{"product_id":"square-d-hja36125usyp","title":"Square D HJA36125USYP 125A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HJA36125USYP—a 125A, 3-pole, 600V circuit breaker engineered to deliver reliable overcurrent protection for three-phase power systems. With its Square D heritage, this device is built to stand up to demanding industrial and commercial applications, safeguarding motors, controls, and downstream equipment from faults and overloads.\u003c\/p\u003e \u003ch2\u003eWhat this breaker does\u003c\/h2\u003e\n\u003cp\u003eDesigned for three-phase distribution, this 125A circuit breaker interrupts current quickly to prevent damage when faults occur. The 3-pole configuration provides coordinated protection across all three lines, helping maintain system stability and reducing the risk of unbalanced loads. It’s a practical, plug-and-play solution for panels that require a 3-pole, 600V protective device.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\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\u003ePart number:\u003c\/strong\u003e HJA36125USYP\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eThree-phase feeders in industrial facilities—protects motors, pumps, conveyors, and control circuits\u003c\/li\u003e \u003cli\u003eCommercial HVAC systems and large equipment rooms that run on 3-phase power\u003c\/li\u003e \u003cli\u003eReplacement or upgrade projects in Square D panelboards and distribution gear\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eChoosing a 3-pole, 600V breaker like the HJA36125USYP simplifies panel design by providing unified protection for all three phases. Its 125 A rating makes it suitable for mid-size loads and motor circuits, helping prevent overheating and electrical damage during faults. By aligning with Square D protection strategies, it supports straightforward maintenance, consistent performance, and clearer fault isolation within your electrical system.\u003c\/p\u003e \u003ch3\u003eCompatibility and installation notes\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDesigned for Square D panels and distribution systems that accept 3-pole 600V protective devices\u003c\/li\u003e \u003cli\u003eVerify that your panel labeling matches the need for a 3-pole, 600V breaker and ensure proper mounting and torque during installation\u003c\/li\u003e \u003cli\u003eFollow all local electrical codes and safety procedures when integrating this breaker into active electrical panels\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eKeep a spare HJA36125USYP on hand for maintenance or panel upgrades to minimize downtime\u003c\/li\u003e \u003cli\u003ePlan for three-phase protection early in project design to ensure clean coordination across feeders and motors\u003c\/li\u003e \u003cli\u003eDocument the part number during asset tracking to streamline future replacements and panel servicing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423185260706,"sku":"HJA36125USYP","price":510.0,"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-hja36125usyp","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}