{"product_id":"square-d-hja36150u31xaabcsk","title":"Square D HJA36150U31XAABCSK 150A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D HJA36150U31XAABCSK\u003c\/strong\u003e is a robust 150 A, 3-pole circuit breaker designed for serious three-phase protection in industrial and commercial panels. With a 600 V rating, it provides reliable interruption for higher-voltage distribution environments, helping to keep equipment and personnel safe during fault conditions.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 150 A\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003ePart number: HJA36150U31XAABCSK\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eThis 3-pole design is purpose-built for balanced protection across all phases in three-phase systems. By tripping all live conductors together, it minimizes the risk of phase-to-phase faults and protects motors, pumps, conveyors, and other heavy loads from dangerous overcurrent events. The Square D lineage behind HJA36150U31XAABCSK is known for consistent performance in demanding electrical environments, making maintenance and panel upgrades more predictable and straightforward.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtection for three-phase motors and equipment in commercial or industrial panels\u003c\/li\u003e \u003cli\u003eMain disconnect or feeder protection in distribution or service panels rated up to 600 V\u003c\/li\u003e \u003cli\u003eReplacement or upgrade for legacy panelboard configurations that require a 150 A, 3-pole solution\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and practical considerations\u003c\/h3\u003e\n\u003cp\u003eWhen selecting this breaker, verify that your Square D panel and enclosure are compatible with the HJA series and that mounting and bus connections align with your installation. For optimal performance, install in a suited panelboard designed to accommodate 3-pole, 150 A protection devices and follow all manufacturer guidelines for safe handling and secure mounting. This part is specifically identified by its part number, \u003cem\u003eHJA36150U31XAABCSK\u003c\/em\u003e, ensuring you’re pairing the exact rating and configuration needed for your three-phase protection strategy.\u003c\/p\u003e \u003cp\u003eIn short, the Square D HJA36150U31XAABCSK offers focused, reliable overcurrent protection for 3-phase systems up to 600 V, making it a solid choice for engineers and technicians looking to safeguard critical equipment and maintain uptime in demanding electrical environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423183720610,"sku":"HJA36150U31XAABCSK","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-hja36150u31xaabcsk-150a-3-pole-600-v-circuit-breaker-634.webp?v=1789280016","url":"https:\/\/www.ampstate.com\/products\/square-d-hja36150u31xaabcsk","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}