Siemens - Marq 21 - Breaker MCC Bucket - 300 A, 240 V, 36" Height, 3 P | AmpState

Siemens Marq 21 Breaker MCC Bucket—built for rugged industrial motor control centers where reliability and precise protection matter. This 300 A, 240 V, 3-Pole module is engineered to slot directly into Siemens Marq 21 MCC lineups, delivering dependable performance for OEM replacement and retrofit projects. With a 36" bucket height, it aligns with standard Marq 21 frames, ensuring a smooth, downtime-minimizing swap for demanding manufacturing environments.

Why this MCC bucket stands out

• Direct-fit compatibility with Siemens Marq 21 MCC lineups for OEM replacements and retrofits.
• High-current capability 300 A rating at 240 V, 3-Pole configuration supports three-phase motor loads with coordinated protection.
• Standardized footprint 36" height matches common MCC frame dimensions, reducing modification needs during swap-outs.
• Trusted sourcing from AmpState, a global supplier of Siemens MCC components, ensuring availability and support.

Practical use cases

Use this bucket when replacing a failed or aging MCC module in a Siemens Marq 21 installation. It’s a practical retrofit option for plants upgrading to higher current demands or modernizing control centers without a full system rebuild. Ideal for manufacturing lines, process equipment, and any three-phase application requiring reliable protection at 300 A.

Compatibility and installation considerations

Designed to integrate with existing Marq 21 assemblies, this bucket preserves original protection coordination and wiring topology. Before replacement, verify that your system uses a 36" high, 3-Pole MCC bucket within the Marq 21 family to ensure a seamless swap.

AmpState is your source for Siemens MCC components worldwide, offering proven performance, reliable availability, and dedicated support to help keep critical equipment running smoothly.