Siemens - Marq 21 - Breaker MCC Bucket - 300 A, 240 V, 48" Height, 3 P | AmpState

The Siemens Marq 21 Breaker MCC Bucket is a purpose-built solution for demanding industrial motor control centers. Engineered to support 300 A at 240 V in a 3-Pole configuration, this 48" tall bucket is designed to slot into Siemens Marq 21 MCC lineups, delivering a precise fit for OEM replacement and retrofit projects.

Why this bucket stands out in the field:

• Direct-fit compatibility — engineered to drop into your existing Marq 21 enclosure with minimal modification, ensuring proper bus alignment and mounting points for quick, reliable replacements.
• Robust for industrial duty — built to withstand the thermal and electrical stresses of large motor control applications, helping teams reduce downtime and extend service intervals.
• Optimized for 300 A, 240 V, 3-Pole loads — purpose-matched to typical motor starter and distribution scenarios, delivering predictable performance in harsh environments.
• OEM replacement and retrofit-ready — ideal for modernizing aging MCCs, performing plant-wide upgrades, or refreshing spare-part inventories to minimize outage risk.
• Part of AmpState’s Siemens MCC ecosystem — backed by AmpState’s global network, offering genuine Siemens components with reliable supply for worldwide operations.

Specifications at a glance

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 300 A, 240 V, 3-Pole
• Bucket Height: 48"

Who benefits most from this MCC bucket? Maintenance teams and equipment manufacturers running Siemens Marq 21 MCC systems in manufacturing plants, refineries, utilities, and other facilities with heavy motor loads. It’s especially valuable during OEM replacements, capacity expansions, or retrofits where downtime is expensive and a precise, compatible component is essential.

Practical usage notes to maximize uptime:

• Confirm exact Marq 21 model compatibility before installation to ensure seamless mounting and bus-bar alignment.
• Incorporate into preventive maintenance planning by stocking this 48" bucket as a standard spare for critical MCC lines.
• Coordinate with qualified electrical personnel for safe removal and replacement to preserve system integrity and safety.