{"product_id":"square-d-hda36125sl","title":"Square D HDA36125SL 125A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D HDA36125SL—a rugged 125A, 3-pole circuit breaker built for demanding three-phase power distributions. With a 600 V rating, this unit is designed to reliably protect feeders and large loads in commercial and industrial panels, MCCs, and other distribution setups. Its compact, sturdy construction is engineered to withstand the rigors of everyday electrical service while delivering dependable overcurrent protection.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HDA36125SL\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 \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cp\u003eThis 3-pole design is purpose-built for three-phase systems, enabling synchronized disconnection across all phases for enhanced safety and system protection. The 125 A rating makes it ideal for mid-to-large feeders, motor circuits, and other substantial loads often found in manufacturing floors, large HVAC installations, and distribution panels. With a 600 V maximum, it aligns with common industrial power standards, ensuring compatibility with a wide range of equipment and panel enclosures.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eProtection for three-phase feeders in industrial control panels and motor control centers\u003c\/li\u003e \u003cli\u003eBack-up protection for commercial electrical rooms that distribute heavy loads\u003c\/li\u003e \u003cli\u003eReplacement or upgrade in existing Square D panel systems to maintain consistent protection and performance\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat you gain in practical terms\u003c\/h2\u003e\n\u003cp\u003eReliable overcurrent protection translates to fewer nuisance trips and safer shutdowns when faults occur. The HDA36125SL is designed to integrate smoothly with Square D distribution equipment, helping you maintain a cohesive, code-compliant electrical backbone. By safeguarding heavy-load circuits, it helps minimize downtime and equipment damage, supporting longer equipment life and improved system reliability.\u003c\/p\u003e \u003ch2\u003eInstallation and care\u003c\/h2\u003e\n\u003cp\u003eInstallations should be performed by a qualified electrician in accordance with local electrical codes and the manufacturer’s guidelines. Ensure proper mounting within suitable enclosures and verify compatibility with your existing Square D components for a seamless, dependable protection solution.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e This unit is part of the Square D product family, specifically engineered to work with three-phase distribution environments and Square D panels. If your system uses a 3-phase 600 V distribution, the HDA36125SL offers a direct, reliable protection option with straightforward integration into your current electrical infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46423575003298,"sku":"HDA36125SL","price":5864.0,"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-hda36125sl","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}