{"product_id":"siemens-heg3b040b","title":"Siemens HEG3B040B 40A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens \u003cstrong\u003eHEG3B040B\u003c\/strong\u003e 40A 3-Pole 600 V Circuit Breaker — a purpose-built protective device engineered for reliable performance in three-phase electrical systems. With a \u003cstrong\u003e40 A\u003c\/strong\u003e rating and a \u003cstrong\u003e600 V\u003c\/strong\u003e maximum, this breaker is designed to guard commercial and light industrial panels against overloads and short circuits, keeping your critical equipment protected and operational.\u003c\/p\u003e \u003cp\u003eDesigned for reliability in demanding environments, the HEG3B040B delivers coordinated protection across all three phases, reducing the risk of unbalanced faults that can lead to equipment damage. Its tri-pole configuration simplifies wiring and protection across three live conductors, streamlining installation and maintenance in three-phase networks.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: \u003cstrong\u003e40 A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePoles: \u003cstrong\u003e3\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage rating: \u003cstrong\u003e600 V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePart Number: \u003cstrong\u003eHEG3B040B\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this 3-pole design matters\u003c\/h3\u003e\n\u003cp\u003eIn three-phase systems, protecting each phase with a single device falls short of comprehensive protection. The \u003cstrong\u003eHEG3B040B\u003c\/strong\u003e safeguards all three conductors simultaneously, promoting balanced protection, safer panel operation, and streamlined wiring compared to separate single-pole solutions.\u003c\/p\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrevents phase faults from cascading across the network, shielding downstream equipment\u003c\/li\u003e \u003cli\u003eStops overloads before motors and controllers overheat, helping extend equipment life\u003c\/li\u003e \u003cli\u003eOffers coordinated protection across all phases, reducing nuisance trips and downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003ePerfect for three-phase motor circuits, HVAC equipment, pumps, conveyors, and other commercial or light industrial loads operating on 600 V. A solid choice for electrical panels in manufacturing facilities, warehouses, or large office complexes with three-phase distribution.\u003c\/p\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel and wiring are rated for 600 V and three-phase operation\u003c\/li\u003e \u003cli\u003eEnsure mounting and bus compatibility align with Siemens specifications for the HEG3B040B\u003c\/li\u003e \u003cli\u003eFollow local electrical codes and standard installation practices for safe replacement and ongoing protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose Siemens for this protection\u003c\/h3\u003e\n\u003cp\u003eSiemens brings decades of electrical protection expertise to every breaker. The \u003cstrong\u003eHEG3B040B\u003c\/strong\u003e delivers dependable trip performance, consistent operation, and a design that integrates smoothly with Siemens electrical systems and standard panel configurations, helping you build safer, more reliable power distribution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423116021922,"sku":"HEG3B040B","price":2379.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/siemens-heg3b040b","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}