{"product_id":"square-d-hlf36125-circuit-breaker","title":"Square D | HLF36125 | Circuit Breaker | 125A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HLF36125 Circuit Breaker—a purpose-built solution for robust, reliable protection in 3-phase, 600-volt electrical systems. This 125-amp, 3-pole breaker is designed for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\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 HLF36125\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntended Use:\u003c\/strong\u003e maintenance, retrofit, replacement in compatible Square D installations\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this breaker stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise compatibility:\u003c\/strong\u003e The HLF36125 is the best reference for matching panels and upstream protection in 3-phase 600V systems. Always confirm fit and ratings before ordering to avoid mismatches in service cabinets.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProven reliability:\u003c\/strong\u003e Square D's legacy in industrial electrical protection means predictable trip characteristics, consistent performance, and longer service life in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient replacement and retrofits:\u003c\/strong\u003e If you're upgrading or replacing a worn-out 125A, 3-pole load center or switchgear, this unit aligns with common Square D footprints and wiring conventions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eSpare or field replacement for 125A, 3-pole 600V circuits in commercial or industrial panels\u003c\/li\u003e \u003cli\u003eRetrofit projects upgrading legacy protection to a contemporary 3-phase 600V system\u003c\/li\u003e \u003cli\u003eMaintenance cycles where predictable electrical protection is critical for uptime\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical notes for choosing and using\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways verify panel compatibility using the catalog or panel labeling; the HLF36125 is the definitive reference for fitment.\u003c\/li\u003e \u003cli\u003ePlan for replacement sizing around load requirements and upstream protection coordination; 125A rating suits mid-range distribution feeders in medium-voltage installations.\u003c\/li\u003e \u003cli\u003eHandle with standard electrical safety procedures; follow the manufacturer’s installation manual for torque and termination guidelines.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D HLF36125, you’re choosing a time-tested protection device designed to keep your 3-phase, 600V systems safe, compliant, and efficiently managed. Whether you’re stocking a service van, outfitting a retrofit project, or replacing a worn-out breaker, this 125A, 3-pole circuit breaker delivers dependable performance when it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426667221154,"sku":"HLF36125","price":9860.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/square-d-hlf36125-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}