{"product_id":"eaton-web3400b-400a-3p-600v-circuit-breaker","title":"Eaton WEB3400B Circuit Breaker, 400A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton WEB3400B circuit breaker is engineered for industrial electrical service, maintenance, and replacement projects. With a 400 A rating, a 3-pole configuration for 3-phase systems, and a 600 V capacity, it provides dependable protection in demanding environments where uptime and safety matter.\u003c\/p\u003e \u003cp\u003eBuilt to integrate into panels and switchgear that require the WEB3400B form factor, this unit emphasizes compatibility through its part number. To ensure a perfect fit, verify the specific application requirements and confirm compatibility by part number before purchasing or swapping in the field.\u003c\/p\u003e \u003cp\u003eWho should consider the WEB3400B?\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacilities managers, maintenance teams, and electrical contractors tackling service upgrades, panel replacements, or new installations in industrial settings.\u003c\/li\u003e \u003cli\u003eProjects that require reliable, high-current protection for 3-phase power distribution at up to 600 V.\u003c\/li\u003e \u003cli\u003eApplications where confirming part-number compatibility minimizes downtime and ensures a smooth retrofit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKey details at a glance\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 400 A\u003c\/li\u003e \u003cli\u003ePoles: 3 (3-pole configuration for 3-phase systems)\u003c\/li\u003e \u003cli\u003eVoltage: 600 V\u003c\/li\u003e \u003cli\u003ePurpose: Industrial service, maintenance, and replacement projects\u003c\/li\u003e \u003cli\u003eCompatibility reminder: Verify fit by part number and application requirements\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for procurement and installation\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUse the WEB3400B part number as the primary reference to match your panel or switchgear requirements.\u003c\/li\u003e \u003cli\u003eCross-check your system’s voltage and current needs to confirm the 600 V \/ 400 A specification aligns with the intended load.\u003c\/li\u003e \u003cli\u003eIf you’re uncertain about compatibility or fit, send us a message—our team can assist with part-number validation and application considerations to help you avoid delays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46414509047970,"sku":"WEB3400B","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\/eaton-web3400b-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}