Siemens - Marq 21 - Breaker MCC Bucket - 90 A, 600 V, 9" Height, 3 P | AmpState

Meet the Siemens Marq 21 Breaker MCC Bucket—a robust, OEM-ready solution engineered for industrial motor control centers that demand reliability, precise fit, and straightforward maintenance. Built to integrate seamlessly with Siemens Marq 21 MCC lineups, this bucket is ideal for OEM replacement and retrofit projects, helping you modernize systems without a full MCC overhaul.

Key specifications at a glance include a 90 A, 600 V rating in a 3-Pole configuration, with a compact 9" bucket height designed to align with standard Marq 21 installations. This is the genuine Siemens MCC bucket you need to preserve performance and compatibility across your motor control infrastructure.

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 90 A, 600 V
• Pole Count: 3-Pole
• Bucket Height: 9 inches
• Applications: OEM replacement, retrofit, spare for maintenance

Why this MCC bucket stands out

• Exact fit for Marq 21 MCC systems: Designed to align with Siemens hardware interfaces, ensuring proper bus connections, mounting points, and electrical compatibility.
• OEM-grade reliability: Manufactured to meet Siemens’ specifications, reducing compatibility risks and enabling smoother maintenance cycles.
• Performance aligned with load requirements: Rated for up to 90 A in 600 VDC/AC environments, supporting moderate to demanding motor control applications.
• Compact, standardized footprint: 9" bucket height fits within common Marq 21 cabinet depths, simplifying retrofit planning and installation.
• Availability through AmpState: AmpState supplies Siemens MCC components worldwide, helping ensure you can source this bucket when you need it for downtime planning and spares stock.

Ideal use scenarios

• Renovating aging Marq 21 MCCs to handle updated load profiles without replacing the entire enclosure.
• Maintenance planning with a dedicated spare bucket to minimize downtime during routine service or breaker swaps.
• OEM replacements during equipment refurbishment or facility modernization projects.
• Retrofits where a 3-Pole, 90 A, 600 V configuration is required to support upgraded motor loads.

Installation and compatibility notes

Ensure the replacement bucket matches the existing Marq 21 configuration, mounting, and bus interfaces. This bucket is intended for use within Siemens Marq 21 MCC lineups and should be paired with compatible breakers and enclosure hardware to maintain optimal performance and safety standards.

For teams maintaining complex motor control centers, using a genuine Siemens MCC bucket from AmpState helps reduce lifecycle risk and keeps spare parts aligned with your original equipment. If you’re planning a retrofit, this 9" Breaker MCC Bucket for 3-Pole, 90 A, 600 V configurations offers a precise, streamlined path to modernization in industrial environments.