{"product_id":"square-d-qja32150-150a-240v-3-pole-plug-in-circuit-breaker","title":"Square D QJA32150 - 150 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QJA32150 150 A, 240 V, 3-Pole Plug-In Circuit Breaker — a rugged, plug-in molded case breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Designed for residential, commercial, and light industrial electrical systems, this unit keeps power flowing safely by interrupting fault currents quickly and reliably.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and straightforward replacement, minimizing downtime during panel maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e offers stable, repeatable protection across varying loads, providing precise overload and instantaneous short-circuit protection when it’s needed most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e ideal for three-phase systems, ensuring balanced protection across all conductors in your panel or loadcenter.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e250 V-class performance with 240 V rating\u003c\/strong\u003e suitable for typical residential and light commercial service conditions, delivering robust protection where it matters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible mounting\u003c\/strong\u003e designed to work with matching Square D loadcenters and panelboards, helping maintain electrical system integrity and coordinated protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade reliability\u003c\/strong\u003e from a trusted name in electrical protection, engineered to withstand daily use in demanding environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eApplications and use cases\u003c\/h2\u003e\n\u003cp\u003eThis 150 A, 240 V, 3-pole plug-in breaker is purpose-built for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or retrofitting panelboards and loadcenters in residential, commercial, and light industrial settings.\u003c\/li\u003e \u003cli\u003eProviding branch circuit protection for large feeders and critical circuits that require dependable, fast-clearing protection against overcurrent and short circuits.\u003c\/li\u003e \u003cli\u003eReplacing aging or failed breakers with a ready-to-install, OEM-compatible unit that maintains system coordination and protection standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QJA32150\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Plug-in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and compatibility tips\u003c\/h2\u003e\n\u003cp\u003eFor best results, pair this QJA32150 with matching OEM loadcenters and panelboards from Square D to ensure proper fit, trip coordination, and seamless electrical protection. Its plug-in design is specifically intended to streamline swaps and panel upgrades, reducing commissioning time and minimizing panel exposure. When planning a replacement, verify that the panelboard is compatible with three-pole, 150 A plug-in breakers of the QJA series to maintain optimal performance and safety margins.\u003c\/p\u003e \u003cp\u003eWhether you’re modernizing a service panel, upgrading a commercial distribution panel, or outfitting a light industrial installation, the Square D QJA32150 delivers reliable protection with straightforward installation, consistent trip behavior, and OEM-grade compatibility. AmpState stocks this model to support quick sourcing and timely repairs, helping keep critical circuits protected when it matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355391742114,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_8343a188-9baa-4d51-a980-b517f1e45e1c.png?v=1764691752","url":"https:\/\/www.ampstate.com\/products\/square-d-qja32150-150a-240v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}