{"product_id":"square-d-ka361501021-circuit-breaker","title":"Square D | KA361501021 | Circuit Breaker | 150A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D KA361501021 Circuit Breaker: 150A, 3-Pole, 600V\u003c\/strong\u003e — a purpose-built protection device designed for demanding three-phase electrical systems. This 3-pole breaker delivers reliable overcurrent protection in industrial and commercial panels, helping to safeguard equipment, minimize downtime, and keep your operations running smoothly.\u003c\/p\u003e \u003cp\u003eKey advantages that set this unit apart:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage and voltage you can trust\u003c\/strong\u003e: 150A maximum current with a 600V operating rating, ideal for guarding large motors, compressors, and other high-demand loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design for balanced protection\u003c\/strong\u003e: Provides coordinated protection across all three phases in three-phase systems, reducing the risk of phase imbalances and unexpected trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear reference for compatibility\u003c\/strong\u003e: Part number KA361501021 is the definitive guide for retrofit, maintenance, and replacement projects. Use this reference to confirm fit with your Square D panels and assemblies.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance-friendly and ready for retrofit\u003c\/strong\u003e: Designed for straightforward replacement in existing electrical infrastructure, helping you streamline upgrades and material planning.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable, dependable construction\u003c\/strong\u003e: Built to withstand standard operating environments in commercial and industrial settings, delivering reliable protection when it matters most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho should consider this circuit breaker?\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eFacilities performing panel retrofits or capacity upgrades that require a compatible 3-pole, 150A, 600V protection device.\u003c\/li\u003e \u003cli\u003eMaintenance teams stocking spare components for quick-field replacements to minimize downtime.\u003c\/li\u003e \u003cli\u003eElectrical engineers specifying replacement parts for legacy Square D installations that demand exact part references.\u003c\/li\u003e \u003cli\u003eIndustrial environments with three-phase motors, conveyors, HVAC systems, and other high-load equipment needing robust overcurrent protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical use cases and benefits\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofit projects\u003c\/strong\u003e: Swap in safely into existing equipment racks where the KA361501021 match is required, preserving system coordination and trip characteristics.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePreventive protection\u003c\/strong\u003e: Use in panels supplying demanding loads to prevent overloads, reduce overheating, and extend component life.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpare for reliability\u003c\/strong\u003e: Keep a ready-to-install backup on hand for critical assemblies in production lines or data centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompliance-ready reference\u003c\/strong\u003e: Use the part number KA361501021 as the primary compatibility reference during documentation and procurement checks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings before ordering\u003c\/strong\u003e; verify that your enclosure, bus stabs, and mounting arrangement align with the KA361501021 specifications.\u003c\/li\u003e \u003cli\u003eUse the part number KA361501021 as the primary reference when checking schematics, bill of materials, and panel documentation.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety procedures during installation, including de-energizing the system and isolating circuits before replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn short, the Square D KA361501021 150A 3-Pole 600V circuit breaker is a deliberate choice for professionals who value precise compatibility, solid protection, and dependable performance in three-phase electrical systems. Whether you’re upgrading a panel, stocking up for maintenance, or replacing a worn-out breaker, this unit delivers the reliability and alignment you need to keep critical equipment protected and operating at peak efficiency.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426634256546,"sku":"KA361501021","price":510.0,"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-ka361501021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}