{"product_id":"siemens-hfxd63b125l-125a-600v-3-pole-circuit-breaker","title":"Siemens HFXD63B125L - 125 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HFXD63B125L is a robust 125A, 600V, 3-pole molded case circuit breaker built to protect your electrical distribution with precision and reliability. Designed for use in panelboards and load centers, this breaker delivers dependable branch circuit overcurrent and short-circuit protection where it matters most.\u003c\/p\u003e \u003cp\u003eWhy this breaker stands out\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes usable space inside panels, reducing clutter while maintaining easy access for service and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying temperatures and load conditions—your circuits stay protected without nuisance trips during normal operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e125A, 600V, 3-pole configuration\u003c\/strong\u003e provides comprehensive protection for three-phase systems and feeds in commercial or light industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panel compatibility\u003c\/strong\u003e engineered to mate seamlessly with matching Siemens OEM loadcenters and panelboards, simplifying installation and ensuring reliable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial settings where dependable branch circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems does it solve?\u003c\/h3\u003e\n\u003cp\u003eIn modern electrical setups, space and dependable trip behavior are critical. The HFXD63B125L tackles both by offering a compact form factor that leaves room for other devices in your panel while guaranteeing clear, predictable protection during overloads and short circuits. Its thermal element detects gradual overloads, while the magnetic element responds instantly to high-current faults, reducing the risk of equipment damage and downtime.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or stocking replacement parts for residential panelboards and commercial load centers\u003c\/li\u003e \u003cli\u003eFeeder protection in small to mid-size commercial installations\u003c\/li\u003e \u003cli\u003eLight industrial electrical distributions where steady, reliable trip performance is critical\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong manufacturer:\u003e Siemens\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong part number:\u003e HFXD63B125L\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong type:\u003e Thermal-magnetic molded case circuit breaker\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong amperage rating:\u003e 125A\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong voltage rating:\u003e 600V\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong poles:\u003e 3\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong application:\u003e Branch circuit overcurrent and short-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Siemens HFXD63B125L when you need a trusted, space-efficient solution that delivers precise protection for three-phase circuits in panelboards and load centers. It’s the right balance of compact design, reliable protection, and OEM compatibility that electricians and facilities managers rely on for consistent performance day after day.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349804896418,"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_022ebe06-0f57-4ed2-9ebe-5abb70530182.png?v=1764157289","url":"https:\/\/www.ampstate.com\/products\/siemens-hfxd63b125l-125a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}