{"product_id":"square-d-qba221501-150a-240v-2-pole-plug-in-circuit-breaker","title":"Square D QBA221501 - 150 A, 240 V, 2-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet a reliable power-safety component: the Square D QBA221501—a 150A, 240V, 2-pole plug-in molded case circuit breaker designed for dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Its fast plug-in connection means quicker installations and easier replacements, minimizing downtime in electrical panels.\u003c\/p\u003e\n\u003cp\u003eWith a thermal-magnetic trip unit, it delivers stable, repeatable protection—automatically responding to both overloads and short circuits to safeguard wiring and connected equipment without nuisance trips. This means your electrical system stays protected while maintaining reliable performance under varying load conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes this breaker stand out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for rapid installation and straightforward replacement in compatible panelboards and load centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip\u003c\/strong\u003e provides coordinated protection with predictable trip behavior, minimizing unnecessary outages.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole, 150A, 240V\u003c\/strong\u003e configuration tailored for feeding and protecting multi-wire branch circuits and main feeders common in residential and light commercial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is engineered to work with matching Square D load centers and the corresponding lineup of panelboards, ensuring proper fit and protection coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments, from home garages and retail spaces to small offices and service closets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: QBA221501\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 150A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 240V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 2\u003c\/li\u003e \u003cli\u003eMounting Style: Plug-in\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal use scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing breakers in residential service panels to support higher-demand circuits without rewiring panel infrastructure.\u003c\/li\u003e \u003cli\u003eProtecting branch circuits in light commercial spaces such as small offices, retail storefronts, or workshops where reliable 240V distribution is required.\u003c\/li\u003e \u003cli\u003eMaintaining load centers in mechanical rooms or equipment areas where quick replacement minimizes downtime during maintenance windows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePractical tips for installation and ongoing protection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEnsure you’re pairing the QBA221501 with a matching OEM load center or panelboard to guarantee proper fit and protection coordination.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices: power down the enclosure, verify absence of voltage, and secure the breaker firmly in the plug-in slot to maintain a solid electrical connection.\u003c\/li\u003e \u003cli\u003eUse this 150A, 240V breaker to protect feeders and multi-wire branch circuits where a two-pole design simplifies control and safety compared to single-pole arrangements.\u003c\/li\u003e \u003cli\u003eConsider future expansion: if you anticipate added loads in a space, this model provides a robust, straightforward upgrade path without changing panel architecture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDependable protection, quick serviceability, and OEM-aligned design—the Square D QBA221501 is built to keep your electrical systems safe, up and running, with less downtime and predictable protection performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355368312994,"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_a4a8ccd5-eb81-4023-9996-0139e565f530.png?v=1764691567","url":"https:\/\/www.ampstate.com\/products\/square-d-qba221501-150a-240v-2-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}