Siemens - Marq 21 - Breaker MCC Bucket - 300 A, 240 V, 15" Height, 3 P | AmpState

Siemens - Marq 21 Breaker MCC Bucket – 300 A, 240 V, 3-Pole, 15" Height is a purpose-built component for industrial motor control centers. Specifically designed for Siemens Marq 21 MCC lineups and ideal for OEM replacement and retrofit projects, this MCC bucket preserves the exact electrical characteristics and mounting geometry of the original part.

Why this matters for your operation:

• Precise fit and compatibility: This is the genuine Siemens MCC bucket designed to drop into Marq 21 cabinets without modification, ensuring reliable electrical contact and correct mechanical alignment.
• Robust performance for demanding loads: Rated at 300 A and 240 V with a 3-Pole configuration, it handles medium-to-large motor loads common in conveyors, pumps, and HVAC fans.
• Quick OEM replacement or retrofit: Replace aging buckets or retrofit older MCCs with a part that matches Siemens’ original design, reducing commissioning time and downtime.
• Practical form factor: The 15" bucket height fits standard Marq 21 enclosures, supporting streamlined installation and assembly in existing rooms.
• Trusted supply from AmpState: AmpState offers genuine Siemens MCC components with global availability, helping you minimize stockouts and keep maintenance programs on track.

Key specifications

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 300 A, 240 V, 3-Pole
• Bucket Height: 15 inches
• Application: Industrial motor control, OEM replacement, retrofit

Use cases and execution scenarios

In a manufacturing line, this MCC bucket supports three-phase motor protection for drives and feeders, helping maintain smooth operation of conveyors, pumps, compressors, and fans. For OEMs, it provides a reliable, spec-compliant replacement that preserves the original control topology and electrical clearances. For retrofit projects upgrading older MCCs, it ensures compatibility with Siemens original components for predictable performance and easier ongoing maintenance.

Installation and care

Installation should be performed by qualified personnel following Siemens installation guidelines. Verify cabinet compatibility with Marq 21, confirm mounting holes, conductor sizing, and electrical clearances match the original bucket, and inspect for proper seating and secure connections after installation. When in doubt, consult AmpState support to confirm part compatibility with your specific Marq 21 cabinet and project requirements.