Siemens - Marq 21 - Breaker MCC Bucket - 5 A, 480 V, 12" Height, 3 P | AmpState

Engineered for demanding industrial motor control tasks, the Siemens Marq 21 Breaker MCC Bucket delivers precise protection and dependable performance within Siemens Marq 21 MCC assemblies. Built as an OEM replacement and retrofit solution, this bucket is configured for 5 A, 480 V, 3-Pole operation, ensuring consistent trip characteristics and reliable control for your critical motors.

Designed for exact compatibility with Siemens Marq 21 MCC

• Exact fit for Siemens Marq 21 MCC lineups, guaranteeing proper mounting, bus connection geometry, and wiring harness alignment.
• Electrical rating—5 A, 480 V, 3-Pole—matched to common motor protection and control needs in industrial facilities.
• Mechanical spec—12" bucket height aligns with standard MCC frames and rack spacing for straightforward integration.
• OEM replacement designed to preserve original performance characteristics and compatibility with Marq 21 accessories.
• Retrofit-friendly ideal for upgrading aging MCC setups or restoring downtime-prone systems with genuine Siemens components.
• Global availability through AmpState, ensuring a reliable supply of Siemens MCC components for projects worldwide.

Ideal use cases

• OEM replacements during scheduled maintenance or equipment upfits in manufacturing and processing facilities.
• Retrofits to modernize existing Siemens Marq 21 motor control centers without redesigning the rack.
• Spare-part strategy for service teams, reducing downtime by having authentic buckets on hand.
• New-build projects that specify Siemens Marq 21 MCC for modular, scalable motor control solutions.

Why this bucket matters for performance and reliability

Using an OEM Marq 21 Breaker MCC Bucket ensures the electrical interfacing and protective functionality stay true to Siemens specifications. The 5 A, 480 V, 3-Pole configuration provides appropriate protection for small-to-mid-size motors, while the 12" bucket height supports clean, predictable installation within standard MCC enclosures. By choosing the Siemens Marq 21 bucket, you maintain consistent trip curves, harness compatibility, and accessory fitment—elements that help minimize commissioning time and post-install servicing.

Installation and maintenance considerations

• Verify compatibility with your existing Marq 21 MCC frame before installation to ensure seamless mounting and wiring alignment.
• Follow standard electrical safety practices during replacement or retrofitting, including lockout/tag-out procedures and proper torque for connections as specified by Siemens guidelines.
• Regularly inspect the bucket’s mounting integrity and contact surfaces as part of routine MCC maintenance to sustain reliable operation.

Why choose AmpState for Siemens MCC components

AmpState specializes in supplying high‑quality Siemens MCC components worldwide. With this Marq 21 Breaker MCC Bucket, you gain access to authentic Siemens parts backed by global availability and support, helping projects stay on schedule and maintain OEM-grade performance across the life of the equipment.