Eaton - Westinghouse 11-300 - Breaker MCC Bucket - 400 A, 480 V, 24" Height, 3 P | AmpState

Engineered for industrial power distribution, the Eaton - Westinghouse 11-300 Breaker MCC Bucket from AmpState is a purpose-built solution for 400 A, 480 V service within Eaton-Westinghouse 11-300 motor control centers. Boasting a compact 24-inch vertical frame, this bucket is designed to integrate with retrofit projects, OEM replacements, and custom MCC configurations, helping you modernize or expand your motor control capacity without costly redesigns.

• Brand: Eaton
• Model: 11-300
• Type: Breaker MCC Bucket
• Amp Rating: 400 A
• Voltage: 480 V (Three-phase, 60 Hz)
• Height: 24 inches
• Poles: 3P
• Application: Industrial Motor Control / Retrofit / OEM Replacement

Why this MCC bucket stands out

• Drop-in compatibility with Eaton-Westinghouse 11-300 MCCs minimizes wiring modifications and reduces installation time, so you can bring new life to existing systems quickly.
• Retrofitting made practical — the 24-inch vertical frame is purpose-built for space-constrained spaces while delivering the reliability required in demanding industrial environments.
• OEM replacement precision ensures consistent electrical characteristics and wiring layouts, helping maintain performance and service intervals without custom engineering.
• Custom MCC configurations support flexible layouts for plant expansions, new equipment integration, or unique motor control schemes.

Who should consider this bucket

• Plant engineers planning power distribution upgrades or capacity expansion
• Maintenance teams performing OEM replacements during scheduled outages
• Electrical contractors handling retrofit projects in manufacturing, processing, and facilities management
• OEMs designing modular motor control solutions requiring reliable, standards-aligned MCC components

Practical use cases

• Upgrading a legacy MCC to 400 A at 480 V to support higher-tloored or upgraded motors
• Replacing worn or obsolete MCC buckets within existing 11-300 frames to restore performance
• Incorporating a dedicated 3-pole breaker bucket into new OEM MCC configurations for scalable motor control

Installation and upkeep tips

• Verify the 24-inch vertical frame matches your existing MCC footprint to ensure a seamless retrofit
• Confirm three-phase 480 V supply compatibility (60 Hz) and ensure proper bus alignment for reliable connections
• Inspect mounting hardware and protective enclosures during installation to maintain safety and compliance
• Maintain a spare 11-300 MCC bucket on hand for proactive maintenance and reduced downtime

With the Eaton - Westinghouse 11-300 Breaker MCC Bucket, you gain a robust, versatile solution that aligns with your industrial power distribution needs. It delivers dependable 400 A capacity at 480 V within a compact 24" frame, designed to support retrofit, OEM replacement, and custom MCC configurations—empowering smarter upgrades, easier maintenance, and longer system life.