{"product_id":"square-d-hja36150sp","title":"Square D HJA36150SP 150A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D HJA36150SP 150A 3-Pole 600 V Circuit Breaker is a rugged, reliable protection device designed for three-phase electrical systems in demanding commercial and industrial environments. With a 150 A rating and a 600 V maximum, it provides fast, coordinated interruption to guard wiring, motors, and equipment from overloads and short circuits, helping to minimize downtime and electrical damage.\u003c\/p\u003e \u003cp\u003eKey specifications at a glance:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HJA36150SP\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 150 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\u003eConfiguration:\u003c\/strong\u003e 3-pole circuit protection for 3-phase systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters for your system\u003c\/p\u003e\n\u003cp\u003eIn a three-phase distribution network, a 3-pole breaker like the HJA36150SP ensures all live conductors are simultaneously protected, maintaining balanced protection across phases and providing a predictable fault response. The 600 V rating makes it suitable for higher-voltage feeders often found in industrial facilities, manufacturing lines, and large commercial installations. Choosing the exact OEM part helps preserve panel coordination, trip curves, and replacement compatibility, reducing the risk of misfits or non‑conforming substitutes.\u003c\/p\u003e \u003cp\u003eIdeal use cases\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtection for 3-phase feeders in industrial control panels and service entrances\u003c\/li\u003e \u003cli\u003eMotor feeder protection for pumps, compressors, conveyors, and HVAC equipment\u003c\/li\u003e \u003cli\u003ePanel upgrades and replacements that require an exact Square D specification\u003c\/li\u003e \u003cli\u003eMaintenance intervals where consistent OEM parts support reliable uptime\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eInstallation and practical considerations\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel or enclosure supports a 3-pole, 600 V-rated device and that the mounting style matches your current setup\u003c\/li\u003e \u003cli\u003eEnsure the downstream conductors and upstream protection are coordinated with the breaker’s trip characteristics\u003c\/li\u003e \u003cli\u003eFollow the manufacturer’s torque specifications and safety procedures during replacement or installation\u003c\/li\u003e \u003cli\u003eLabel circuits clearly to reflect the new protective device and maintain clear maintenance records\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat you get\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eOne Square D HJA36150SP 150A 3-Pole 600 V Circuit Breaker\u003c\/li\u003e \u003cli\u003eDesigned for compatibility with Square D panels and compatible enclosures (confirm your panel model for exact fit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423558291618,"sku":"HJA36150SP","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-hja36150sp","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}