{"product_id":"siemens-hmxd63b500-500a-3-pole-bolt-on-circuit-breaker","title":"Siemens HMXD63B500 - 500 A, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HMXD63B500 500A, 3-Pole Bolt-On Molded Case Circuit Breaker is engineered to deliver dependable, high-current protection for demanding electrical panels. Built to protect residential, commercial, and light industrial applications, this bolt-on unit is ready to anchor your panelboard or loadcenter with a rock-solid connection and precise protection.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: provides a rigid, vibration-resistant bus connection, helping maintain consistent electrical contact even in panels subjected to movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: combines stable thermal overload protection with instantaneous magnetic trip action for reliable response to both gradual overloads and high-current faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e: engineered to pair with matching Siemens panelboards and loadcenters, ensuring a clean fit, straightforward replacement, and consistent system performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current capability\u003c\/strong\u003e: 500A rating makes it suitable for main feeders and large branch circuits in service panels and distribution setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e: ideal for 3-phase systems, providing coordinated protection across multiple phases with one compact device.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in real-world installations\u003c\/p\u003e \u003cul\u003e \u003cli\u003eReduces downtime and maintenance risk with a robust, vibration-resistant connection that stays secure over time.\u003c\/li\u003e \u003cli\u003eDelivers predictable protection under a range of fault conditions thanks to its thermal-magnetic trip mechanism.\u003c\/li\u003e \u003cli\u003eOffers a seamless, dependable upgrade or replacement path within Siemens panel ecosystems, helping maintain warranty validity and system integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and ideal applications\u003c\/p\u003e \u003cul\u003e \u003cli\u003eUpgrading or commissioning 500A service feeders in residential or light commercial panels that require reliable heavy-duty protection.\u003c\/li\u003e \u003cli\u003eFeeding large-draw equipment in commercial spaces while maintaining safe, code-compliant overcurrent protection.\u003c\/li\u003e \u003cli\u003eReplacing worn or damaged three-pole breakers in Siemens panelboards to restore optimal protection without compatibility concerns.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTechnical snapshot\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HMXD63B500\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 500 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eShop confidently with AmpState — authentic Siemens hardware designed for durability, straightforward installation, and long-term protection of your electrical system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349812433058,"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_eaabbb88-2266-4a9a-84b2-c45771b53d7d.png?v=1764157523","url":"https:\/\/www.ampstate.com\/products\/siemens-hmxd63b500-500a-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}