Siemens - Marq 21 - Breaker MCC Bucket - 125 A, 600 V, 15" Height, 3 P | AmpState

Meet the Siemens Marq 21 Breaker MCC Bucket — a purpose-built, OEM-grade component engineered for industrial motor control centers. This 125 A, 600 V, 3-Pole bucket is designed to integrate seamlessly with Siemens Marq 21 MCC frames, delivering reliable protection and controlled power distribution in demanding environments.

Why this bucket stands out

• Exact compatibility: Specifically configured for the Siemens Marq 21 series, ensuring a precise fit and electrical alignment with existing cabinets and protection schemes.
• Electrical strength: Rated for 125 A continuous current and up to 600 V, making it suitable for a wide range of three-phase motor control applications in industrial settings.
• Three-pole protection: Maintains balanced protection across all three phases, essential for consistent motor performance and safe startup/shutdown sequences.
• Compact footprint: 15" bucket height supports efficient enclosure planning and can help optimize cabinet layout without sacrificing performance.
• OEM replacement and retrofit ready: Designed to support OEM replacement and retrofit projects, enabling plant upgrades and maintenance without a full cabinet redesign.
• Global availability: AmpState provides Siemens MCC components worldwide, ensuring timely sourcing for projects of any scale.

Ideal use cases

• OEM replacement projects where Marq 21 compatibility is critical to preserving control logic, wiring schemes, and accessory fit.
• Retrofits and maintenance to restore or upgrade motor control centers without overhauling surrounding infrastructure.
• Mid-size to large industrial facilities needing reliable, Siemens-branded MCC components to support 3-phase motor loads up to 125 A at 600 V.

What to consider before installation

• Verify the bucket height (15") fits your enclosure space and mounting provisions.
• Confirm the 3-Pole configuration matches your motor load requirements and protection strategy.
• Ensure the 125 A / 600 V ratings align with your system voltage and circuit protection plan.
• Coordinate with AmpState for authentic Siemens documentation, warranty details, and timely procurement as part of your retrofit or replacement workflow.

As a trusted Siemens MARQ 21 MCC component from AmpState, this Breaker MCC Bucket delivers dependable performance, straightforward integration, and peace of mind for maintenance teams and OEMs alike. It’s more than a replacement part — it’s a strategic enabler for consistent motor control reliability and efficient plant operations.