{"product_id":"westinghouse-nb31200s-circuit-breaker","title":"Westinghouse | NB31200S | Circuit Breaker | 1200A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Westinghouse NB31200S 1200A Circuit Breaker — a rugged, three-pole bolt-on solution built for demanding electrical distributions. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, it provides reliable protection for high-load, 3-phase systems at up to 600V.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 1200A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e NB31200S\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe NB31200S is purpose-built for scenarios where a heavy-duty, 3-phase circuit breaker is required to protect large feeders and main distribution paths. Its bolt-on design simplifies installation into compatible panels, making it a practical choice for field retrofits, service upgrades, or replacing a failed unit without overhauling the panel architecture.\u003c\/p\u003e \u003ch4\u003eWhy this model stands out\u003c\/h4\u003e\n\u003cp\u003eIn environments where electrical demand is high, a 1200A, 3-pole breaker like the NB31200S can prevent nuisance trips and reduce downtime by providing robust, dependable protection for essential circuits. The 600V rating ensures compatibility with typical industrial and commercial distribution systems, while the bolt-on method offers straightforward mounting and secure electrical connection for steady performance over time.\u003c\/p\u003e \u003ch4\u003eIdeal use cases\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and retrofits in industrial panels that require a high-capacity, 3-pole 600V breaker\u003c\/li\u003e \u003cli\u003eReplacement for failed or obsolete NB31200-series units in service entrances and large distribution panels\u003c\/li\u003e \u003cli\u003eUpgrades to support higher load requirements in facilities with expanding equipment and processes\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch4\u003eKey considerations for a seamless fit\u003c\/h4\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings to ensure compatibility with your panel. The NB31200S part number is the most reliable reference for matching hardware, mounting footprint, and electrical characteristics. Use this model when you need a dependable, bolt-on solution that aligns with Westinghouse’s design standards and your 3-phase, 600V distribution needs.\u003c\/p\u003e \u003ch4\u003ePractical insights for installers\u003c\/h4\u003e\n\u003cul\u003e \u003cli\u003eVerify the panel’s allowable amperage and bolt-on mounting compatibility with the NB31200S\u003c\/li\u003e \u003cli\u003eFollow proper lockout\/tagout procedures and consult panel diagrams to identify correct bus connections\u003c\/li\u003e \u003cli\u003eHandle with care to avoid damage to terminals and mounting surfaces during installation\u003c\/li\u003e \u003cli\u003eKeep a correctly rated spare NB31200S on hand for faster replacements and reduced downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427171651746,"sku":"NB31200S","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/westinghouse-nb31200s-circuit-breaker-1200a-3-pole-600v-bolt-240.webp?v=1789677026","url":"https:\/\/www.ampstate.com\/products\/westinghouse-nb31200s-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}