{"product_id":"westinghouse-314c640g18-circuit-breaker","title":"Westinghouse | 314C640G18 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Westinghouse 314C640G18 circuit breaker is a heavy-duty, high-current protection device designed for reliability in commercial and industrial electrical systems. With a 400A rating, 3-pole configuration, and a 600V operating range, this breaker is built to safeguard equipment and maintain continuous operation in demanding environments. It’s the practical choice for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 400A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePart number: 314C640G18\u003c\/li\u003e \u003cli\u003eApplication: Circuit protection for three-phase systems; suitable for maintenance, retrofit, and replacement with matching specs\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat sets this breaker apart\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eExact spec alignment: The 314C640G18 is a precise fit for panels and assemblies that require Westinghouse compatibility, helping you avoid unnecessary panel rewiring or adaptations.\u003c\/li\u003e \u003cli\u003eFocused replacement solution: Designed to slide into service where a 400A, 3-pole, 600V protection device is needed, minimizing downtime and simplifying procurement when upgrading existing infrastructure.\u003c\/li\u003e \u003cli\u003eDurable performance: Engineered to handle the stresses of industrial and commercial loads, delivering dependable protection during fault conditions and reducing the risk of equipment damage.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance replacements in legacy panels that rely on Westinghouse 314C640G18 specifications\u003c\/li\u003e \u003cli\u003eRetrofits in facilities upgrading to higher current protections while preserving existing bus layouts and wiring pathways\u003c\/li\u003e \u003cli\u003eNew installs that require a compliant, three-phase 400A, 600V protective device with a proven compatibility track record\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility and fit verification\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm that the 314C640G18 matches your system’s ratings and panel design. The part number is the most reliable reference for compatibility, so cross-check it against your equipment directory and panel labeling to ensure a seamless replacement.\u003c\/p\u003e \u003ch2\u003eInstallation and safety\u003c\/h2\u003e\n\u003cp\u003eDue to the high current and three-phase voltage involved, installation should be performed by a qualified electrician with the panel de-energized and locked out. Follow all applicable electrical codes and manufacturer guidelines when replacing or retrofitting circuit breakers to maintain system safety and warranty integrity.\u003c\/p\u003e \u003ch2\u003ePractical tips and insights\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eKeep a spare 314C640G18 on hand for planned maintenance or unexpected replacements to minimize equipment downtime.\u003c\/li\u003e \u003cli\u003eLabel the panel directory clearly after installation to reflect the new breaker’s specifications for future service.\u003c\/li\u003e \u003cli\u003eUse the part number 314C640G18 as the primary reference when checking compatibility with existing Westinghouse-style distribution boards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427329724578,"sku":"314C640G18","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-314c640g18-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}