Siemens - Marq 21 - Breaker MCC Bucket - 150 A, 240 V, 9" Height, 3 P | AmpState

The Siemens Marq 21 Breaker MCC Bucket—150 A, 240 V, 3-Pole—is a purpose-built solution for industrial motor control centers that demand precise compatibility and reliable performance. Designed to slot seamlessly into Siemens Marq 21 MCC lineups, this bucket serves as a robust OEM replacement and retrofit option for upgraded or legacy systems.

Key advantages you’ll notice in real-world use include a straightforward drop-in fit, a proven 3-Pole configuration for three-phase motor control, and a compact 9" bucket height that helps maximize enclosure space without compromising access for wiring and maintenance. Built specifically for industrial motor control applications, it supports everyday plant operations with dependable electrical performance.

Why this MCC bucket stands out

• Exact Siemens Marq 21 compatibility ensures a seamless, trouble-free installation within existing MCC frames and control architectures.
• 150 A, 240 V, 3-Pole rating delivers the downstream connectivity and switching capacity required for standard industrial motors and drives.
• 9" bucket height provides a compact footprint that fits tight enclosures while preserving clear wiring paths and service access.
• OEM replacement and retrofit ready ideal for updates in aging equipment or when standardizing on Siemens Marq 21 components across a facility.
• Durable, purpose-built construction engineered for demanding industrial environments where reliability matters most.

Who benefits from this product

Manufacturers, system integrators, and maintenance teams planning motor control center upgrades or replacements will find this MCC bucket a precise fit for their Siemens-based architectures. It’s especially valuable for plants standardizing on Marq 21 modules to streamline parts inventories and maintenance procedures.

Use cases and practical scenarios

• OEM replacement on existing Siemens Marq 21 MCC assemblies to minimize downtime during upgrades.
• Retrofit projects where a 150 A, 240 V, 3-Pole configuration is required to support new motor loads.
• Spare parts strategy for facilities with multiple Marq 21 frames, ensuring quick, compatible replacements during maintenance windows.

Specifications at a glance

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 150 A, 240 V, 3-Pole
• Bucket Height: 9 inches

Available from AmpState, a global supplier of Siemens MCC components, this Marq 21 Breaker MCC Bucket brings trusted Siemens reliability to your motor control infrastructure. If you’re upgrading, repairing, or standardizing across multiple lines, this bucket provides a straightforward, compatible path to consistent performance across your plant.