{"product_id":"westinghouse-504c740g21-circuit-breaker","title":"Westinghouse | 504C740G21 | Circuit Breaker | 150A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Westinghouse \u003cstrong\u003e504C740G21\u003c\/strong\u003e Circuit Breaker — a purpose-built protection device designed for reliability in modern electrical panels. This \u003cstrong\u003e150A\u003c\/strong\u003e, \u003cstrong\u003e3-pole\u003c\/strong\u003e, \u003cstrong\u003e600V\u003c\/strong\u003e bolt-on model is your go-to choice for upgrading, replacing, or maintaining three-phase systems where exact specs matter.\u003c\/p\u003e \u003cp\u003eKey advantages of this Westinghouse bolt-on circuit breaker:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration for 3-phase protection:\u003c\/strong\u003e Safely interrupts current in 3-phase circuits, supporting systems up to 600V.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e150A rating for robust circuit protection:\u003c\/strong\u003e Handles substantial loads common in commercial and light industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting:\u003c\/strong\u003e Facilitates secure, straightforward installation and service swaps in compatible panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect reference for compatibility:\u003c\/strong\u003e The part number \u003cstrong\u003e504C740G21\u003c\/strong\u003e is the best comparison point—confirm fit and ratings with your panel labeling before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhere this model shines:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMaintenance: Replacing aging or failed breakers in existing panels without redesigning the system.\u003c\/li\u003e \u003cli\u003eRetrofit: Upgrading to a higher-current, three-phase protection where a bolt-on style is required.\u003c\/li\u003e \u003cli\u003eReplacement: Keeping spare parts on hand for rapid service and reduced downtime.\u003c\/li\u003e \u003cli\u003eIdeal for: Commercial buildings, data centers, manufacturing facilities, and any installation with 3-phase 600V service needing reliable 150A protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and safety notes:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eVerify fit and ratings against your panel labeling and the part number before purchase.\u003c\/li\u003e \u003cli\u003eFollow all electrical code requirements and panel manufacturer recommendations during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427306492066,"sku":"504C740G21","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/westinghouse-504c740g21-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}