Eaton Westinghouse 11-300 400A 480V Breaker MCC Bucket 3-Pole

Meet the Eaton - Westinghouse 11-300 Breaker MCC Bucket from AmpState — a purpose-built insertion module for demanding motor control centers. Engineered to handle serious power-distribution tasks, this MCC bucket is rated for 400 A at 480 V (three-phase, 60 Hz) and features a 36-inch vertical frame to align with standard Eaton Westinghouse 11-300 configurations.

Key features that matter in real-world environments:

• 400 A at 480 V (three-phase, 60 Hz) — designed to support high-demand motor loads without compromising protection or performance.
• 36-inch vertical frame — precise fit within common MCC bays, ensuring straightforward retrofits and reliable alignment with existing bus and ductwork.
• 3-pole configuration — tailored for standard motor control circuits and protection schemes used across industrial equipment such as pumps, conveyors, and compressors.
• Retrofit, OEM replacement, and custom MCC configurations — a flexible solution for upgrading legacy systems, maintaining OEM compatibility, or building purpose-built MCC layouts.
• Industrial-grade construction — built to endure the rigors of continuous operation in manufacturing, facilities, and distribution environments.

Why this MCC bucket matters for your operation

• Seamless retrofit path: preserves existing MCC infrastructure while upgrading to modern 400 A, 480 V capabilities, reducing downtime and replacement costs.
• Consistent protection and control: aligns with the Eaton - Westinghouse 11-300 family, ensuring reliable coordination with upstream circuit protection and downstream devices.
• Customization at the system level: supports tailored motor-control configurations to match specific equipment fleets, improving reliability and maintenance planning.
• Long-term value: designed for commercial and industrial settings where dependable power distribution and straightforward maintenance are priorities.

Who benefits most

• Plant engineers and electrical designers installing or upgrading motor control centers in manufacturing, processing, and distribution facilities.
• Electrical contractors integrating OEM-compatible components into new builds or retrofit projects.
• Maintenance teams seeking durable, compatible bucket solutions that minimize downtime during replacements and upgrades.

Practical considerations and tips

Pair this 11-300 Breaker MCC Bucket with compatible Eaton Westinghouse components within the same series to ensure optimal electrical coordination and physical fit. When planning a retrofit, verify bay depth and bus alignment to confirm a smooth, tool-free insertion and removal process. This bucket is purpose-built for applications where 400 A at 480 V is required, making it a dependable choice for high-demand motor control and power-distribution tasks.