Siemens - Marq 21 - Breaker MCC Bucket - 50 A, 480 V, 6" Height, 3 P | AmpState

Engineered for demanding industrial motor control environments, the Siemens Marq 21 Breaker MCC Bucket delivers a precise 50 A, 480 V, 3-Pole configuration in a compact 6" height. Designed for use within the Siemens Marq 21 MCC lineup, this bucket is the reliable OEM replacement and retrofit choice for maintaining optimal performance and safety in your motor control center.

Designed for seamless Marq 21 integration

This MCC bucket is purpose-built to drop into Siemens Marq 21 cabinets, preserving exact mounting geometry and bus-bar alignment. When replacing worn or obsolete buckets, you gain a plug‑and‑play upgrade path that keeps your control system consistent with Siemens’ protection and coordination standards. Ideal for both new installs within the Marq 21 family and refurbishments of existing installations.

Key specifications at a glance

• Brand/Series: Siemens, Marq 21
• Configuration: Breaker MCC bucket
• Rating: 50 A, 480 V, 3-Pole
• Bucket Height: 6 inches

Why this bucket matters for your operation

Using an official Siemens Marq 21 MCC bucket ensures consistent electrical characteristics, reliable trip behavior, and compatible wiring access with your existing system. It supports proper protection coordination for motor loads, minimizes unnecessary downtime, and helps sustain long-term reliability for critical manufacturing lines, pumps, fans, and conveyors that demand steady, controlled power distribution.

Ideal use cases

• OEM replacement in existing Marq 21 MCC installations to restore original performance
• Retrofit projects upgrading or expanding 3-Pole motor loads up to 50 A at 480 V
• Spare bucket for service fleets to reduce maintenance downtime
• New equipment integrations where Marq 21 compatibility is required

Installation and practical considerations

• Ensure exact compatibility with your Marq 21 frame before installation to maintain mounting alignment and bus-bar connections.
• Follow Siemens installation guidelines for safe handling and secure fastening of the MCC bucket components.
• Inspect wiring harnesses and connector interfaces for clean, undamaged paths to prevent contact resistance issues.
• Store spare buckets in a dry environment and label parts to streamline future service or replacements.

Why choose AmpState for Siemens MCC components

AmpState supplies genuine Siemens MCC components worldwide, including the Marq 21 Breaker MCC Bucket. When you purchase through AmpState, you’re securing authentic parts designed to meet the original specifications and performance you expect from Siemens, backed by reliable availability and support for uptime-critical projects.