{"product_id":"square-d-bja36125-125a-600v-3-pole-plug-in-circuit-breaker","title":"Square D BJA36125 - 125 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D BJA36125—a 125 A, 600 V, 3-pole plug-in molded case circuit breaker designed to deliver reliable branch circuit protection for panelboards and load centers. Built for fast, confident installations and easy replacements, this breaker helps keep commercial and light industrial electrical systems running smoothly under demanding loads and occasional surges.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and straightforward replacements, minimizing downtime during panel upgrades or service calls.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines precise thermal overload protection with instantaneous magnetic trip for short-circuit events, delivering stable, repeatable protection across a wide range of operating conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e tailored for three‑phase systems, making it ideal for panelboards and load centers that feed motors, compressors, and other three‑phase equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e125 A, 600 V rating\u003c\/strong\u003e provides robust protection for heavy-load circuits while maintaining a compact molded‑case footprint.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e engineered to drop into matching Square D load centers and panelboards, ensuring clean integration and reliable performance with existing equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in molded case construction\u003c\/strong\u003e combines ruggedness with serviceability, allowing quick field replacements without disrupting surrounding circuitry.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where dependable overcurrent and short‑circuit 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 BJA36125\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 125 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\u003eUse cases and practical benefits\u003c\/h3\u003e\n\u003cp\u003eWhether you’re upgrading an aging panel, expanding a service, or replacing a failed breaker, the BJA36125 provides a reliable solution for three‑phase feeders and motor circuits. Its plug‑in design reduces installation time and minimizes wiring complexity, while the thermal‑magnetic trip ensures protection remains consistent even as ambient temperatures rise or loads fluctuate. This breaker is especially well-suited for commercial spaces, light industrial environments, and any application that relies on stable protection for 3‑phase equipment up to 600 V and 125 A.\u003c\/p\u003e \u003ch3\u003eWhy choose this breaker\u003c\/h3\u003e\n\u003cp\u003eChoosing a Square D BJA36125 means opting for compatibility with Square D OEM panels, a proven trip mechanism, and a plug-in format that supports fast servicing. The 3‑pole configuration aligns with three‑phase systems, while the 125 A rating covers substantial feeders and motor circuits without oversizing equipment. It’s a practical, durable choice for technicians who value quick maintenance, precise protection, and seamless integration with existing Square D installations.\u003c\/p\u003e \u003ch3\u003eTips for installation and care\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility with the BJA36125 before installation to ensure a proper fit and listing alignment.\u003c\/li\u003e \u003cli\u003ePower down the panel and follow lockout\/tagout procedures prior to service or replacement.\u003c\/li\u003e \u003cli\u003eFor best results, replace like-for-like breakers in OEM panels to maintain coordinated protection and trip characteristics.\u003c\/li\u003e \u003cli\u003ePeriodically inspect connections and mounting to prevent loose contacts, which can affect protection performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355182944418,"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_265cf028-dade-4575-8171-79a25595c662.png?v=1764690161","url":"https:\/\/www.ampstate.com\/products\/square-d-bja36125-125a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}