{"product_id":"square-d-kcp34090-circuit-breaker","title":"Square D | KCP34090 | Circuit Breaker | 90A | 3-Pole | 480V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D KCP34090 circuit breaker — a precisely engineered protection device built for demanding electrical environments. This 90 A, 3-pole unit is rated for 480 V, making it an ideal choice for three-phase power distribution in industrial and commercial settings where reliability matters.\u003c\/p\u003e \u003cp\u003eDesigned for maintenance, retrofit, and replacement projects where exact specifications are non-negotiable, the KCP34090 delivers dependable protection without guesswork. The part number itself is the best reference for compatibility, so you can be confident you’re selecting the correct device for your panel.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: KCP34090 — primary reference for exact compatibility\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 90 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 480 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest use\u003c\/strong\u003e: maintenance, retrofit, and replacement in systems requiring the KCP34090 specification\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility tip\u003c\/strong\u003e: Confirm fit and ratings before ordering; the part number is your most reliable anchor\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy a 3-pole, 480V breaker matters: in a three-phase system, a 3-pole device ensures all phases are protected and disconnected simultaneously, reducing the risk of partial faults that can damage motors, drives, and feeders. The 90 A rating places it in a practical range for mid-size industrial panels and heavier commercial circuits, helping you balance protection with available capacity.\u003c\/p\u003e \u003cp\u003eIdeal use cases include:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eReplacing a failed breaker in industrial control panels, switchgear, or motor control centers operating at 480 V three-phase\u003c\/li\u003e \u003cli\u003eRetrofits that require exact 90 A, 3-pole, 480 V specifications to maintain protection coordination\u003c\/li\u003e \u003cli\u003eService entrances and distribution panels in manufacturing facilities, warehouses, and large commercial electrical rooms\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDistinctive value comes from exact specification alignment and the trusted performance behind Square D protection products. By choosing the KCP34090, you’re aligning with a proven solution that supports safer shutdowns, predictable protection, and smoother maintenance workflows — all while keeping your system consistent with existing protection schemes.\u003c\/p\u003e \u003cp\u003eIf your project or panel calls for a 90 A, 3-Pole, 480 V circuit breaker with the precise KCP34090 reference, this Square D unit is designed to meet that need with clarity and reliability, helping you minimize downtime and keep critical equipment protected.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426422083746,"sku":"KCP34090","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/square-d-kcp34090-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}