Siemens - Marq 21 - Breaker MCC Bucket - 90 A, 480 V, 15" Height, 3 P | AmpState

Siemens - Marq 21 Breaker MCC Bucket delivers a precise 90 A, 480 V, and 3-Pole configuration in a compact 15" tall form factor, purpose-built for the Siemens Marq 21 motor control center lineup. This OEM replacement and retrofit-ready bucket is engineered to integrate with existing Marq 21 panels, helping you maintain consistent performance and electrical ratings across your MCCs.

Why this MCC bucket matters

• Exact compatibility within the Marq 21 family: Specifically designed to fit Siemens Marq 21 MCC enclosures, ensuring reliable alignment with bus, mounting, and common trip/interrupting requirements.
• Three-phase, 480 V operation: The 90 A, 480 V, 3-Pole configuration is tailored for modern industrial drives and motor loads that rely on standard 3-phase networks.
• Compact, standardized footprint: At 15" in height, this bucket fits typical MCC spaces while maintaining the performance characteristics you expect from Siemens components.
• OEM replacement viability: Designed for effortless replacement in OEM-installed systems, reducing commissioning risks and preserving panel integrity.
• Retrofit-ready for modernization: Use this bucket to upgrade aging MCCs or to bring legacy installations in line with current Siemens specifications without full enclosure redesigns.

Practical use cases and benefits

• OEM replacement projects: When a Marq 21 MCC bucket reaches end of life or requires field replacement, this unit provides an exact match to minimize downtime and preserve control fidelity.
• Retrofit and modernization: Upgrade older motor control centers to Siemens Marq 21 standards, aligning ratings and dimensions with minimal panel modification.
• Maintenance and spare planning: Keeping a compatible bucket on hand reduces downtime during routine service or unexpected outages, ensuring quick swap-outs.
• Industrial reliability: Rely on a Siemens-branded MCC bucket to maintain consistent performance across demanding environments and equipment fleets.

What AmpState brings to you

AmpState supplies high‑quality Siemens MCC components worldwide, connecting service teams and OEMs with authentic parts that meet exacting specifications. With the Siemens Marq 21 Breaker MCC Bucket, you gain a dependable, readily available option for maintaining or upgrading critical motor control infrastructure.

Specifications at a glance

• Brand: Siemens
• Series: Marq 21
• Configuration: Breaker MCC Bucket
• Rating: 90 A, 480 V, 3-Pole
• Bucket Height: 15 inches

Installation and best-practice notes

For best results, verify that the replacement bucket aligns with the existing Marq 21 MCC enclosure specifications and that the system is de-energized before installation. Use standard electrical safety practices and follow your organization’s maintenance procedures. While designed for straightforward integration, confirm mounting and bus connections match your specific panel configuration to ensure reliable performance and compliance with applicable codes.