Siemens - Marq 21 - Breaker MCC Bucket - 125 A, 480 V, 15" Height, 3 P | AmpState

Engineered for demanding industrial motor control tasks, the Siemens Marq 21 Breaker MCC Bucket delivers a precise 125 A, 480 V, 3-Pole configuration inside a compact 15" bucket footprint. Built specifically for the Siemens Marq 21 MCC line, this MCC bucket is the OEM-grade choice for replacements and retrofits in existing systems.

Key specifications at a glance

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 125 A at 480 V, 3-Pole
• Bucket height: 15 inches

Designed for OEM replacements and retrofit projects, it slips into standard Marq 21 frames with minimal modification, enabling you to restore or upgrade motor control capabilities without a full cabinet redesign.

Why it matters

• Exact compatibility: Tailored to the Marq 21 MCC lineup, ensuring accurate fitment, bus routing, and mounting patterns—so you don’t chase mismatched components during a rebuild.
• Reliable performance: Rated for 125 A and 480 V, this bucket supports heavy-duty motor loads and control circuits common in manufacturing, pumps, conveyors, and HVAC applications.
• Flexible retrofit options: Use as a direct OEM replacement for aging MCCs or as a modular upgrade to expand power distribution within your Marq 21 system.
• Operational clarity: Standardized 3-Pole configuration aligns with common three-phase systems, simplifying wiring schemes and maintenance checks.

In practice, engineers and maintenance teams choose this bucket when rebuilding or expanding Siemens Marq 21 MCCs. It reduces downtime by providing a bench-ready, authentic Siemens component that integrates with existing breakers, bus bars, and protective relays. Whether you're modernizing a legacy plant or maintaining current equipment, this MCC bucket delivers predictable performance and long service life when paired with Siemens-certified accessories.

Practical tips for installation and use

• Verify that the receiving Marq 21 cabinet is configured for a 125 A, 480 V, 3-Pole setup before ordering.
• Inspect bus bar alignment and mounting hardware to ensure a smooth fit with minimal alignment effort during installation.
• Maintain torque specifications for associated lugs and terminations per Siemens guidelines to ensure reliable power connections.
• Store spares in a controlled environment to prevent corrosion and ensure readiness for preventive maintenance cycles.

Secure this Siemens Marq 21 Breaker MCC Bucket from AmpState and keep your motor control center performing at the level your operations demand. OEM-grade, Siemens-certified components mean faster restorations and lasting reliability for OEM replacements and retrofits alike. AmpState supplies this item worldwide, supporting your global maintenance and upgrade needs.