{"product_id":"eaton-fc3125-circuit-breaker","title":"Eaton | FC3125 | Circuit Breaker | 125A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eEaton FC3125 Circuit Breaker\u003c\/strong\u003e is a rugged, ready-to-retrofit solution for three‑phase electrical systems. With a 125A rating, 3‑pole configuration, and 600V capacity, this bolt‑on breaker is designed to slot into compatible Eaton panels and enclosures, helping you maintain safe, reliable power distribution during maintenance, retrofit, and replacement projects.\u003c\/p\u003e \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 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt‑On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Part number FC3125\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out for your project\u003c\/h3\u003e\n\u003cp\u003eWhen you're upgrading or replacing components in a three‑phase system, exact compatibility matters as much as robust protection. The FC3125 is specifically identified by its part number, making it a precise match for Eaton‑designed panels and accessories. Its bolt‑on design streamlines installation, reduces field adjustments, and supports quick, secure connections in demanding environments.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit of aging Eaton panels to restore reliable circuit protection on 3‑phase feeders\u003c\/li\u003e \u003cli\u003eMaintenance replacements where the exact FC3125 part is specified\u003c\/li\u003e \u003cli\u003eUpgrading or expanding service entrance or industrial control circuits in commercial\/industrial settings\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes it (uniquely) practical\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise compatibility:\u003c\/strong\u003e The FC3125 designation is the best reference for ensuring your replacement matches the panel’s mounting and rating requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient installation:\u003c\/strong\u003e Bolt‑on mounting lowers installation time and simplifies field servicing compared with other mounting styles.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear three‑phase protection:\u003c\/strong\u003e A 3‑pole configuration safeguards each phase, helping to prevent unbalanced loads and partial outages in 3‑phase systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eResidential to industrial applicability:\u003c\/strong\u003e While ideal for industrial panels and commercial equipment, its 600V rating covers a wide range of medium‑voltage setups common in plant rooms and data centers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation guidance\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your specific panel or enclosure. Use the FC3125 part number as the primary reference to ensure correct bolt‑on mounting and electrical characteristics. Always consult the panel’s installation manual for torque and connection guidelines, and verify that the surrounding equipment and wiring are rated for 600V and 125A service.\u003c\/p\u003e \u003ch3\u003eCare, maintenance, and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eInspect connections and mounting hardware during routine maintenance; ensure bolts remain torqued per manufacturer specifications.\u003c\/li\u003e \u003cli\u003eLook for signs of wear, corrosion, or overheating on the breaker body and terminals, and replace as needed to maintain reliable protection.\u003c\/li\u003e \u003cli\u003eKeep the surrounding panel area clean and dry to preserve contact integrity and electrical performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 125A\u003c\/li\u003e \u003cli\u003ePoles: 3‑Pole\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003eMounting: Bolt‑On\u003c\/li\u003e \u003cli\u003ePart reference: FC3125\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46427280343202,"sku":"FC3125","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\/eaton-fc3125-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}