{"product_id":"eaton-hjd3125l-125a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton HJD3125L - 125 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HJD3125L is a 125A, 600V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built to withstand demanding electrical environments, this unit pairs solid mechanical mounting with precise protection to keep your distribution system running smoothly.\u003c\/p\u003e \u003ch3\u003eWhy the Eaton HJD3125L stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, reducing the risk of loose terminations and intermittent trips in crowded panels or spaces with vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance, automatically adapting to overloads and short circuits for reliable fault clearing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e supports three-phase circuits, making it an ideal choice for commercial and light industrial distribution where balanced power is essential.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible integration\u003c\/strong\u003e is designed to work with matching Eaton OEM loadcenters and panelboards, enabling straightforward retrofits or installations without compatibility guesswork.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial electrical installations requiring robust branch-circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HJD3125L\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 125A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\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\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cp\u003eInstall the Eaton HJD3125L in panelboards and loadcenters that serve three-phase equipment, such as motors, pumps, and industrial lighting, where reliable protection and secure mounting are critical. It’s well-suited for panelboard upgrades in existing Eaton systems, retrofit projects in commercial spaces, and new installations that require a durable, bolt-on protection solution.\u003c\/p\u003e \u003ch3\u003eWho benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical contractors handling panelboard renovations or new builds\u003c\/li\u003e \u003cli\u003eFacility managers overseeing multifamily, commercial, or light industrial buildings\u003c\/li\u003e \u003cli\u003eEngineers designing three-phase distribution for reliable fault protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and best practices\u003c\/h3\u003e\n\u003cp\u003eFor best results, follow OEM guidelines when wiring and mounting the HJD3125L. Use the bolt-on procedure to secure a tight, vibration-free connection and verify compatibility with your existing OEM panelboard or loadcenter to ensure seamless performance.\u003c\/p\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cp\u003eBy combining a rugged bolt-on design with a precise thermal-magnetic trip, the Eaton HJD3125L minimizes nuisance trips while delivering fast protection against overloads and short circuits. This translates to reduced downtime, protected equipment, and a safer, more reliable electrical distribution system in residential, commercial, and light industrial settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349599277218,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_a9bc5d3a-015a-4e4e-86ef-e09e87db3c6a.png?v=1764150935","url":"https:\/\/www.ampstate.com\/products\/eaton-hjd3125l-125a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}