{"product_id":"abb-t5n400tw-4-circuit-breaker","title":"ABB | T5N400TW-4 | Circuit Breaker | 400A | 4-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eABB T5N400TW-4 is a high-capacity circuit breaker designed to protect industrial power systems with precision. This 400A, 4-pole unit delivers reliable isolation for demanding electrical distributions at up to 600V, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAmperage: 400A\u003c\/li\u003e \u003cli\u003ePoles: 4-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number T5N400TW-4 is the best reference for compatibility with your panel, switchgear, or downstream equipment.\u003c\/p\u003e \u003ch2\u003eWhy this ABB breaker stands out for upgrades and servicing\u003c\/h2\u003e \u003cp\u003eUnlike generic substitutes, the T5N400TW-4 is engineered to align with ABB protection standards, offering predictable performance within your existing protection scheme. When you’re upgrading aging gear or performing a retrofit, this unit minimizes wiring changes and reduces downtime by matching the footprint and fundamental characteristics you already rely on.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMaintenance and retrofit: swap in the exact part to preserve protection coordination and minimize surprises during commissioning.\u003c\/li\u003e \u003cli\u003eReplacement for legacy ABB installations: ensures a like-for-like fit in panels and enclosures that expect ABB components.\u003c\/li\u003e \u003cli\u003eService readiness: keep a ready-to-go spare on hand for critical feeders and downtime-sensitive applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eBuying guidance and practical tips\u003c\/h2\u003e \u003cp\u003eTo ensure a seamless match, use the part number T5N400TW-4 when cross-checking with equipment manuals, catalogs, and labeling on your panel. Even with identical ratings, physical footprint, mounting style, and terminal configuration must align with the equipment you’re servicing.\u003c\/p\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e \u003cp\u003eMaintenance teams, panel retrofit projects, and facility managers handling industrial power distribution at 600V will find this ABB breaker well-suited for reliable, like-for-like protection. It’s particularly valuable for systems that require a 400A, 4-pole protection strategy with clear, ABB-standard performance expectations.\u003c\/p\u003e \u003cp\u003eChoosing ABB T5N400TW-4 means prioritizing precise compatibility, dependable protection, and long-term support for your installation. If you’re upgrading or replacing a similar ABB unit, this part number serves as your best reference for a precise, dependable swap.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46427147174050,"sku":"T5N400TW-4","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/abb-t5n400tw-4-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}