{"product_id":"square-d-ma36400-circuit-breaker","title":"Square D | MA36400 | Circuit Breaker | 400A | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D MA36400 is a 400A, 3-Pole circuit breaker built for demanding electrical distributions. Designed for maintenance, retrofit, and replacement scenarios, this unit ensures you can uphold safety and reliability when updating or restoring a panel’s protection system. With the MA36400, you’re choosing a trusted Square D component that’s engineered to perform in critical, high-load environments.\u003c\/p\u003e \u003ch3\u003eKey benefits that matter in real use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400A, 3-Pole configuration:\u003c\/strong\u003e Ideal for three-phase electrical systems requiring robust current protection across all three legs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliability from a trusted brand:\u003c\/strong\u003e Square D has a long-standing reputation for dependable safety devices in industrial and commercial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExact compatibility reference:\u003c\/strong\u003e The part number MA36400 serves as the best reference for matching specs in your panel or distribution setup.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFor maintenance, retrofit, and replacement:\u003c\/strong\u003e Specifically suited for upgrading existing installations or restoring protective function after component failure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhen and where to use\u003c\/h3\u003e\n\u003cp\u003eUse the MA36400 in systems that require a precise 400A, 3-pole protection device and where matching the original specifications is essential. It’s a practical choice for upgrading older panels, restoring critical feed protection, or aligning new protection with existing three-phase infrastructure.\u003c\/p\u003e \u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify fit and ratings to ensure compatibility with your panel model and bus arrangement. The MA36400 part number is the most reliable reference to confirm that this breaker matches the intended equipment and protection scheme.\u003c\/p\u003e \u003ch3\u003ePractical tips for ready-to-work protection\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eKeep the MA36400 on hand as a dedicated replacement for quick, minimize-downtime switchover.\u003c\/li\u003e \u003cli\u003eWork with a qualified electrical professional to confirm panel compatibility and proper installation procedures.\u003c\/li\u003e \u003cli\u003eDocument the part number (MA36400) in your maintenance logs to simplify future retrofit or replacement decisions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425674481826,"sku":"MA36400","price":310.0,"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\/square-d-ma36400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}