{"product_id":"square-d-hja36125spyp","title":"Square D HJA36125SPYP 125A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D HJA36125SPYP 125A 3-Pole 600 V Circuit Breaker is a dedicated 3-phase protective device designed to safeguard larger electrical feeders and machinery. With a 125-amp rating and three poles, this breaker handles multi‑phase loads up to 600 V, providing reliable interruption during overloads or faults in commercial or light industrial environments. Part number HJA36125SPYP ensures precise ordering and cross‑reference in your Square D inventory.\u003c\/p\u003e \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 (three-pole for 3-phase circuits)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e up to 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HJA36125SPYP\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal for protecting mid to large 3‑phase feeders, this breaker is well-suited for protecting motors, compressors, conveyors, and other heavy equipment in commercial facilities, manufacturing lines, or data center support infrastructure. The 3-pole configuration helps ensure balanced protection across all phases, reducing the risk of overheating and unsymmetrical faults that can stress wiring and equipment.\u003c\/p\u003e \u003cp\u003eKey use cases and scenarios:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFeeder protection for 3‑phase motors and equipment in workshops, manufacturing floors, or HVAC systems\u003c\/li\u003e \u003cli\u003ePrimary protection point in panelboards where three-phase distribution is required\u003c\/li\u003e \u003cli\u003eReplacement for like‑for‑like 125 A, 3‑pole, 600 V breakers in existing Square D installations\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this Square D model over alternatives? It delivers a precise 125 A protection level for 3‑phase circuits at up to 600 V, matching the needs of mid‑capacity industrial loads while staying within Square D’s trusted legacy for reliability and compatibility with Square D panels and bus systems. When selecting, confirm panel compatibility and ensure a like‑for‑like replacement to maintain system safety and electrical code compliance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423186047138,"sku":"HJA36125SPYP","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-hja36125spyp","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}