{"product_id":"siemens-marq-21-breaker-mcc-bucket-250-a-480-v-30-height-3-p-ampstate","title":"Siemens - Marq 21 - Breaker MCC Bucket - 250 A, 480 V, 30\" Height, 3 P | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens Marq 21 Breaker MCC Bucket — a purpose-built component tailored for demanding industrial motor control centers. Designed for 250 A at 480 V in a precise 3-pole configuration, this 30-inch bucket integrates seamlessly into Siemens Marq 21 MCC lineups, delivering reliable control and straight‑forward OEM replacement or retrofit upgrades.\u003c\/p\u003e \u003ch2\u003eKey features that matter in the field\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact OEM compatibility:\u003c\/strong\u003e Engineered to fit Siemens Marq 21 MCC systems, ensuring proper electrical alignment and mechanical fit without custom modifications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity performance:\u003c\/strong\u003e Rated for 250 A at 480 V across 3 poles, supporting robust motor control for demanding workloads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStandardized form factor:\u003c\/strong\u003e 30\" bucket height matches common MCC frame dimensions, simplifying installation and inventory planning.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMotor control center readiness:\u003c\/strong\u003e Specifically built for Breaker MCC configurations, enabling quick replacement in active facilities with minimal downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVerified for retrofit and OEM replacement:\u003c\/strong\u003e Ideal for updating aging MCCs or priming new installations that demand Siemens’ Marq 21 architecture.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGlobal availability through AmpState:\u003c\/strong\u003e Sourced and supported by AmpState’s worldwide network of Siemens MCC components, ensuring supply continuity and service support.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat problems does it solve?\u003c\/h2\u003e\n\u003cp\u003eIn busy industrial environments, MCC downtime can ripple through production lines. This Marq 21 Breaker MCC Bucket delivers a drop-in retrofit option that preserves existing wiring harnesses and frame interfaces while delivering renewed switching capability at 250 A\/480 V. Its 3‑pole design supports balanced, three-phase control, helping you maintain stable motor starting and protection. With exact Marq 21 compatibility, you reduce commissioning time and avoid tricky modifications that can introduce risk.\u003c\/p\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003e• OEM replacement in active Siemens Marq 21 MCC installations, preserving original design intent and electrical characteristics.\u003c\/p\u003e\n\u003cp\u003e• Retrofit projects upgrading aging MCC bays to maintain performance and reliability without replacing the entire cabinet.\u003c\/p\u003e\n\u003cp\u003e• New builds requiring a 250 A, 480 V, 3‑pole bucket within the Marq 21 family, offering a proven path to scalable motor control.\u003c\/p\u003e \u003ch2\u003eHow it compares and why this choice stands out\u003c\/h2\u003e\n\u003cp\u003eCompared with generic MCC buckets, this Siemens Marq 21 bucket is purpose-built for the Marq 21 lineup, matching both electrical specifications and mounting geometry. The 30\" bucket height aligns with standard MCC frames, reducing the need for custom enclosures or adapters. When you pair this bucket with AmpState’s global supply network, you gain confidence in availability, authentic Siemens quality, and service support to keep downtime to a minimum.\u003c\/p\u003e \u003ch2\u003ePractical tips for installation and maintenance\u003c\/h2\u003e\n\u003cp\u003eBefore installation, confirm the MCC frame compatibility and pole configuration aligns with a 250 A, 480 V, 3‑pole setup. Use the bucket’s 30\" height as a baseline for cabinet clearance and downstream connections. For retrofit scenarios, map existing wiring and protective devices to ensure seamless integration with current protection schemes and control circuits. Regularly inspect contact surfaces and interlocks during routine maintenance to preserve reliable switching performance.\u003c\/p\u003e \u003ch2\u003eWhat you get\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eSiemens Marq 21 Breaker MCC Bucket, 250 A, 480 V, 3-Pole\u003c\/li\u003e \u003cli\u003eBucket height: 30 inches\u003c\/li\u003e \u003cli\u003eDesigned for OEM replacement and retrofit within Siemens Marq 21 MCC lineups\u003c\/li\u003e \u003cli\u003eAvailable through AmpState, a global supplier of Siemens MCC components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46337294074018,"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_4e6dc383-778c-4a3f-8ad6-9e28e0a2a559.jpg?v=1763783357","url":"https:\/\/www.ampstate.com\/products\/siemens-marq-21-breaker-mcc-bucket-250-a-480-v-30-height-3-p-ampstate","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}