{"product_id":"siemens-mbkqj3a-225a-3-pole-circuit-breaker","title":"Siemens MBKQJ3 A - 225 A, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens MBKQJ3A — a 225 A, 3-pole molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for tough electrical environments, this breaker helps you maintain system uptime by preventing damage from overloads and quick-acting faults.\u003c\/p\u003e \u003cp\u003eWhy this breaker stands out:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e optimizes panel space, letting you fit more functionality into the same footprint without compromising protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across a range of loads and temperatures, with fast magnetic response for short-circuit conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e ideal for 3-phase systems, delivering coordinated protection across all conductors.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to pair with matching Siemens loadcenters and panelboards for streamlined replacement and dependable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication versatility\u003c\/strong\u003e suitable for residential, commercial, and light industrial electrical distributions, including main service disconnects and feeder protection in larger panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e MBKQJ3A\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 225 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\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 \u003cp\u003eDesigned for durability and predictable performance, the MBKQJ3A helps you minimize downtime and maximize protection for your electrical distribution. Whether you’re upgrading an aging panel, installing a new commercial loadcenter, or equipping a light industrial system, this Siemens breaker offers a reliable, matched solution that you can trust. \u003c\/p\u003e \u003cp\u003eSold by AmpState, this MBKQJ3A part brings genuine Siemens engineering to your project with straightforward fitment into compatible panelboards and loadcenters. For best results, confirm the part number MBKQJ3A aligns with your Siemens panel model and follow standard electrical safety practices during installation. If you’re optimizing a three-phase distribution that demands consistent protection across all conductors, the Siemens MBKQJ3A 225 A 3-pole molded case circuit breaker is a precise, dependable choice that helps you protect your equipment and keep power flowing where it matters.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355133825186,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-mbkqj3-a-225-3-pole-circuit-breaker-ampstate-breakers-756.webp?v=1788734081","url":"https:\/\/www.ampstate.com\/products\/siemens-mbkqj3a-225a-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}