{"product_id":"siemens-marq-21-breaker-mcc-bucket-125-a-600-v-9-height-3-p-ampstate","title":"Siemens - Marq 21 - Breaker MCC Bucket - 125 A, 600 V, 9\" Height, 3 P | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Siemens Marq 21 Breaker MCC Bucket from AmpState — a purpose-built, OEM-grade solution tuned for industrial motor control applications that demand a 125 A, 600 V, 3-Pole configuration. Designed to integrate seamlessly with Siemens Marq 21 MCC lineups, this bucket enables reliable OEM replacement and straightforward retrofits, helping you maintain protection coordination and system performance with minimal downtime.\u003c\/p\u003e \u003ch3\u003eKey specifications and fit\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Marq 21\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Breaker MCC Bucket\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRating:\u003c\/strong\u003e 125 A, 600 V, 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBucket height:\u003c\/strong\u003e 9 inches\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e OEM replacement and retrofit for Marq 21 MCC panels\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this bucket matters\u003c\/h3\u003e\n\u003cp\u003eWhen you choose the Siemens Marq 21 MCC Breaker Bucket, you’re selecting a component engineered to preserve the exact electrical characteristics your protection schemes rely on. The 125 A, 600 V rating aligns with common industrial motors and feeders, while the 3-Pole design ensures synchronized control of all three phases. Its compact 9-inch bucket height fits into standard Marq 21 enclosures without sacrificing robust mechanical support or clearances, making field installation or replacement straightforward.\u003c\/p\u003e \u003ch3\u003eUse cases — where it shines\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eOEM replacement:\u003c\/strong\u003e Swap in a genuine Siemens bucket to restore original performance, ensuring compatible trip curves, contact ratings, and protection coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofit projects:\u003c\/strong\u003e Update older or mismatched MCC sections with a confirmed Marq 21-compatible bucket to maintain reliability and uniformity across your control panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance planning:\u003c\/strong\u003e Keep a ready-to-install spare on hand to minimize downtime during scheduled or unexpected outages.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSystem expansion:\u003c\/strong\u003e Add or reconfigure additional MCC buckets in existing Marq 21 architectures without re-engineering protective logic.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation tips and compatibility\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that the enclosure and busbar interfaces align with the Marq 21 MCC specifications to ensure smooth installation.\u003c\/li\u003e \u003cli\u003eTighten terminals to the manufacturer’s torque recommendations to maintain secure connections and reliable protection signaling.\u003c\/li\u003e \u003cli\u003ePair this bucket with matching Siemens protection devices and accessories to preserve coordinated protection across the drive and motor circuit.\u003c\/li\u003e \u003cli\u003eConsider having a spare bucket on hand for rapid replacements during maintenance windows or critical production hours.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cp\u003eElectrical engineers, maintenance technicians, OEM system integrators, and plant engineers who operate Siemens Marq 21 MCC panels and require dependable, directly compatible replacement components that keep motors protected and uptime high.\u003c\/p\u003e \u003ch3\u003eWhy AmpState\u003c\/h3\u003e\n\u003cp\u003eAmpState is a global source for Siemens MCC components, delivering genuine parts with reliable availability. The Marq 21 Breaker MCC Bucket combines Siemens’ engineering precision with AmpState’s commitment to quick, worldwide fulfillment, making it a practical choice for both new builds and retrofits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46337083343010,"sku":null,"price":7010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_model_90_95_95_marq_21_efdeec54-2741-4419-904d-92e6faa71472.jpg?v=1763779731","url":"https:\/\/www.ampstate.com\/products\/siemens-marq-21-breaker-mcc-bucket-125-a-600-v-9-height-3-p-ampstate","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}