{"product_id":"siemens-ngb3k045b-circuit-breaker","title":"Siemens | NGB3K045B | Circuit Breaker | 45A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens NGB3K045B Circuit Breaker — a robust protection device designed for demanding electrical environments. This 45 A, 3-pole breaker is rated for up to 600 V, delivering reliable short-circuit and overload protection for your three-phase circuits.\u003c\/p\u003e \u003ch3\u003eWhy this Siemens breaker stands out\u003c\/h3\u003e\n\u003cp\u003eSpecificity you can trust: the part number NGB3K045B is the best reference for compatibility. Before ordering, verify fit and ratings to ensure it matches your panel or switchgear. This unit is ideal for maintenance, retrofit, or replacement projects where exact specifications matter.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e NGB3K045B\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003e- Maintenance and service: swap-in replacements in existing Siemens or compatible panels that require a 45 A, 3-pole, 600 V breaker.\u003c\/p\u003e\n\u003cp\u003e- Retrofit projects: upgrade older gear to a current Siemens specification to maintain alignment with protection schemes.\u003c\/p\u003e\n\u003cp\u003e- Replacement during panel upgrades: when a circuit breaker reaches end-of-life or is discontinued in your current configuration.\u003c\/p\u003e \u003cp\u003ePractical notes for procurement and installation:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings against your panelboard or switchgear documentation. The part number NGB3K045B is the most reliable reference for compatibility.\u003c\/li\u003e \u003cli\u003eHandle with standard safety practices for energized electrical work and follow manufacturer torque and termination guidelines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426648510626,"sku":"NGB3K045B","price":3494.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-ngb3k045b-circuit-breaker-45a-3-pole-600v-301.webp?v=1789600741","url":"https:\/\/www.ampstate.com\/products\/siemens-ngb3k045b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}