Siemens - Marq 21 - Breaker MCC Bucket - 90 A, 600 V, 6" Height, 3 P | AmpState

Siemens Marq 21 Breaker MCC Bucket — a purpose-built, plug‑in solution for industrial motor control centers that require a 90 A, 600 V, 3‑pole configuration. Designed to integrate flawlessly with the Siemens Marq 21 MCC lineup, this bucket is the ideal choice for OEM replacement and retrofit projects where precise fit and dependable protection matter.

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 90 A, 600 V, 3‑Pole
• Bucket Height: 6 inches
• Application: OEM replacement and retrofit for Marq 21 MCC lineups

The Marq 21 Breaker MCC Bucket is built to withstand the rigors of heavy‑duty motor control environments. With a 3‑pole design, it supports balanced three‑phase protection and reliable trip coordination, helping to safeguard motors, drives, and feeders in demanding applications like pumping stations, conveyors, and processing lines. The 6" bucket height ensures compatibility with standard Marq 21 enclosures, aligning with mounting rails, bus connections, and interlock assemblies for a clean, secure install.

Why choose this bucket? It’s a direct‑fit OEM replacement that minimizes downtime during maintenance or equipment upgrades. By selecting a genuine Siemens MCC bucket within the Marq 21 family, you preserve electrical architecture consistency, maintain protective coordination, and simplify future service needs. This part is also a strong retrofit option when upgrading legacy MCC sections to modern standards without altering surrounding components.

Ideal use cases include new builds that adopt Siemens Marq 21 MCC configurations, repairs to existing centers where a 90 A, 600 V, 3‑pole bucket is required, and retrofit projects aiming to standardize protection across multiple lines. It’s especially suitable for industrial facilities with tight space constraints and strict reliability requirements, such as manufacturing floors, water treatment plants, and large‑volume processing operations.

Installation and compatibility tips — verify enclosure compatibility with the 6" bucket height and ensure alignment with bus bars and interlocks in your Marq 21 MCC. Since this is a Siemens‑branded component intended for the Marq 21 system, it streamlines maintenance workflows by preserving common spare parts and electrical characteristics across your MCC fleet.

backed by AmpState’s global distribution of high‑quality Siemens MCC components, you can source this breaker MCC bucket with confidence, knowing it’s designed to perform reliably in mission‑critical environments.