Eaton - Westinghouse 11-300 - Breaker MCC Bucket - 40 A, 240 V, 6" Height, 3 P | AmpState

The Eaton - Westinghouse 11-300 Breaker MCC Bucket is purpose-built to drop into Eaton Westinghouse 11-300 motor control centers, delivering reliable motor protection and streamlined power distribution for stubborn industrial environments. With a 40 A rating at 240 V and a compact 6" vertical frame, this 3-pole bucket is ideal for spaces where robust control meets efficient footprint.

Key capabilities that matter in real-world applications

Designed for retrofit, OEM replacement, and flexible MCC configurations, this bucket keeps downtime to a minimum while restoring critical motor control functions. It’s the practical choice when upgrading aging MCCs, reconfiguring layouts for new equipment, or maintaining standardized protection across multiple lines.

Core specifications

• Brand: Eaton
• Model: 11-300
• Type: Breaker MCC Bucket
• Amp rating: 40 A
• Voltage: 240 V (Three-phase, 60 Hz)
• Height: 6" vertical frame
• Poles: 3 P
• Applications: Industrial motor control, retrofit installs, OEM replacements

Why this bucket stands out

• Precise compatibility with 11-300 MCCs: Engineered to align with the original Eaton-Westinghouse design, ensuring secure mounting, electrical clearance, and consistent performance.
• Efficient retrofit solution: Reduces system downtime during replacement projects by matching form, fit, and function with existing cabinets.
• Versatile for custom MCC configurations: Supports tailored power distribution layouts, enabling scalable protection for mixed loads and motor-driven equipment.
• Durable, field-ready construction: Built to withstand industrial environments, delivering dependable operation in manufacturing floors, processing plants, and commercial facilities.

Ideal use cases

• Upgrading legacy motor control centers to current protection standards without a full MCC overhaul.
• OEM replacement scenarios where exact hardware compatibility reduces installation complexity.
• Retrofit projects where space is tight and a compact 6" frame is required to fit existing racks and bus arrangements.
• New or expanded MCC layouts that demand consistent 3-pole protection across multiple drives and motors.

Practical tips for installation and maintenance

• Verify each module’s alignment with the 11-300 series MCC frame before installation to ensure proper electrical contact and safe enclosure fit.
• Plan for three-phase, 60 Hz operation to match equipment loads and avoid nuisance tripping or nuisance alarms.
• Use as part of a broader maintenance strategy: pair with compatible breakers, bus bars, and switchgear to sustain coordinated protection across the drive train.
• Document the exact bucket model (11-300) and specs in your asset registry for future OEM replacements or retrofits.

For facilities relying on precise, durable motor control protection, the Eaton - Westinghouse 11-300 Breaker MCC Bucket provides a proven, space-efficient solution that aligns with existing MCC infrastructure while enabling flexible, future-ready configurations.