{"product_id":"cutler-hammer-kd3400vws42-400a-3p-circuit-breaker","title":"Cutler-Hammer KD3400VWS42 Circuit Breaker, 400A, 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eThe Cutler-Hammer KD3400VWS42 is a rugged, industrial-grade circuit breaker designed to stand up to demanding service, maintenance, and replacement projects. Boasting a 400 A rating and a 3-pole configuration, this unit delivers reliable protection for three-phase electrical systems where uptime and safety matter most.\u003c\/p\u003e \u003ch3\u003eKey capabilities that matter in real-world installations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400 A amperage:\u003c\/strong\u003e High-capacity protection suitable for heavy-load feeders and critical equipment in industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design:\u003c\/strong\u003e Balanced, synchronized protection for three-phase circuits, helping prevent phase imbalance and unnecessary trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart-number-based compatibility:\u003c\/strong\u003e Use KD3400VWS42 to confirm fit with your panel, bus configuration, and specific application requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade reliability:\u003c\/strong\u003e Built for service entrances, maintenance intervals, and replacement work within manufacturing, processing, and distribution environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and verification\u003c\/strong\u003e\u003cbr\u003e\nVerify fit by part number and application requirements to ensure seamless integration with your equipment. If you’re unsure about compatibility, our team can assist in confirming the KD3400VWS42's suitability for your exact application and panel configuration.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing aging or failed breakers in industrial panels where 400 A protection is required.\u003c\/li\u003e \u003cli\u003eUpgrading three-phase feeders to a high-capacity, reliable protection device.\u003c\/li\u003e \u003cli\u003eMaintenance shutdowns and service projects that demand dependable interruption protection and quick re-energization.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eProduct details\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Cutler-Hammer\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e KD3400VWS42\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNotes: Verify fit by part number and application requirements. If you need help matching a part number or confirming compatibility, message us and we’ll assist in ensuring the KD3400VWS42 is the right choice for your specific installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46415669199010,"sku":"KD3400VWS42","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/cutler-hammer-kd3400vws42-400a-3p-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}