Siemens - Marq 21 - Breaker MCC Bucket - 125 A, 240 V, 12" Height, 3 P | AmpState

The Siemens Marq 21 Breaker MCC Bucket is engineered to deliver dependable motor control protection in demanding industrial environments. Designed for a precise 125 A, 240 V, 3-Pole configuration, this bucket integrates seamlessly into Siemens Marq 21 MCC lineups, making it an ideal choice for OEM replacements and retrofit projects.

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 125 A, 240 V, 3-Pole
• Bucket Height: 12"

Why this MCC bucket matters in your system

• Exact Marq 21 compatibility: Built to fit the Marq 21 MCC enclosures, ensuring proper mounting, electrical interface alignment, and reliable operational performance.
• OEM replacement readiness: Designed to stand in for original components, minimizing downtime during changes to existing motor control centers.
• Retrofit-friendly: Simplifies upgrades and modernization efforts by matching Siemens’ standard MCC bucket geometry and electrical connections.
• Reliable current handling: Rated for 125 A at 240 V across 3 poles, suitable for controlling medium-load motors and equipment in industrial settings.

Ideal use cases and who benefits

• OEM replacement in existing Siemens Marq 21 MCC installations where downtime needs to be minimized and system integrity preserved.
• Retrofit projects upgrading motor control centers to maintain consistent performance with current specifications.
• New installations requiring a trusted, field-proven breaker MCC bucket designed for Marq 21 configurations.
• Industrial environments such as manufacturing lines, process plants, and heavy equipment stations that rely on robust 3-pole protection.

What sets this bucket apart (practical value)

• Siemens engineering lineage: Built to the exacting standards of the Marq 21 family, reducing compatibility risks and ensuring predictable electrical characteristics.
• Streamlined maintenance: Standardized design simplifies inspection, torque checks, and replacement cycles within maintenance programs.
• Fit-for-purpose height: The 12" bucket height aligns with common Marq 21 enclosure layouts, helping preserve enclosure geometry and clearances.

Practical tips for installation and care

• Confirm enclosure compatibility with the 12" bucket height to ensure proper mounting and safe clearance around conductors.
• Isolate power and follow standard safety procedures before swapping or installing the MCC bucket.
• Inspect connections for clean, tight terminations and verify alignment with the Marq 21 mechanical and electrical interfaces after installation.
• Schedule periodic maintenance checks to monitor contact integrity and overall bucket condition in hot or demanding environments.

Availability and support

AmpState distributes high-quality Siemens MCC components worldwide, including the Marq 21 Breaker MCC Bucket. When you choose AmpState, you’re partnering with a global supplier known for authentic parts, reliable sourcing, and responsive support through the lifecycle of your motor control projects.