{"product_id":"square-d-hja36125uh","title":"Square D HJA36125UH 125A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003eThe Square D HJA36125UH 125A 3-Pole 600 V Circuit Breaker is a sturdy, high-capacity protector built for demanding three-phase electrical systems. With a 125-amp current rating and a 600-volt maximum, it delivers reliable short-circuit and overload protection across three hot legs, helping safeguard wiring, devices, and equipment in commercial and light industrial environments. \u003cstrong\u003eKey specifications\u003c\/strong\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HJA36125UH\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 125 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003c\/ul\u003e Why this 3-pole breaker stands out\n\u003cul\u003e \u003cli\u003eThree-pole design provides synchronized protection for all three hot legs in a three-phase system, ensuring balanced interruption during fault events.\u003c\/li\u003e \u003cli\u003e125 A capacity makes it suitable for mid-to-large branch circuits and equipment feeders without compromising safety or performance.\u003c\/li\u003e \u003cli\u003e600 V rating broadens its applicability to higher-voltage panel configurations common in commercial and industrial settings.\u003c\/li\u003e \u003cli\u003ePart number HJA36125UH identifies a genuine Square D component, designed for compatibility with compatible Square D panels and accessories.\u003c\/li\u003e\n\u003c\/ul\u003e Ideal use cases\n\u003cp\u003eThis circuit breaker is well-suited for three-phase distribution boards, machine and equipment feeders, and service-disconnect applications where reliable 125 A protection is required in systems operating up to 600 V. It’s a practical choice for facilities upgrading or maintaining panels that demand robust, multi-pole protection without sacrificing space inside the enclosure.\u003c\/p\u003e How it helps your electrical system\n\u003cul\u003e \u003cli\u003ePrevents damage from overloads and short circuits by interrupting fault currents promptly, helping extend the life of conductors and downstream devices.\u003c\/li\u003e \u003cli\u003eEnsures coordinated protection across all three phases, contributing to safer startup and operation of three-phase equipment.\u003c\/li\u003e \u003cli\u003eProvides a reliable, OEM-branded solution (Square D) that supports straightforward replacement and compatibility within appropriate panels.\u003c\/li\u003e\n\u003c\/ul\u003e Practical considerations\n\u003cp\u003eBefore installation, verify that your panel or distribution board is compatible with HJA36125UH and designed to accept 3-pole 600 V devices. Follow standard electrical safety practices and installation guidelines to ensure proper fit and uninterrupted protection for your specific application.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423562813602,"sku":"HJA36125UH","price":8686.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36125uh","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}