{"product_id":"siemens-hjxd63b300h-circuit-breaker","title":"Siemens | HJXD63B300H | Circuit Breaker | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HJXD63B300H, a purpose-built 3-pole circuit breaker designed for reliable three‑phase protection in maintenance, retrofit, and replacement projects. Built to Siemens’ exacting standards, this unit is crafted to slot into compatible electrical systems where matching specifications matter most for safety and performance.\u003c\/p\u003e \u003cp\u003eKey considerations for a trouble-free fit\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Suitable for maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility reference:\u003c\/strong\u003e The part number is the best reference for ensuring a correct match with your panel or enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eImportant:\u003c\/em\u003e Confirm fit and ratings before ordering. Use the HJXD63B300H part number to verify compatibility with your Siemens system or any panel that accepts Siemens components.\u003c\/p\u003e \u003ch3\u003eWhy this 3-pole breaker is a smart choice\u003c\/h3\u003e\n\u003cp\u003eThree-pole protection is essential for safeguarding three‑phase electrical systems, helping to prevent unbalanced loads and potential equipment damage. The HJXD63B300H is designed to align with Siemens’ engineering standards, offering predictable trip behavior and dependable performance in industrial, commercial, and light manufacturing environments. By choosing this unit for your retrofit or replacement needs, you help maintain system integrity, reduce downtime, and support ongoing electrical reliability.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eWhether you’re updating an aging panel, adding capacity to a three‑phase system, or replacing a failed breaker, the HJXD63B300H provides a compatible, ready-to-install solution. It’s well-suited for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCommercial building electrical retrofits where three‑phase protection is required\u003c\/li\u003e \u003cli\u003eIndustrial control panels and process lines that rely on stable, three‑phase supply\u003c\/li\u003e \u003cli\u003eMaintenance tasks that demand a trusted, OEM-referenced replacement part\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and selection\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eKeep the panel model and current rating on hand to cross-check with the HJXD63B300H specifications\u003c\/li\u003e \u003cli\u003eUse the exact part number as the primary compatibility reference to avoid mismatches\u003c\/li\u003e \u003cli\u003ePlan for proper safety procedures and, if needed, professional installation to ensure correct mounting and wiring\u003c\/li\u003e \u003cli\u003eLabel the new breaker clearly to reflect its three‑pole, three‑phase role within the panel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427485503650,"sku":"HJXD63B300H","price":10417.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/siemens-hjxd63b300h-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}