Siemens - Marq 21 - Breaker MCC Bucket - 150 A, 208 V, 6" Height, 3 P | AmpState

Siemens Marq 21 Breaker MCC Bucket — 150 A, 208 V, 6" height, 3-Pole — engineered for demanding industrial motor control applications and built to integrate seamlessly with Siemens Marq 21 MCC lineups. This breaker MCC bucket delivers reliable protection and control in a compact, OEM-ready package, ensuring your motor systems run smoothly with minimal downtime.

This MCC bucket is designed for OEM replacement and retrofit projects, making it an ideal choice when you need to bring aging control centers up to current performance standards without a full enclosure overhaul. With exact-fit compatibility for the Marq 21 family, you can expect straightforward installation and consistent electrical geometry that reduces commissioning fiddles and field adjustments.

Key specifications

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 150 A, 208 V, 3-Pole
• Bucket Height: 6"

Why this bucket stands out

• Exact-fit for Marq 21 MCC systems: Designed to align with Siemens’ architectural standards, ensuring secure mounting, compatible bus connections, and reliable tray alignment without adapters or modifications.
• OEM-grade reliability: Built to meet Siemens’ durability and performance expectations, providing steady protection for motors and loads in industrial environments.
• Optimized for retrofits and replacements: A practical choice for upgrading existing centers, reducing electrical discrepancies, and accelerating project timelines.
• Compact 6-inch bucket height: Enables efficient use of space within tight MCC footprints while preserving access for wiring, testing, and maintenance.

Ideal use cases

• OEM replacement for aging Siemens Marq 21 MCC buckets to restore original protection and control characteristics.
• Retrofit projects where higher-capacity motor loads require a 150 A, 208 V, 3-Pole configuration within a Marq 21 chassis.
• Spare-part strategy to minimize downtime: keep a ready-to-install MCC bucket on hand for quick swap-outs during maintenance or sudden equipment failures.
• New builds or upgrades in plants that standardize on the Siemens Marq 21 platform, ensuring uniformity across multiple lines and crews.

Practical notes and tips

When planning a retrofit or replacement, verify the Marq 21 enclosure compatibility and ensure that the busbar geometry matches your existing setup. Because this bucket is part of the Siemens Marq 21 series, it benefits from a consistent design language, which translates to predictable field performance and fewer integration surprises.

For ongoing support and access to trusted components worldwide, AmpState provides Siemens MCC components, including this Marq 21 Breaker MCC Bucket, backed by a network of technical resources and global availability. If you’re coordinating a plant-wide motor control upgrade, this bucket offers a dependable pathway to modernization with OEM-grade quality.