{"product_id":"siemens-hed42b070-70a-480v-2-pole-bolt-on-circuit-breaker","title":"Siemens HED42B070 - 70 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens HED42B070\u003c\/strong\u003e is a rugged 70A, 480V, 2-pole bolt-on molded case circuit breaker designed for dependable branch-circuit protection in panelboards and loadcenters. Its secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, helping prevent loosening and arcing in busy electrical spaces.\u003c\/p\u003e \u003cp\u003eThe built-in thermal-magnetic trip unit offers stable, repeatable protection by combining overload sensing with instantaneous short-circuit protection. This means predictable performance across temperature changes and varying load, which is essential for commercial and light-industrial environments where reliability matters.\u003c\/p\u003e \u003cp\u003eDesigned for seamless integration, the HED42B070 is compatible with matching OEM Siemens loadcenters and panelboards, ensuring a clean fit and straightforward replacement in existing systems.\u003c\/p\u003e \u003cp\u003eWhat it’s ideal for\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential, commercial, and light-industrial 480V distribution setups requiring solid two-pole protection\u003c\/li\u003e \u003cli\u003eUpgrading aging or failed breakers in Siemens panelboards and loadcenters\u003c\/li\u003e \u003cli\u003eApplications where secure bolt-on mounting minimizes movement and maintains a reliable bus connection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eKey specifications at a glance\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage rating: 70 A\u003c\/li\u003e \u003cli\u003eVoltage rating: 480 V\u003c\/li\u003e \u003cli\u003eNumber of poles: 2\u003c\/li\u003e \u003cli\u003eMounting style: Bolt-on\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips for best results\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify you’re selecting a breaker that matches your Siemens panelboard or loadcenter for optimal bus alignment and secure mounting\u003c\/li\u003e \u003cli\u003eTighten mounting hardware to the manufacturer’s specification to preserve the integrity of the bus connection in environments with vibration or temperature cycling\u003c\/li\u003e \u003cli\u003eUse this 2-pole unit for circuits where both lines must disconnect simultaneously in 480V systems, enhancing safety during maintenance or fault conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349800603810,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hed42b070-70-a-480-v-2-pole-bolt-on-circuit-breaker-443.webp?v=1788729760","url":"https:\/\/www.ampstate.com\/products\/siemens-hed42b070-70a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}