Eaton - Westinghouse 11-300 - Breaker MCC Bucket - 40 A, 208 V, 18" Height, 3 P | AmpState

Designed to drop into Eaton-Westinghouse 11-300 motor control centers, this Breaker MCC Bucket delivers dependable power distribution and motor protection in a compact 18" vertical frame. With a 40 A rating at 208 V, it’s built to handle demanding industrial and commercial environments while preserving tight panel geometry and reliable performance.

Why this bucket stands out

• Plug-and-play retrofit: Engineered for straightforward OEM replacement and retrofit projects, helping you minimize downtime during upgrades or repairs.
• Flexible MCC configurations: The 18" frame and 3-pole design support custom motor control center layouts to match your specific protection and control needs.
• Three-phase, 60 Hz operation: Suited for standard industrial power distribution and motor control systems, ensuring compatibility with existing infrastructure.
• Durable, field-ready construction: Built to withstand the rigors of active plant floors, delivering stable electrical performance under varying loads and conditions.

Specifications at a glance

• Brand: Eaton
• Model: 11-300
• Type: Breaker MCC Bucket
• Amp Rating: 40 A
• Voltage: 208 V (Three-phase, 60 Hz)
• Height: 18"
• Application: Industrial Motor Control / Retrofit / OEM Replacement

Ideal for maintenance teams, electrical engineers, and OEMs looking to extend or modernize a Westinghouse/Eaton MCC lineup without a full panel redesign. This bucket is an effective upgrade path for aging equipment or for implementing targeted protection and control enhancements on critical motor feeds.

Practical installation and maintenance tips

• Confirm physical compatibility with your existing 11-300 MCC framework before ordering—the 18" height is designed for standard vertical rails and mounting provisions within this class of MCC.
• Ensure the bucket’s 3-pole configuration aligns with your bus connections and protective relay schemas during retrofits or upgrades.
• Keep a spare bucket on hand for mission-critical lines to minimize downtime during failures or scheduled replacements.
• During retrofit, validate continuity and trip settings in a controlled environment to avoid unexpected motor trips during commissioning.