Siemens - Marq 21 - Breaker MCC Bucket - 150 A, 600 V, 12" Height, 3 P | AmpState

Siemens Marq 21 Breaker MCC Bucket — a purpose-built component for robust motor control centers. This bucket is rated for 150 A at 600 V and configured as a 3-Pole breaker bucket, with a 12-inch height, designed to slot into the Siemens Marq 21 MCC lineup for reliable protection and control of heavy-duty motors.

What makes it stand out

• OEM-compatible replacement — engineered for OEM replacement and retrofit in Marq 21 installations, preserving existing electrical architecture and mounting alignment.
• Precise electrical ratings — 150 A continuous current with a 600 V maximum, suitable for demanding industrial applications.
• Compact, consistent form factor — 12-inch bucket height matches standard Marq 21 configurations, ensuring straightforward integration without enclosure modifications.
• Three-pole protection — reliable 3-Pole breaker bucket configuration provides balanced protection across phases in motor control circuits.
• A global supplier footprint — AmpState distributes genuine Siemens MCC components worldwide, with support for parts availability and technical guidance.

Ideal use cases

Engineers and maintenance teams rely on this Marq 21 Breaker MCC Bucket for:

• Replacing a failed or worn-out bucket in existing Marq 21 MCC panels, minimizing downtime and preserving control reliability.
• Retrofit projects where upgrading to the Marq 21 platform enhances protection, coordination, and standardization across multiple lines.
• OEM replacement in new equipment builds where Siemens Marq 21 architecture is specified, ensuring compatibility with the rest of the MCC components.

Compatibility and installation tips

To maximize performance, confirm that your enclosure is sized for a 12-inch bucket and that the Marq 21 lineup is specified for your panel. Follow Siemens installation guidelines for safe electrical work, and ensure power is isolated during replacement. If you’re upgrading multiple buckets or coordinating with other MCC components, consider consulting AmpState’s technical support for availability and lead times on Siemens Marq 21 parts.