{"product_id":"siemens-hfd63b125l-circuit-breaker","title":"Siemens | HFD63B125L | Circuit Breaker | 125A | 3-Pole | 600V | 65kA | Feed-Through","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HFD63B125L circuit breaker is a purpose-built feed-through protector designed for demanding electrical environments. With a 125 A rating, 3-pole configuration, and a 600 V maximum, this unit delivers reliable, coordinated protection for feeder circuits in retrofit, maintenance, or replacement projects. Its 65 kA interrupting capacity ensures rapid fault interruption, helping minimize damage in high-energy systems.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting capacity:\u003c\/strong\u003e 65 kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Feed-Through\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e HFD63B125L\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this Siemens breaker unique\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for feed-through applications, the HFD63B125L integrates seamlessly into panels and switchgear that require through-feed protection. The part number is the most reliable reference for compatibility, so when you’re replacing or retrofitting, matching \u003cem\u003eHFD63B125L\u003c\/em\u003e to your existing equipment minimizes installation risk and ensures electrical protection aligns with your system’s design.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and retrofit projects where exact specs must be maintained in 3-pole, 125 A, 600 V feeder protection.\u003c\/li\u003e \u003cli\u003eReplacement of aging feeders in industrial panels and switchgear that rely on Siemens’ feed-through protection architecture.\u003c\/li\u003e \u003cli\u003eNew installations in environments demanding high fault current interruption (65 kA) while preserving a reliable feed-through configuration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and ordering guidance\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify fit and ratings against your panel or enclosure. The \u003cstrong\u003eHFD63B125L\u003c\/strong\u003e part number is the best reference for compatibility, ensuring the breaker will meet your server or machine protection requirements. If you’re aligning with Siemens’ standard catalog entries, this unit slots into systems designed for feed-through protection with identical electrical characteristics.\u003c\/p\u003e \u003cp\u003eIn short, if you’re upgrading or replacing a 3-pole, 125 A, 600 V feed-through circuit protector, the Siemens HFD63B125L offers dependable performance, clear identification by part number, and the robust interrupting capacity necessary for demanding industrial electrical installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425630638242,"sku":"HFD63B125L","price":3272.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-hfd63b125l-circuit-breaker-125a-3-pole-600v-65ka-feed-644.webp?v=1789433562","url":"https:\/\/www.ampstate.com\/products\/siemens-hfd63b125l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}