{"product_id":"square-d-kc341501021-circuit-breaker","title":"Square D | KC341501021 | Circuit Breaker | 150A | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D KC341501021 Circuit Breaker\u003c\/strong\u003e is a rugged three-pole protection device designed for 480-volt, three-phase electrical systems. Engineered for maintenance, retrofit, and replacement projects where exact specifications matter, this 150A breaker ensures reliable overcurrent protection for demanding equipment and industrial circuits.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e KC341501021\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtect three-phase loads in commercial or industrial panels that operate at 480V, reducing the risk of equipment damage from overcurrent events.\u003c\/li\u003e \u003cli\u003eMaintenance and retrofit projects where matching specs are essential to maintain system reliability and continuity.\u003c\/li\u003e \u003cli\u003eReplacement for failed or obsolete breakers within compatible Square D panels, helping you restore service quickly without compatibility guesswork.\u003c\/li\u003e \u003cli\u003eProtection for heavy machinery, HVAC systems, pumps, and motors that run on 480V three-phase power, ensuring stable operation and safety margins.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eBuying guidance and compatibility\u003c\/h3\u003e\n\u003cp\u003eImportant: Confirm fit and ratings before ordering. The KC341501021 part number is the best reference for compatibility with your Square D panel or switchgear. When selecting this breaker, have your panel model and catalog information on hand to ensure seamless replacement or retrofit.\u003c\/p\u003e \u003ch3\u003eInstallation, safety, and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical work should be performed by a licensed professional to ensure proper installation and compliance with safety standards.\u003c\/li\u003e \u003cli\u003eVerify that your panel is compatible with a 3-Pole, 480V protection device and that the electrical rating matches the circuit requirements.\u003c\/li\u003e \u003cli\u003ePower down the system, follow lockout\/tagout procedures, and consult the manufacturer’s installation guidelines during replacement or retrofitting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426632749218,"sku":"KC341501021","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-kc341501021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}