{"product_id":"hmdl3400-circuit-breaker","title":"HMDL3400 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the HMDL3400 Industrial Circuit Breaker—an exact-match solution engineered for maintenance, retrofit, and replacement projects where precise specifications matter. Designed to keep critical 600V systems protected, this 3-pole breaker is built to slot into existing gear with minimal hassle and maximum reliability.\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 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this specific model matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you're updating or replacing protection in an industrial setting, exact specification matching is nothing less than essential. The HMDL3400 provides a guaranteed reference point for compatibility, reducing the guesswork that can lead to mismatches, downtime, or unsafe configurations. The part number itself is the strongest indicator of fit, so start with HMDL3400 to ensure you’re aligning with the existing system design and protection requirements.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance on existing 600V, 3-pole circuits where proven compatibility is critical\u003c\/li\u003e \u003cli\u003eRetrofit projects that require aligning new protection with legacy panel boards and switchgear\u003c\/li\u003e \u003cli\u003eReplacement scenarios where you must match the original device’s amperage, pole count, and voltage\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat problems it solves\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePrevents misfits that can cause system downtime or improper protection by ensuring exact spec alignment\u003c\/li\u003e \u003cli\u003eStreamlines procurement and reduces uncertainty with a clearly defined part reference\u003c\/li\u003e \u003cli\u003eSupports reliable protection in demanding industrial environments by adhering to a precise 400A, 3-pole, 600V profile\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical guidance for ordering\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore purchasing, verify that your equipment rating matches 400A, 3-Pole, and 600V. The HMDL3400 is the best reference for compatibility, so use the part number as the primary check against your panel or switchgear specifications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426714210466,"sku":"HMDL3400","price":32970.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/hmdl3400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}