{"product_id":"siemens-mbkqj3225-circuit-breaker","title":"Siemens | MBKQJ3225 | Circuit Breaker | 225A | 3-Pole | 240V | 10kA | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens MBKQJ3225 Circuit Breaker delivers dependable overcurrent protection for 240V distribution with a robust 225A rating. This 3-pole, bolt-on breaker is built for demanding retrofit, maintenance, and replacement projects where precise compatibility and rapid installation matter most.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 225A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting Capacity:\u003c\/strong\u003e 10kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e Part number MBKQJ3225\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose the MBKQJ3225 for your panel\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong precise siemens compatibility:\u003e Designed to align with Siemens bolt-on panel architectures, ensuring secure mounting and reliable fault protection in demanding environments.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong clear reference for matching parts:\u003e The MBKQJ3225 designation is the most reliable indicator of fit and ratings when sourcing replacements or retrofits.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrong high-load protection:\u003e 225A faults-capable current handling paired with a 10kA interruption rating helps minimize damage and downtime in commercial and light-industrial systems.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects where existing panels require upgrade to a higher-capacity, bolt-on breaker with solid fault current protection.\u003c\/li\u003e \u003cli\u003eMaintenance or replacement in 240V distribution circuits serving machinery, HVAC equipment, or factory feeders.\u003c\/li\u003e \u003cli\u003eElectrical service upgrades in commercial settings that demand a reliable, rugged bolt-on mounting solution.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat makes it stand out\u003c\/h2\u003e\n\u003cp\u003eThe MBKQJ3225 isn’t just a number on a label—it’s a purpose-built solution for secure, quick installation in environments where vibration or panel access constraints exist. The bolt-on design eliminates clip-based mounting issues and provides a solid, field-proven connection. With a 10kA interrupting capacity, it accommodates substantial fault currents, offering clear protection margins for critical loads on 240V systems.\u003c\/p\u003e \u003ch2\u003eInstallation and compatibility notes\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, verify fit and ratings against your panel and system requirements. The best reference for compatibility is the MBKQJ3225 part number, which aligns with Siemens’ bolt-on internal configurations and circuit protection specs.\u003c\/p\u003e \u003ch2\u003ePractical tips and insights\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePlan for secure torque on mounting bolts to maintain reliable electrical contact and minimize loosening from vibration.\u003c\/li\u003e \u003cli\u003eUse only in panels and bus configurations approved for bolt-on breakers with 3-Pole, 240V, 225A ratings.\u003c\/li\u003e \u003cli\u003eKeep a spare MBKQJ3225 on hand for future maintenance or rapid replacements to minimize downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425520701602,"sku":"MBKQJ3225","price":5761.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/siemens-mbkqj3225-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}