{"product_id":"siemens-hfd63b070-70a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HFD63B070 - 70 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003eSiemens HFD63B070 is a 70A, 600V, 3-pole bolt-on molded case circuit breaker built to protect your panelboards and load centers from overcurrent and short-circuit events. Designed for reliability in everyday electrical environments, this breaker delivers a secure, vibration-resistant connection that helps maintain a solid bus interface even in installations with equipment motion or external vibration. \u003cem\u003eWhy this breaker stands out\u003c\/em\u003e\n- Secure bolt-on mounting for a rigid, vibration-resistant bus connection, reducing the risk of loose contacts that can compromise protection.\n- Thermal-magnetic trip unit provides stable, repeatable protection across a range of operating conditions. The thermal element responds to sustained overloads, while the magnetic element reacts quickly to short-circuit surges, helping minimize damage to downstream equipment.\n- 3-pole configuration supports three-phase circuits, making it ideal for commercial and light industrial applications where balanced protection is essential.\n- 600V maximum rating expands its compatibility with higher-voltage panelfronts and select industrial feeders, delivering broad versatility in mixed-use facilities.\n- Ready-to-use with matching Siemens OEM load centers and panelboards, ensuring proper fit, performance, and coordinated protection schemes. \u003cem\u003eReal-world use cases\u003c\/em\u003e\n- New panel installations in small-to-medium commercial spaces requiring robust three-phase protection.\n- Retrofit or replacement projects where a compatible Siemens HFD63B070 breaker helps restore proper protection in existing load centers.\n- Residential-commercial light industrial upgrades where a reliable bolt-on option is preferred for durable bus connections and long service life. \u003cem\u003eWhat it means for you\u003c\/em\u003e\n- Peace of mind from a proven thermal-magnetic protection approach that covers both overloads and short circuits.\n- A dependable, time-tested solution designed to integrate smoothly with Siemens OEM panelboards and load centers, reducing compatibility concerns during installation.\n- Clear, actionable specs in a compact package: 70A rating, 600V capability, and a 3-pole design to match your system’s needs. \u003cem\u003eTechnical snapshot\u003c\/em\u003e\n- Manufacturer: Siemens\n- Part Number: HFD63B070\n- Type: Thermal-magnetic molded case circuit breaker\n- Amperage Rating: 70 A\n- Voltage Rating: 600 V\n- Number of Poles: 3\n- Mounting Style: Bolt-on\n- Application: Branch circuit overcurrent and short-circuit protection This breaker is the right choice when you need dependable, three-phase protection with a secure mounting approach and a protection strategy that remains consistent across operating conditions. Whether you’re outfitting a new panel or upgrading an existing installation, the Siemens HFD63B070 delivers the clarity, compatibility, and protection performance your electrical system relies on.\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349802406050,"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_c70d2321-3c04-4db9-871f-8c3d150d644c.png?v=1764157242","url":"https:\/\/www.ampstate.com\/products\/siemens-hfd63b070-70a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}