{"product_id":"siemens-hgb3k040b-circuit-breaker","title":"Siemens | HGB3K040B | Circuit Breaker | 40A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HGB3K040B—a purpose-built circuit breaker that delivers trusted protection for 3-phase electrical systems. Engineered for reliability in maintenance, retrofit, and replacement projects, this 40A, 3-pole unit is designed to safeguard demanding environments while fitting seamlessly into compatible Siemens panels and distribution equipment. When your setup requires robust overcurrent protection at 600V, this model stands ready to perform.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\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 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HGB3K040B\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e maintenance, retrofit, replacement\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose the HGB3K040B for your electrical system\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eDesigned for 3-phase distribution: The 3-pole configuration provides synchronized protection across all phases, helping prevent imbalanced loads and equipment damage in industrial and commercial applications.\u003c\/li\u003e \u003cli\u003ePrecise Siemens engineering: Built to exacting standards, this model aligns with Siemens panels and accessories, offering predictable performance and reliable protection when it matters most.\u003c\/li\u003e \u003cli\u003e600V capability: Suitable for a wide range of higher-voltage circuits, making it a versatile choice for equipment rooms, service panels, and motor circuits.\u003c\/li\u003e \u003cli\u003eClear reference for compatibility: The part number HGB3K040B is the best reference when verifying fit with existing gear—always confirm fit and ratings before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eUse cases and installation considerations\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: Replace worn-out or tripped breakers to restore protection in aging panels without compromising system integrity.\u003c\/li\u003e \u003cli\u003eRetrofit: Upgrade or standardize three-phase protection in facilities undergoing electrical modernization or expansion.\u003c\/li\u003e \u003cli\u003eReplacement: Keep a stock of compatible Siemens breakers on hand to minimize downtime during service windows.\u003c\/li\u003e \u003cli\u003eIdeal environments: Manufacturing floors, data centers, and commercial spaces with three-phase distribution that require reliable 40A protection at 600V.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical tips for best results\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAlways verify fit and ratings against your panel’s documentation before purchasing—the part number is the most reliable compatibility reference.\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque specifications during installation to ensure secure connections and consistent performance.\u003c\/li\u003e \u003cli\u003eStore spare breakers in their original packaging and rotate stock to ensure you’re using components within their rated service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46426654769314,"sku":"HGB3K040B","price":4078.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/siemens-hgb3k040b-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}