{"product_id":"qb24370","title":"Zinsco QB24370 - 70A, 3-Pole, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Zinsco QB24370—a 70A, 3-pole circuit breaker engineered for dependable overcurrent protection in demanding electrical distributions. With its three-pole design tailored for three-phase systems, this breaker delivers coordinated protection for feeders and loads across panelboards, switchboards, and control panels.\u003c\/p\u003e \u003cp\u003eDesigned for industrial, commercial, and OEM applications, the QB24370 simplifies protection strategy in distribution panels and motor control centers. It provides robust, reliable operation for high-current circuits, helping you minimize downtime and safeguard equipment such as motors, conveyors, HVAC gear, and large lighting installs.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design for balanced three-phase protection\u003c\/strong\u003e—safely guards all three phases with a single device.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e70A current rating\u003c\/strong\u003e—well-suited for heavy-load feeders without unnecessary nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e—fits standard distribution panels, switchboards, and control panel assemblies used in industrial and commercial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStreamlined protection\u003c\/strong\u003e—reduces wiring complexity and component count by combining multiple protective functions into one breaker.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable construction for demanding environments\u003c\/strong\u003e—built to withstand the rigors of daily operation in distribution and motor control centers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 70A\u003c\/li\u003e \u003cli\u003ePoles: 3-Pole\u003c\/li\u003e \u003cli\u003eBreaker type: Circuit Breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial motor control centers needing reliable three-phase protection for heavy equipment\u003c\/li\u003e \u003cli\u003ePanelboards and switchboards in manufacturing lines and processing facilities\u003c\/li\u003e \u003cli\u003eCommercial HVAC and large machinery feeders requiring robust overcurrent protection\u003c\/li\u003e \u003cli\u003eOEM equipment designs that require a compact, integrated three-phase breaker solution\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose the Zinsco QB24370? It delivers a purpose-built solution for three-phase circuits where dependable protection and quick fault clearance are critical. Instead of juggling multiple single- or two-pole devices, you get a single, coordinated breaker that protects all three phases, helping you maintain safer operation and faster restoration after a fault. Whether you’re upgrading existing distribution infrastructure or equipping a new installation, the QB24370 is a practical, high-value choice for reliable three-phase protection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Zinsco","offers":[{"title":"Default","offer_id":46390797435042,"sku":"QB24370","price":1036.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_432ffc65-db3e-484d-bdaf-69c038a5dccb.png?v=1765380014","url":"https:\/\/www.ampstate.com\/products\/qb24370","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}