Siemens - Marq 21 - Breaker MCC Bucket - 20 A, 600 V, 15" Height, 3 P | AmpState

Siemens - Marq 21 Breaker MCC Bucket — a purpose-built OEM replacement for industrial motor control centers. Engineered for a 20 A, 600 V, 3-pole configuration, this 15" high bucket is designed to slot directly into Siemens Marq 21 MCC lineups, delivering dependable protection and streamlined service in demanding environments.

• Exact fit for Siemens Marq 21 MCC frames: simplifies OEM replacement and retrofit projects by preserving the original control geometry and bus connections.
• Precise electrical rating: 20 A, 600 V, 3-pole configuration to support common motor loads without overfusing or underprotection.
• Standardized physically: 15" bucket height aligns with established Marq 21 mounting dimensions, minimizing installation guesswork.
• Rugged industrial design: built to withstand vibration, dust, and temperature variations typical of manufacturing and process facilities.
• Modular compatibility: works within existing Marq 21 architectures without adapters, reducing installation time and compatibility concerns.
• Global availability through AmpState: AmpState supplies Siemens MCC components worldwide, helping you keep spare buckets on hand to minimize downtime.

Technical specifications

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 20 A, 600 V, 3-Pole
• Bucket Height: 15"
• Application: Motor Control Center (MCC) breakout and protection components

Ideal use cases

• OEM replacement for aging Marq 21 MCC installations to restore original protection and control workflows.
• Retrofit projects that modernize MCC bays without reconfiguring entire panels, preserving existing buswork and interconnections.
• Strategic spare-part stocking for maintenance teams, enabling rapid swaps and reducing unplanned downtime in critical lines.
• New builds and expansions that adopt the Siemens Marq 21 architecture for consistent component standards across plants.

Why choose AmpState for this bucket

AmpState sources authentic Siemens MCC components worldwide, ensuring you receive genuine Marq 21 buckets that align with factory specifications. With dependable availability and parts support, AmpState helps maintenance teams keep motor control systems running smoothly and predictably.

Practical setup and installation tips

• Verify the bucket height (15"), 3-Pole configuration, and 20 A, 600 V rating against your MCC panel’s exact requirements before purchase.
• Confirm compatibility with the Marq 21 frame and mounting orientation to ensure a true drop-in replacement without modifying rail systems.
• During replacement, inspect bus connectors and latch mechanisms to ensure secure electrical contact and safe operation after installation.
• Consider maintaining a small inventory of Marq 21 MCC buckets for planned maintenance windows or rapid response to unexpected outages.