{"product_id":"square-d-bja36040-40a-600v-3-pole-plug-in-circuit-breaker","title":"Square D BJA36040 - 40 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D BJA36040—a 40 A, 600 V, 3-Pole Plug-In Molded Case Circuit Breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Available from AmpState, this breaker is purpose-built to integrate seamlessly with Square D systems, offering precise protection where it matters most.\u003c\/p\u003e \u003ch3\u003eWhy designers and electricians choose the Square D BJA36040\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e enables quick installation and effortless replacement, reducing downtime during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection performance, balancing sensitivity with reliability under varying load conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is designed to work with matching Square D load centers and panelboards, ensuring proper fit, trip characteristic alignment, and predictable operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where robust, localized protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\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 BJA36040\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 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 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 \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cp\u003eIn a three-phase panelboard or load center, the BJA36040 serves as a reliable main or feeder protection device for circuits that require a 40 A, 600 V rating. It’s ideal for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential settings that demand coordinated, easy-to-replace protection for multi-wire branch circuits\u003c\/li\u003e \u003cli\u003eSmall commercial spaces with lighting, HVAC, or receptacle loads that benefit from rapid plug-in servicing\u003c\/li\u003e \u003cli\u003eLight industrial applications where consistent trip behavior and quick replacement minimize downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat this means for your project\u003c\/h3\u003e\n\u003cp\u003eChoosing the Square D BJA36040 means opting for a proven protection solution that aligns with Square D’s ecosystem. Its temperature-and-magnetic trip mechanism is tuned for predictable responses to overloads and short circuits, helping safeguard wiring, devices, and equipment while maintaining system uptime. When you need a trustworthy, code-resilient breaker that blends with OEM load centers, this 3-pole plug-in option is purpose-built for peace of mind.\u003c\/p\u003e \u003ch3\u003eTips for optimal deployment\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify OEM compatibility with your Square D load center to ensure a secure plug-in connection and matched trip characteristics.\u003c\/li\u003e \u003cli\u003ePlan for quick replacement using the plug-in design to minimize panel downtime during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003eUse in scenarios where three-phase protection is required and a 40 A secondary protection level aligns with downstream circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355181240482,"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_61896801-5187-491d-a4f4-8acefc0b38cb.png?v=1764690153","url":"https:\/\/www.ampstate.com\/products\/square-d-bja36040-40a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}