{"product_id":"hmca3400-circuit-breaker","title":"HMCA3400 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe HMCA3400 Circuit Breaker is an industrial-grade protective device designed for demanding electrical environments. With a 400A rating, a 3-Pole configuration, and a 600V maximum, it delivers reliable, coordinated protection for three-phase power systems while helping minimize downtime during maintenance or upgrades.\u003c\/p\u003e \u003ch2\u003eWhy the HMCA3400 stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase protection in one unit\u003c\/strong\u003e: The 3-pole design ensures all phases trip together, reducing the risk of phase imbalance and safeguarding connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current capability\u003c\/strong\u003e: At 400A, this breaker is well-suited for mid-to-heavy load applications commonly found in manufacturing, processing, and industrial controls.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage tolerance up to 600V\u003c\/strong\u003e: Built for modern industrial distributions, supporting a wide range of panel and switchgear configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready\u003c\/strong\u003e: Specifically positioned for tasks where exact specifications are required to match existing systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility reference\u003c\/strong\u003e: The part number HMCA3400 is the best reference to verify fitment and ratings before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications at a glance\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\u003eReference: HMCA3400 (best compatibility identifier)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance projects on existing 3-phase panels that require exact 400A, 600V protection\u003c\/li\u003e \u003cli\u003eRetrofit and upgrade of aging switchgear where compatibility with HMCA3400 is essential\u003c\/li\u003e \u003cli\u003eReplacement parts for spare parts inventories to minimize equipment downtime\u003c\/li\u003e \u003cli\u003eNew installations in industrial environments that run on three-phase power up to 600V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFitment, compatibility, and practical tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure seamless replacement. Use the HMCA3400 as the primary reference to match panel design, mounting style, and bus connections. If you’re cataloging spare parts for a facility, pairing this breaker with corresponding accessories and a compatible enclosure helps maintain regulatory compliance and consistent performance across your electrical distribution system.\u003c\/p\u003e \u003ch3\u003eMaintenance and care for long-term reliability\u003c\/h3\u003e\n\u003cp\u003ePlan regular visual inspections of the breaker and its terminals, watch for signs of heat or discoloration, and ensure connections stay torqued to manufacturer specifications by a qualified electrician. Keeping a current HMCA3400 on hand supports rapid replacement during scheduled maintenance or unforeseen outages, helping keep critical processes online with minimal disruption.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426172424354,"sku":"HMCA3400","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\/hmca3400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}