{"product_id":"zinsco-q243090-90a-3p-240v-circuit-breaker","title":"Zinsco Q243090 Circuit Breaker, 90A, 3-Pole, 240V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Zinsco Q243090 is a rugged three-pole circuit breaker engineered for industrial electrical service, maintenance, and replacement projects. With a 90 A rating and a 240 V operating range, this unit powers demanding three-phase loads while protecting downstream equipment from overloads and faults. It’s part of the Case Breaker Q series, a family designed to work within Zinsco panels that support this form factor. To ensure a proper fit, verify compatibility using the part number Q243090 and your specific application requirements.\u003c\/p\u003e \u003ch3\u003eKey advantages\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design for three‑phase systems:\u003c\/strong\u003e Provides balanced protection across all conductors in industrial configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e90 A, 240 V specification:\u003c\/strong\u003e Suits heavy machinery, motors, compressors, and other high-demand equipment common in manufacturing and processing environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCase Breaker Q series compatibility:\u003c\/strong\u003e Designed to integrate with Zinsco Q-series panels, enabling straightforward replacement in compatible electrical rooms.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart-number clarity:\u003c\/strong\u003e The Q243090 designation helps you confirm exact fit for your panel and circuit requirements—minimal guesswork during procurement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing aging breakers in industrial switchgear and distribution panels.\u003c\/li\u003e \u003cli\u003eProtecting three-phase motors and heavy equipment in manufacturing facilities, process plants, and HVAC systems.\u003c\/li\u003e \u003cli\u003eMaintenance projects where compatibility with existing Q-series panels is essential to avoid mismatched components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 90 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Case Breaker Q\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Zinsco\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e Q243090\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility \u0026amp; installation notes\u003c\/h3\u003e\n\u003cp\u003eNotes: Verify fit by part number and application requirements. If you need help matching a part number or confirming compatibility, message us and we’ll assist in identifying the right solution for your panel configuration and load needs.\u003c\/p\u003e \u003cp\u003eIn short, the Zinsco Q243090 90A 3-pole 240V circuit breaker is a purpose-built choice for industrial environments where reliable protection, precise fit, and compatibility with the Case Breaker Q series matter most. Use it for safe, compliant, and predictable operation of your three-phase electric systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46414489125026,"sku":"Q243090","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/zinsco-q243090-90a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}