{"product_id":"square-d-hja36125ur","title":"Square D HJA36125UR 125A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HJA36125UR 125A 3-Pole 600 V Circuit Breaker—a purpose-built protection device engineered for robust three-phase systems. This unit brings reliable interruption across all three phases when faults occur, helping safeguard personnel and equipment in busy commercial and light-industrial environments.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HJA36125UR\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\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eThe 3-pole design ensures simultaneous disconnection of all phases, which is critical for maintaining balanced loads and preventing damage to motors, drives, and other three-phase equipment. With a 125 A capacity, this breaker is well-suited for feeders and circuits that power mid-range industrial equipment or commercial systems, delivering dependable overload protection and a clear trip response when faults arise.\u003c\/p\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectricians performing upgrades or replacements in Square D panelboards and enclosures.\u003c\/li\u003e \u003cli\u003eFacilities managers protecting three-phase motor circuits, pumps, conveyors, and HVAC feeders.\u003c\/li\u003e \u003cli\u003eMaintenance teams looking for a straightforward, standard-spec replacement within three-pole, 600 V installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets it apart\u003c\/h3\u003e\n\u003cp\u003eUnlike generic single- or two-pole breakers, this Square D circuit breaker is designed for true three-phase protection, ensuring coordinated shutoff across all conductors. The HJA36125UR designation signals a precise fit for compatible Square D systems, offering consistent performance and reliable interruption in demanding environments.\u003c\/p\u003e \u003ch3\u003eUsage tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm your panel accepts three-pole 600 V protective devices of this specification before replacement or new installation.\u003c\/li\u003e \u003cli\u003eUse in three-phase feeder circuits where simultaneous tripping is essential to protect equipment and maintain system safety.\u003c\/li\u003e \u003cli\u003ePlan for future load changes by selecting a breaker that accommodates potential circuit expansion while preserving protection standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D HJA36125UR, you gain a dependable, industry-standard solution designed to protect 3-phase electrical systems up to 600 V. Install it where reliable, coordinated protection matters most, and keep your industrial or commercial operations running smoothly. Ready to secure your three-phase feeders with proven Square D performance? Add this 125 A, 3-pole, 600 V breaker to your setup today.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423561109666,"sku":"HJA36125UR","price":8686.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-hja36125ur-125a-3-pole-600-v-circuit-breaker-122.webp?v=1789314806","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36125ur","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}