{"product_id":"square-d-j250s-circuit-breaker","title":"Square D | J250S | Circuit Breaker | 250A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D J250S Circuit Breaker is a rugged, OEM-provided overcurrent protection device engineered for demanding 600V environments. Identified by the part number J250S, this 250A, 3-pole breaker is built for maintenance, retrofit, and replacement projects where exact specifications matter and reliable protection is non-negotiable.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 250 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 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the J250S for your panel\u003c\/h3\u003e\n\u003cp\u003eThe J250S delivers precise fit and trip characteristics that align with Square D’s engineering standards, helping you avoid compatibility issues and unnecessary downtime. Its three-pole design ensures all three phases are disconnected simultaneously during a fault, enhancing safety and protecting equipment in 3‑phase power systems. This makes it an ideal choice for retrofit or replacement where OEM form factor and electrical ratings matter—the kind of reliability you rely on in critical electrical infrastructure.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service on existing 3‑phase panels rated for up to 600V\u003c\/li\u003e \u003cli\u003eRetrofits and replacements where a direct J250S match is required\u003c\/li\u003e \u003cli\u003eSpare part for field replacements to minimize downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit and compatibility\u003c\/h3\u003e\n\u003cp\u003eConfirm fit and ratings before ordering. The part number \u003cstrong\u003eJ250S\u003c\/strong\u003e is your best reference to ensure compatibility with your panel model and bus arrangement.\u003c\/p\u003e \u003ch3\u003ePractical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eKeep a labeled spare on hand in service stock for rapid replacement\u003c\/li\u003e \u003cli\u003eBefore installation, verify that your panel’s specifications align with the 250 A, 3‑pole, 600 V rating to ensure proper protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424441880738,"sku":"J250S","price":533.0,"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-j250s-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}