{"product_id":"square-d-qja221504-circuit-breaker","title":"Square D | QJA221504 | Circuit Breaker | 150A | 2-Pole | 240V | 100kA","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QJA221504 Circuit Breaker—a purpose-built protective device for demanding 240V circuits. With a 150A rating and 2-pole design, this breaker delivers solid, reliable protection for high-load panels, backed by a robust 100kA interrupting capacity. Built for maintenance, retrofit, and replacement applications, it’s crafted to meet exacting specifications where compatibility is non‑negotiable.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting Capacity:\u003c\/strong\u003e 100 kA\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this model matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePart number QJA221504 is the clearest reference for compatibility—use it to verify fit with your Square D panel and system requirements.\u003c\/li\u003e \u003cli\u003eDesigned to withstand fault conditions up to 100kA at 240V, helping protect wiring, feeders, and downstream devices from overcurrent events.\u003c\/li\u003e \u003cli\u003eSpecifically suited for retrofit and replacement projects where the exact QJA-series form factor and trip characteristics are required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or outdated breaker in commercial or light-industrial panels that call for a 150A, 2-pole, 240V protection device.\u003c\/li\u003e \u003cli\u003eRetrofits that upgrade safety margins for high-load circuits feeding motors, reactors, or large distribution feeders.\u003c\/li\u003e \u003cli\u003eMaintenance inventories where having the exact matching part number minimizes downtime and misfits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat sets it apart\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eExact alignment with Square D panel systems that require QJA-type breakers, ensuring proper mounting, trip curves, and electrical clearance.\u003c\/li\u003e \u003cli\u003eClear, supplier-referenced specifications (150A, 2-Pole, 240V, 100kA) that translate into predictable protection performance and easier planning for replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical notes for installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cem\u003econfirm fit and ratings before ordering\u003c\/em\u003e to ensure compatibility with your panel model and application.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices: power down, verify labeling, and install in accordance with local codes and panel instructions.\u003c\/li\u003e \u003cli\u003eKeep the QJA221504 as a reliable, on-hand replacement part in environments where high-current protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424778473634,"sku":"QJA221504","price":3468.0,"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-qja221504-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}