Siemens - Marq 21 - Breaker MCC Bucket - 150 A, 208 V, 36" Height, 3 P | AmpState

Meet the Siemens Marq 21 Breaker MCC Bucket — a purpose-built, high-reliability module designed for demanding industrial motor control centers. With a 150 A, 208 V, 3-Pole configuration and a 36" bucket height, this unit is crafted to integrate seamlessly into Siemens Marq 21 MCC lineups, delivering dependable protection and streamlined maintenance for retrofit and OEM replacement projects.

Key specifications

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 150 A, 208 V, 3-Pole
• Bucket Height: 36 inches
• Application: Industrial motor control centers, OEM replacements, and retrofit installations

What makes this MCC bucket stand out

• OEM-grade compatibility: Precision-engineered to match Siemens Marq 21 MCC bays for reliable alignment, contact timing, and bus connections, reducing installation adjustments and downtime.
• Retrofit-ready: Ideal for upgrading aging MCCs or replacing a failed bucket without a full panel rewrite, helping you protect existing investments while modernizing protection schemes.
• Robust, field-proven design: Built to withstand the rigors of continuous motor control service in manufacturing, processing, and heavy equipment environments.
• Trusted sourcing: AmpState provides Siemens MCC components worldwide, offering accessible support and parts availability for global operations.

Ideal applications and use cases

This Breaker MCC Bucket is well-suited for facilities that rely on reliable, modular motor control architectures. Use it for:

• OEM replacements in new builds or legacy facilities that require exact Marq 21 compatibility
• Retrofits to upgrade protection, improve coordination, or restore full MCC functionality
• Industrial plants, mining, water treatment, and large HVAC applications where a sturdy, 3-phase 208 V system is standard

Installation, compatibility, and care

Designed for straightforward integration, this bucket plugs into existing Marq 21 MCC frames with minimal modification. Before installation, verify the target MCC bay is configured for 150 A, 208 V, 3-Pole protection and confirm that the 36" bucket height aligns with your cabinet layout. For ongoing reliability, handle with standard electro-mechanical safety practices, and schedule periodic reviews of contact integrity and enclosure sealing to maintain optimal performance in demanding environments.

About AmpState

AmpState supplies high-quality Siemens MCC components worldwide, offering dependable access to critical motor control hardware. This Marq 21 Breaker MCC Bucket embodies that commitment to durable, factory-grade components designed to keep industrial systems running smoothly.