Eaton - Cutler Hammer Freedom Unitrol - Breaker MCC Bucket - 400 A, 480 V, 48" Height, 3 P | AmpState

Engineered for rugged, 24/7 industrial environments, the Eaton Cutler Hammer Freedom Unitrol Breaker MCC Bucket is a purpose-built retrofit and replacement module for modern motor control centers. With a 400 A, 480 V, 3-Pole configuration and a 48-inch bucket height, this unit slides into Eaton’s Freedom Unitrol MCC framework to restore performance and reliability in demanding applications.

Key specifications

• Brand: Eaton - Cutler Hammer
• Series: Freedom Unitrol
• Configuration: Breaker MCC Bucket
• Current rating: 400 A
• Voltage: 480 V
• Poles: 3-Pole (3P)
• Bucket height: 48 inches

Why this MCC bucket stands out

• Direct fit for Freedom Unitrol centers: Specifically designed to drop into existing unitrol racks without extensive rework, reducing downtime during upgrades or replacements.
• Proven 400 A, 480 V 3P performance: Optimized for high-demand motor control environments, from conveyors and pumps to large fans and presses.
• Retrofit-friendly design: Enables easy modernization of aging MCC lineups, supporting long-term plant reliability and easier spare-part management.
• Industry-aligned safety and compatibility: Built to align with Eaton’s unitrol architecture, ensuring consistent electrical protection and coordination with upstream and downstream devices.

Ideal applications and use cases

Perfect for facilities that rely on heavy-duty motors and continuous operation, including manufacturing lines, material handling, water treatment, HVAC systems, and process industries. If you’re upgrading an aging motor control center, this bucket provides a straightforward path to restore capacity and reliability without reconfiguring an entire MCC lineup. It’s also a solid choice for retrofits that consolidate spare parts and streamline maintenance queues.

Performance in practice

By matching the 400 A current rating with 480 V three-phase capability, this MCC bucket supports robust motor starting and protection schemes. That means steadier startup sequences, reduced electrical noise in the buswork, and improved coordination with circuit breakers and fusing schemes already present in your Unitrol center. In daily operation, you’ll experience consistent protection for critical motors and smoother, more predictable system behavior during peak loads.

Installation, compatibility, and practical tips

• Confirm compatibility: Ensure your Freedom Unitrol MCC center is designed for a 400 A, 480 V, 3-Pole bucket and that the 48-inch height aligns with your rack spacing.
• Plan downtime strategically: Schedule a planned outage window for safe transfer and alignment to minimize impact on production lines.
• Follow proper isolation procedures: De-energize, lock out/tag out, and verify zero voltage condition before handling the MCC bucket.
• Check bus connections and mounting: Align mounting interfaces and tighten bus connectors to manufacturer-recommended torque to ensure secure, reliable electrical contact.
• Coordinate protections: Revalidate overcurrent and thermal protection settings to match the new 400 A capacity and any upstream protections in the MCC.

AmpState support and delivery

AmpState provides not only high-quality MCC buckets but also thoughtful retrofit solutions backed by global delivery and technical support. If you’re upgrading an Eaton unitrol system, AmpState stands ready to help confirm compatibility, source spares, and assist with troubleshooting during the retrofit process, so your facility maintains uptime and safety standards.