Siemens - Marq 21 - Breaker MCC Bucket - 75 A, 240 V, 18" Height, 3 P | AmpState

Introducing the Siemens Marq 21 Breaker MCC Bucket — a purpose-built module engineered for industrial motor control centers. This 75 A, 240 V, 3-Pole bucket fits the Siemens Marq 21 lineup, delivering a precise OEM replacement or retrofit option that preserves the original system performance and protection coordination.

Designed for demanding environments, this MCC bucket delivers reliable protection for medium to large motor circuits while maintaining seamless compatibility with existing Marq 21 controllers and accessories. Its 18" height is precisely matched to standard Marq 21 frames, enabling quick, drop-in replacement with minimal downtime.

Key features and benefits

• 75 A, 240 V, 3-Pole configuration provides robust, three-phase motor protection aligned with typical industrial drives and feeders.
• 18" bucket height ensures a perfect fit within standard Siemens Marq 21 MCC enclosures.
• OEM-grade replacement designed for direct drop-in compatibility, preserving electrical characteristics and mounting geometry.
• Durable construction built to withstand harsh industrial environments and maintain reliable performance over time.
• Exact Siemens Marq 21 compatibility— intended for use in Marq 21 MCC lineups, making retrofit projects straightforward and predictable.
• Versatile for upgrades and maintenance ideal for OEM replacement programs, spare buckets for service intervals, or retrofit projects needing 75 A protection at 240 V.

Ideal use cases

• OEM replacement in aging Marq 21 motor control centers to restore original protection and control functionality.
• Retrofit projects aiming to standardize on 75 A, 240 V three-pole protection within existing Siemens MCC infrastructure.
• Maintenance planning with a ready-to-deploy spare bucket to minimize downtime during service windows.
• Upgrading control cabinets in facilities that require reliable, drop-in components that align with Marq 21 specifications.

Specifications at a glance

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 75 A, 240 V, 3-Pole
• Bucket Height: 18 inches

Why choose this MCC bucket from AmpState? AmpState sources authentic Siemens MCC components for global distribution, ensuring you receive genuine parts that align with the original equipment manufacturer’s specifications. This bucket is purpose-built to integrate with Siemens Marq 21 MCC systems, supporting consistent performance, protection coordination, and long-term reliability in industrial motor control applications.

Installation note: Confirm compatibility with your Marq 21 frame and verify that the 18" bucket height, 75 A rating, and 240 V three-pole configuration meet your system requirements. For best results, follow the Marq 21 installation guidelines and use standard mounting hardware and bus connections appropriate for your enclosure. A professional technician or electrical engineer familiar with Siemens MCC hardware should perform any replacement or retrofit to ensure proper alignment and safe operation.