{"product_id":"eaton-hjd3125-125a-600v-3-pole-circuit-breaker","title":"Eaton HJD3125 - 125 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Eaton HJD3125 - 125A, 600V, 3-Pole Circuit Breaker, the trusted solution for dependable branch-circuit protection in panelboards and load centers. Available through AmpState, this molded-case breaker is engineered to safeguard circuits and equipment from overcurrent and short circuits with consistent performance.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design:\u003c\/strong\u003e Optimizes panel space, making it easier to fit into tight panel layouts without compromising protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection by reacting to both overload and short-circuit events, helping prevent nuisance trips while ensuring quick response when faults occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration:\u003c\/strong\u003e Provides reliable three-phase protection for commercial and light industrial systems, supporting balanced protection across all phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e125A at 600V rating:\u003c\/strong\u003e Suitable for a wide range of branch circuits and motor-control applications common in medium-demand environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-load center compatibility:\u003c\/strong\u003e Designed to pair with matching Eaton OEM load centers and panelboards, reducing installation headaches and ensuring proper fitment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e Ideal for residential, commercial, and light industrial projects where space efficiency and dependable protection matter.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRugged, dependable Eaton engineering:\u003c\/strong\u003e Built to withstand daily electrical demand and provide long service life in demanding conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis HJD3125 device is purpose-built to answer common questions like “Is there a compact 3-pole breaker for a 125A, 600V panel?” and “Will this fit my OEM panel center?” The answer is yes—with a precise fit, reliable protection, and straightforward integration into existing or new panelboards. Whether you’re upgrading a panel, wiring a new 3-phase rack, or stocking a spare for quick maintenance, this breaker delivers predictable performance when it matters most.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecifications at a glance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 125A\u003c\/li\u003e \u003cli\u003eVoltage rating: 600V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349599244450,"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_55866844-9faa-4a24-83f3-729ed06d8ac6.png?v=1764150934","url":"https:\/\/www.ampstate.com\/products\/eaton-hjd3125-125a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}