Siemens - Marq 21 - Breaker MCC Bucket - 400 A, 208 V, 30" Height, 3 P | AmpState

Meet the Siemens - Marq 21 Breaker MCC Bucket — a purpose-built module for industrial motor control centers that require a 400 A, 208 V, 3-Pole setup. Engineered to sit seamlessly within the Siemens Marq 21 MCC lineup, this bucket is the ideal OEM replacement and retrofit option for aging panels or new builds demanding reliable protection and control.

Key specifications

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 400 A, 208 V, 3-Pole
• Bucket Height: 30"

Why this bucket stands out

• Specifically designed for the Marq 21 family, delivering precise fit, alignment, and compatibility with existing bus work and protection schemes.
• Ideal for OEM replacement projects and retrofits — swap-in readiness minimizes modification, downtime, and project risk.
• Reliable performance for demanding motor loads at 400 A with a 208 V three-phase supply, suitable for a range of industrial applications such as pumps, conveyors, and compressors.
• Global availability through AmpState, focused on Siemens MCC components, so you can source exact replacements quickly and confidently.

Practical use cases

• Upgrading a downstream Marq 21 switchgear to 400 A capacity without redesigning the cabinet.
• Retrofits in existing plants where a like-for-like replacement minimizes integration risk.
• New builds within automation projects that standardize on Siemens Marq 21 MCC components for consistent protection and control strategies.

Shipping and support: AmpState provides worldwide access to Siemens MCC components, backed by a network that understands industrial timelines and compatibility needs. If you're designing, upgrading, or maintaining a motor control center in a facility that relies on Siemens Marq 21, this 400 A, 208 V, 3-Pole Breaker MCC Bucket is built to deliver dependable protection and straightforward integration.