{"product_id":"siemens-marq-21-breaker-mcc-bucket-300-a-480-v-18-height-3-p-ampstate","title":"Siemens - Marq 21 - Breaker MCC Bucket - 300 A, 480 V, 18\" Height, 3 P | AmpState","description":"\u003cdiv\u003eSiemens Marq 21 Breaker MCC Bucket meets the demands of demanding industrial motor control environments with a precise 300 A, 480 V, 3-pole configuration. Designed to drop into Siemens Marq 21 MCC frames, this 18-inch-tall bucket is built to support reliable, high‑performance power delivery for large motors and heavy equipment. Key specifications at a glance\n- Brand\/Series: Siemens Marq 21\n- Configuration: Breaker MCC Bucket\n- Rating: 300 A, 480 V, 3-Pole\n- Bucket Height: 18\"\n- Applications: OEM replacement and retrofit within Marq 21 MCC lineups Why this bucket stands out\n- Genuine fit for Siemens Marq 21 MCC systems, ensuring seamless integration with existing frames and electrical architecture.\n- High-capacity 300 A, 480 V rating tailored for demanding three-phase motor loads in manufacturing, process plants, and industrial facilities.\n- Ideal for OEM replacements and retrofits, helping you modernize or restore a critical MCC without a full enclosure redesign.\n- Compact 18\" bucket height provides a practical, space-conscious solution that fits standard Marq 21 footprints while maintaining accessible wiring and terminations. Who it's for and how it helps\n- Maintenance engineers and plant managers upgrading aging MCCs or standardizing on Siemens components.\n- OEMs performing retrofit projects that require precise compatibility with the Marq 21 series.\n- Contractors and integrators seeking a reliable, pre‑tested MCC bucket that aligns with existing Siemens infrastructure. What problems it solves\n- Reduces downtime by enabling the use of a trusted Siemens component in repairs and upgrades.\n- Simplifies procurement and installation for Marq 21 MCC systems with a dedicated, matching breaker bucket.\n- Provides a clear path for capacity upgrades or configuration changes in motor control applications without altering other MCC modules. Practical tips and considerations\n- Verify the Marq 21 frame compatibility and confirm the 18\" bucket height matches your enclosure configuration.\n- Ensure your motor circuits require a 300 A, 480 V, 3-Pole setup to maximize this bucket’s performance.\n- Plan replacement alongside compatible bus interfaces and cabling lengths to minimize installation time.\n- Source through AmpState to access worldwide availability of Siemens MCC components and maintain supply continuity for ongoing projects. Purchase with confidence\n- The Siemens Marq 21 Breaker MCC Bucket is a purpose-built component for OEM replacement and retrofit needs, delivering reliable three-phase power distribution in a compact, 18\" form factor. Available through AmpState for global reach, it’s a practical, standards-aligned choice for modernizing or maintaining Siemens MCC installations.\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46337192657058,"sku":null,"price":9510.0,"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_994448bd-bd44-4b71-804d-69551ee5615c.jpg?v=1763781493","url":"https:\/\/www.ampstate.com\/products\/siemens-marq-21-breaker-mcc-bucket-300-a-480-v-18-height-3-p-ampstate","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}