{"product_id":"siemens-hfd63b175-150a-600v-3-pole-bolt-on-circuit-breaker","title":"Siemens HFD63B175 - 150 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HFD63B175—a robust 3-pole bolt-on molded case circuit breaker designed to safeguard your electrical system with precision and reliability. Rated for 150A at up to 600V, this breaker is purpose-built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers, keeping the heartbeat of your electrical installation steady when demand spikes occur.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: Delivers a rigid, vibration-resistant bus connection, reducing movement-induced wear and ensuring consistent performance in commercial and light industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Provides stable, repeatable protection by combining thermal overload sensing with an instantaneous magnetic trip for short circuits—minimizing nuisance trips while guarding wiring and equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e: Ideal for 3-phase circuits, making it well-suited for commercial lighting, small motors, and distribution panels that require balanced protection across phases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh compatibility\u003c\/strong\u003e: Engineered to pair with matching OEM load centers and panelboards, simplifying replacements or upgrades without compatibility surprises.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e: Suitable for residential, commercial, and light industrial installations where reliable protection and quick serviceability are essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in real-world use: a bolt-on molded case breaker like the HFD63B175 not only blocks excessive current, it also maintains a tight, vibration-resistant connection that minimizes intermittent faults in demanding environments. The thermal-magnetic trip ensures a fast, clean response to short circuits while avoiding unnecessary trips during normal operation, helping protect conductors, devices, and downstream equipment.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eUse cases and scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew panel installations in commercial spaces where 3-phase circuits require dependable protection and a secure mounting method.\u003c\/li\u003e\n\u003cli\u003eRepairs or upgrades in OEM load centers that specify bolt-on breakers for a seamless fit and reliable bus connections.\u003c\/li\u003e\n\u003cli\u003eLight industrial applications with variable loads and occasional vibration, where mechanical stability and fast protection are critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Siemens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: HFD63B175\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 150A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 600V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Style\u003c\/strong\u003e: Bolt-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading a panelboard to support higher demand, replacing a failed unit, or specifying components for a new installation, the Siemens HFD63B175 delivers the trusted protection, mechanical stability, and compatibility you need to keep electrical systems running safely and efficiently.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349802995874,"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_7b542ca5-a555-4490-bb7d-dea7d044326f.png?v=1764157265","url":"https:\/\/www.ampstate.com\/products\/siemens-hfd63b175-150a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}