{"product_id":"square-d-hja36125ua","title":"Square D HJA36125UA 125A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eProtect critical three-phase loads with a trusted name—Square D HJA36125UA. This 125 A, 3-pole, 600 V circuit breaker is designed for distribution panels in commercial and industrial settings, delivering reliable protection across all phases of a 600 V system. Its three-pole design ensures balanced interruption on each leg, reducing the risk of unbalanced faults and equipment damage.\u003c\/p\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HJA36125UA\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\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the Square D HJA36125UA\u003c\/h3\u003e\n\u003cp\u003eUnlike smaller single-pole devices, this three-pole breaker provides coordinated protection for three-phase circuits, which is essential for motors, compressors, and other balanced loads. The 125 A rating offers robust protection for mid-size equipment while enabling clean disconnection during a fault. Being part of the Square D family, it benefits from durable construction and compatibility with standard enclosures used in modern electrical distributions.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e3-phase power distribution in industrial facilities and large commercial spaces\u003c\/li\u003e \u003cli\u003eMain or feeder protection for equipment drawing up to 125 A per leg in 600 V circuits\u003c\/li\u003e \u003cli\u003eMotor and drive protection where balanced trip across all phases is essential\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation \u0026amp; compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel or enclosure supports 3-pole, 600 V circuit breakers and that the mounting style matches your equipment\u003c\/li\u003e \u003cli\u003eEnsure conductors are correctly sized for 125 A protection and that torque requirements follow manufacturer guidelines\u003c\/li\u003e \u003cli\u003eSchedule periodic inspections to confirm there are no signs of overheating, arcing, or wear on terminals\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCare and safety\u003c\/h3\u003e\n\u003cp\u003eUse proper protective equipment and follow lockout\/tagout procedures when servicing. Replace a breaker if it shows signs of wear, has tripped due to a fault that cannot be reset, or if the enclosure indicates overheating around the device.\u003c\/p\u003e \u003cp\u003eUpgrade your 3-phase protection with the Square D HJA36125UA 125A 3-Pole 600 V Circuit Breaker and enjoy reliable performance in demanding electrical environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423563370658,"sku":"HJA36125UA","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-hja36125ua","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}