{"product_id":"siemens-hfxd63b070-70a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HFXD63B070 - 70 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens HFXD63B070 is a 70 A, 600 V, 3-pole bolt-on molded case circuit breaker built to guard panelboards and load centers from overcurrent and short-circuit events. The bolt-on design delivers a secure, vibration-resistant connection to the bus, ensuring reliable operation in demanding installations—from residential service panels to commercial setups.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, reducing the risk of loose contacts in environments with movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by coordinating thermal and magnetic response to overcurrent and short circuits, helping prevent nuisance trips while staying fast when faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole, 70 A, 600 V\u003c\/strong\u003e configuration is ideal for 3-phase systems and higher power circuits common in commercial and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e works with matching Siemens OEM load centers and panelboards, simplifying replacements, upgrades, and maintenance projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suited for residential, commercial, and light industrial environments where dependable branch-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: HFXD63B070\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 70 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and installation scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or retrofitting panels in residential or light commercial settings where a reliable 3-phase protection device is required.\u003c\/li\u003e \u003cli\u003eReplacement in existing Siemens panelboards to maintain compatibility and electrical coordination with OEM components.\u003c\/li\u003e \u003cli\u003eProtection for distribution circuits feeding motors, HVAC equipment, or other loads where consistent thermal-magnetic protection minimizes unexpected outages.\u003c\/li\u003e \u003cli\u003eNew installations in offices, retail spaces, and small warehouses where a robust bolt-on breaker reduces wire management issues and improves panel integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDurable bolt-on design provides superior mechanical stability in panels subject to vibration, thermal cycling, or movement.\u003c\/li\u003e \u003cli\u003eThermal-magnetic protection offers precise tripping thresholds, helping you avoid nuisance trips while still delivering fast response to faults.\u003c\/li\u003e \u003cli\u003eClear compatibility with Siemens OEM load centers and panelboards simplifies sourcing and ensures cohesive performance across the electrical system.\u003c\/li\u003e \u003cli\u003eSpecifically suited for 3-phase environments, making it a practical choice for structures and applications that require reliable multi-pole protection at 600 V.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349804732578,"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_a1efa824-a4aa-4fc5-b58c-ddb6a33fa0d5.png?v=1764157282","url":"https:\/\/www.ampstate.com\/products\/siemens-hfxd63b070-70a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}