{"product_id":"siemens-he3a125l-circuit-breaker","title":"Siemens | HE3A125L | Circuit Breaker | 125A | 3-Pole | 480V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens HE3A125L is a bolt-on circuit breaker designed to protect 480V, three‑phase electrical systems with precise, reliable performance. Built for maintenance, retrofit, and replacement projects, this 125A unit helps you keep heavy-duty power distribution safe and uninterrupted when your specs require exact matching parts.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HE3A125L\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat sets this breaker apart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDesigned for straightforward bolt-on installation in compatible panels, enabling quicker maintenance and upgrade cycles without extensive rewiring.\u003c\/li\u003e \u003cli\u003eThree‑pole configuration supports standard 3‑phase power distribution, making it a reliable choice for industrial and commercial applications that run on 480V systems.\u003c\/li\u003e \u003cli\u003eExact specification compatibility is prioritized—the part number HE3A125L is the most reliable reference for ensuring a proper fit in your panel or disconnect assembly.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEquipment upgrades or replacements in industrial facilities, manufacturing lines, and data centers that operate at 480V three-phase power.\u003c\/li\u003e \u003cli\u003ePanel retrofits where matching amperage, voltage, and mounting style are critical for safe, code-compliant protection.\u003c\/li\u003e \u003cli\u003eMaintenance stock for service teams who need a dependable, ready-to-deploy 125A, 3-pole breaker that aligns with existing infrastructure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and installation notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your specific panel or disconnect housing. The most reliable reference for compatibility is the part number—HE3A125L. If your system requires a bolt-on, 3-pole device to interrupt 480V at 125A, this Siemens breaker is purpose-built to meet those exact requirements.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for best results\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEngage a licensed electrician to perform installation and ensure proper torque and secure mounting for bolt-on devices.\u003c\/li\u003e \u003cli\u003ePower must be isolated and locked out before service; verify voltage presence with appropriate testing equipment.\u003c\/li\u003e \u003cli\u003eKeep spare HE3A125L units on hand for planned maintenance to minimize downtime during panel upgrades or replacements.\u003c\/li\u003e \u003cli\u003eDocument the replacement with the part number to simplify future troubleshooting and compatibility checks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427518795938,"sku":"HE3A125L","price":510.0,"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-he3a125l-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}