Siemens - Marq 21 - Breaker MCC Bucket - 100 A, 600 V, 12" Height, 3 P | AmpState

Engineered for industrial motor control, the Siemens Marq 21 Breaker MCC Bucket delivers a rugged, ready-to-deploy solution for demanding 3‑phase systems. With a 100 A rating, 600 V capability, and a 3‑pole configuration, this bucket is built to handle the demanding startup currents and continuous loads of modern manufacturing environments. Designed to integrate seamlessly into the Siemens Marq 21 MCC lineup, it serves as a reliable OEM replacement or retrofit option that keeps critical equipment in service with minimal downtime.

Key specifications at a glance

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 100 A, 600 V, 3-Pole
• Bucket Height: 12"

Why this Marq 21 MCC bucket stands out

• Direct OEM fit for Marq 21 panels: Engineered to slot into the exact chassis and busbar interfaces used by Siemens Marq 21 MCC systems, ensuring straightforward installation and reliable electrical contact without custom modifications.
• OEM replacement and retrofit ready: A practical choice for replacements in aging MCCs or upgrades in existing lines, helping you maintain performance and safety standards without a full cabinet overhaul.
• Robust, mission-focused design: Built to withstand industrial environments, with a sturdy bucket assembly that supports consistent breaker operation and dependable interrupting capacity in demanding motor control applications.
• Compact yet capable 12" bucket height: Sized to fit standard Marq 21 rack spaces while delivering solid current handling and voltage performance for common motor loads.

Ideal use cases

• OEM replacements in active Siemens Marq 21 MCC installations to restore factory performance without custom rework.
• Retrofit projects upgrading aging MCCs to maintain compatibility with existing control logic and wiring schemes.
• Spare bucket deployment in service fleets to minimize downtime during maintenance cycles.

Performance and reliability in real-world terms

The 100 A, 600 V, 3‑pole rating is designed to reliably interrupt and switch three-phase motor circuits, supporting standard industrial loads while preserving system protection. By aligning with Siemens’ Marq 21 architecture, this MCC bucket helps preserve coordinated protection schemes, ensuring tripping and isolation occur as intended across all phases. The result is smoother startup, improved fault tolerance, and easier diagnostics when issues arise in motor control centers.

Why partner with AmpState

AmpState supplies high‑quality Siemens MCC components worldwide, providing assurance of compatibility, availability, and dependable performance for critical electrical infrastructure.

Whether you’re performing OEM replacements, retrofits, or stocking a ready-to-deploy spare, the Siemens Marq 21 Breaker MCC Bucket — 100 A, 600 V, 3-Pole, 12" — is designed to keep your motor control centers operating with confidence and minimal interruption.