{"product_id":"siemens-hed43b070-70a-480v-3-pole-bolt-on-circuit-breaker","title":"Siemens HED43B070 - 70 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HED43B070 is a rugged 3-pole molded case circuit breaker (MCCB) engineered for dependable branch-circuit protection in panelboards and load centers. With a 70A rating and a 480V maximum, it confidently supports modern 3-phase loads while delivering reliable safety and performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey features that matter in the field\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting:\u003c\/strong\u003e Secure, rigid bus connections that resist vibration and maintain electrical integrity in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Provides stable, repeatable protection for both overloads and short circuits, reducing nuisance trips and protecting critical equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanel compatibility:\u003c\/strong\u003e Designed to work with matching Siemens OEM load centers and panelboards, enabling straightforward replacement or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e Ideal for residential, commercial, and light industrial settings where reliable 3-phase protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this 3-pole 480V bolt-on breaker stands out\u003c\/h3\u003e\n\u003cp\u003eWhen protecting feeders, motors, and distribution circuits, consistency matters. The HED43B070 maintains protective performance across varying temperatures and vibration, helping prevent unexpected outages. Its 480V rating makes it a strong fit for higher-voltage panel systems and three-phase installations, while its Siemens compatibility ensures a seamless integration into existing or new panelboards.\u003c\/p\u003e \u003ch3\u003eUse cases and installation scenarios\u003c\/h3\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eThree-phase motor circuits in light industrial equipment\u003c\/li\u003e \u003cli\u003eCommercial building feeders and HVAC systems\u003c\/li\u003e \u003cli\u003eResidential-commercial projects requiring higher voltage distribution\u003c\/li\u003e \u003cli\u003eRetrofits or upgrades in panelboards that need a bolt-on MCCB with Siemens compatibility\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 HED43B070\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 70A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 480V\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\u003eWith its combination of secure bolt-on mounting, precise thermal-magnetic protection, and seamless Siemens compatibility, the HED43B070 delivers dependable performance where it truly matters—keeping circuits protected and equipment running smoothly across a range of residential, commercial, and light industrial environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349801652386,"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_034cd298-534f-4d2e-b7e8-714ca16caf4d.png?v=1764157219","url":"https:\/\/www.ampstate.com\/products\/siemens-hed43b070-70a-480v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}