Siemens - Marq 21 - Breaker MCC Bucket - 40 A, 480 V, 6" Height, 3 P | AmpState

Power the core of your motor-control system with the Siemens Marq 21 Breaker MCC Bucket — a purpose-built 40 A, 480 V, 3-Pole insert designed for Siemens Marq 21 MCC panels. Engineered for OEM replacement and retrofit projects, this bucket integrates seamlessly into your existing Marq 21 lineup for fast, reliable performance when it matters most.

Key specifications at a glance

• Brand: Siemens • Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 40 A, 480 V, 3-Pole
• Bucket height: 6 inches
• Application: OEM replacement and retrofit within Marq 21 MCC lineups

Why this bucket matters

In industrial settings, the right MCC bucket can dramatically reduce downtime during maintenance or upgrades. The 40 A, 480 V, 3-Pole configuration is tailored for common motor loads found in pumps, fans, conveyors, and compressors, delivering dependable protection and control within your Marq 21 panels. The 6" bucket height matches standard Marq 21 module dimensions, ensuring a clean, plug-and-play fit that minimizes panel rework.

Use cases and ideal applications

• OEM replacements for aging or damaged Marq 21 MCC buckets, restoring original performance without reconfiguring the panel.
• Retrofit projects that keep the existing Marq 21 architecture while upgrading to a confirmed Siemens 40 A, 480 V, 3-Pole configuration.
• Service fleet spares for plants with multiple lines of motor control, enabling rapid swaps to minimize downtime.

Who benefits most

Maintenance engineers, OEM integrators, and plant managers working with Siemens Marq 21 MCC systems will find this bucket to be a precise, reliable replacement that aligns with established panel designs and protection schemes. It’s particularly valuable for facilities pursuing predictable performance in medium-current motor control environments.

Reliability and sourcing

AmpState supplies Siemens MCC components worldwide, ensuring access to genuine Marq 21 buckets for urgent repairs, scheduled maintenance, and long-term inventory planning. With authentic Siemens parts, you can trust compatibility, electrical performance, and installation integrity across your motor-control infrastructure.