{"product_id":"siemens-hgb3b040b-40a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HGB3B040B - 40 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HGB3B040B is a 40A, 600V, 3-pole bolt-on molded case circuit breaker designed to protect your panelboards and load centers from overcurrent and short-circuit events. Built for reliable performance in residential, commercial, and light industrial settings, this unit pairs robust construction with precise protection to keep electrical systems safe and up and running.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting for a rigid, vibration-resistant connection\u003c\/strong\u003e — ensures a secure bus-bar interface even in environments with movement or vibrations, reducing the risk of loose connections over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e — delivers stable, repeatable protection by responding appropriately to both gradual overcurrent and sudden short-circuit conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e — ideal for 3-phase circuits, providing coordinated protection across all phases in one compact device.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility with OEM equipment\u003c\/strong\u003e — engineered to cooperate with matching Siemens OEM load centers and panelboards for straightforward upgrades and replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e — suitable for residential, commercial, and light industrial applications where dependable branch circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HGB3B040B\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and installation notes:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eIdeal for replacing worn or failed breakers in Siemens-compatible panelboards and load centers, maintaining system integrity and safety.\u003c\/li\u003e \u003cli\u003eSuitable for retrofit projects in small commercial spaces or light industrial setups where 3-phase protection is required.\u003c\/li\u003e \u003cli\u003eA practical choice for new installations that demand a durable, bolt-on solution with a clear thermal-magnetic protection profile.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the Siemens HGB3B040B means selecting a dependable, purpose-built component designed to protect your electrical infrastructure with precise, phase-coordinated performance. Its combination of bolt-on rigidity, stable protection, and OEM compatibility helps you reduce downtime, simplify maintenance, and safeguard both equipment and personnel in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349806370978,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hgb3b040b-40-a-600-v-3-pole-bolt-on-circuit-breaker-965.webp?v=1788730738","url":"https:\/\/www.ampstate.com\/products\/siemens-hgb3b040b-40a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}