{"product_id":"siemens-hgb2b040b-40a-600v-2-pole-bolt-on-circuit-breaker","title":"Siemens HGB2B040B - 40 A, 600 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered by Siemens, the HGB2B040B 40A, 600V, 2-pole bolt-on molded case circuit breaker delivers reliable protection for branch circuits in panelboards and loadcenters. Its robust design and precise thermal-magnetic trip technology help minimize nuisance trips while keeping electrical systems safe and compliant.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection that stays solid through steady operation and routine panel maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection—responding accurately to sustained overcurrents and short-circuit events without unnecessary tripping.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole, 40A, 600V rating\u003c\/strong\u003e combines compact, efficient protection for both hot legs in multiwire circuits, suitable for a wide range of panel configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanelboard and loadcenter compatibility\u003c\/strong\u003e designed to pair with matching OEM environments for straightforward replacement and fewer installation surprises.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e ideal for residential, commercial, and light industrial electrical systems that require reliable branch circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the Siemens HGB2B040B\u003c\/h3\u003e\n\u003cp\u003eUnlike generic breakers, the HGB2B040B is engineered to integrate seamlessly with Siemens panelboards and OEM loadcenters, ensuring consistent performance across your electrical infrastructure. The combination of bolt-on robustness and a precise thermal-magnetic trip creates a dependable line of defense against overcurrent and short circuits, protecting wiring, devices, and occupants.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eNew installations in residential panels where a secure, long-lasting connection is essential\u003c\/li\u003e \u003cli\u003eRetrofits in commercial or light industrial panels needing reliable 2-pole protection for multiwire circuits\u003c\/li\u003e \u003cli\u003eReplacement for aging or incompatible breakers in compatible Siemens systems\u003c\/li\u003e \u003cli\u003eLoadcenters and panelboards in environments with vibration or moderate mechanical stress\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HGB2B040B\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 40A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 2\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical considerations\u003c\/h3\u003e\n\u003cp\u003eFollow Siemens installation guidelines and the panelboard manufacturer’s instructions to ensure proper torque and bus connections. The bolt-on design helps achieve a solid, vibration-resistant bond, which is especially valuable in equipment rooms, basements, or other locations prone to movement. For best results, verify compatibility with your existing OEM loadcenter, and replace any related accessories only with Siemens-approved components.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349805846690,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_eb87be42-30c5-4262-afbf-aeb4256b3ac9.png?v=1764157324","url":"https:\/\/www.ampstate.com\/products\/siemens-hgb2b040b-40a-600v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}