Eaton - Westinghouse 11-300 - Breaker MCC Bucket - 40 A, 600 V, 18" Height, 3 P | AmpState

Engineered for reliable industrial power distribution, the Eaton-Westinghouse 11-300 Breaker MCC Bucket is a purpose-built OEM replacement designed to slot into existing motor control centers with precision. This 3-Pole, 40 A bucket supports 600 V three-phase systems (60 Hz), making it a practical solution for retrofit projects, OEM replacements, and custom MCC configurations in demanding environments—from manufacturing floors to large facilities.

Specifications at a glance

• Brand: Eaton
• Model: 11-300
• Type: Breaker MCC Bucket
• Amp rating: 40 A
• Voltage: 600 V (Three-phase, 60 Hz)
• Height: 18 inches
• Poles: 3-Pole
• Applications: Industrial motor control, retrofit, OEM replacement, and custom MCC configurations

Why this MCC bucket matters

Specifically tuned for Eaton-Westinghouse 11-300 motor control centers, this bucket delivers a guaranteed fit and alignment with the MCC’s bus system, reducing installation time and field adjustment. The 40 A rating is well-suited for common motor starter circuits and control circuits, providing dependable protection and coordination with downstream drives and contactors. Its 18" vertical frame ensures compatibility with standard 11-300 racks, enabling seamless retrofit or expansion without reworking the entire cabinet.

Ideal use cases

• Retrofit aging MCCs to maintain可靠 operation while upgrading safety and performance
• OEM replacement for units in service, preserving existing control architecture
• Custom MCC configurations to accommodate evolving motor loads and control schemes
• New installations in mid-size industrial facilities requiring robust, field-proven components

Installation and practical considerations

Qualified electricians should handle installation, following all applicable electrical codes and safety protocols. Confirm compatibility with your current 11-300 frame, including the 18" vertical height and 3-pole configuration. Ensure secure mounting, proper bus-bar alignment, and solid terminal connections to support reliable operation and ease of future maintenance. Regular inspection of connections and clean contact surfaces will help prevent overheating and arcing, extending the life of your MCC system.

Trust and availability

Available through AmpState, this OEM-grade MCC bucket offers authentic Eaton-Westinghouse performance with the practical convenience of ready-to-ship inventory. Whether you’re upgrading an existing line, replacing a failed bucket, or building a tailored MCC configuration, this breaker bucket provides the dependable foundation your motor control center relies on.