStore and transport the breaker in protective packaging to prevent damage to terminals and ribs\u003c\/li\u003e \u003cli\u003eKeep a spare on hand for routine maintenance planning to minimize downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46427457585314,"sku":"LHF26400","price":4119.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/square-d-lhf26400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}