Eaton Westinghouse 11-300 MCC Bucket 150A 480V 36" 3P Breaker

Engineered for demanding industrial environments, the Eaton - Westinghouse 11-300 Breaker MCC Bucket is the modular solution you need to power modern motor control centers. Designed to integrate seamlessly with 11-300 frames, this bucket brings reliable, scalable distribution to pumps, fans, conveyors, and other motor-driven loads in manufacturing, processing plants, and large facilities.

Key specifications at a glance

• Brand: Eaton
• Model: 11-300
• Type: Breaker MCC Bucket
• Amp Rating: 150 A
• Voltage: 480 V (Three-phase, 60 Hz)
• Height: 36 inches (vertical frame)
• Poles: 3P
• Applications: Industrial Motor Control, Retrofit, OEM Replacement, and custom MCC configurations

What makes this MCC bucket stand out

• Direct-fit for 11-300 MCCs — Precisely matched mounting patterns and bus interface to ensure secure, dependable connections within Eaton-Westinghouse 11-300 motor control centers.
• Retrofit and OEM replacement ready — Ideal for upgrading aging installations or refreshing an OEM line without overhauling the entire MCC framework.
• 36" vertical frame for versatile configurations — The tall, modular design supports a variety of layout and spacing needs, giving you room to scale as your load profiles evolve.
• Solid three-phase performance — Rated for 480 V three-phase systems, it accommodates multiple motors and high-inrush applications common in industrial environments.
• 3-pole design aligns with standard motor loads — Simplifies wiring, protection coordination, and control logic across typical commercial and manufacturing processes.
• Reliable, field-proven construction — Built to endure the rigors of continuous operation in power distribution and motor control applications, helping minimize downtime and maintenance cycles.

Ideal use scenarios

• Upgrading an aging MCC to support contemporary motor loads without replacing the entire center.
• OEM replacements where maintaining exact fit and interlocks is critical for system integrity.
• Custom MCC configurations for facilities with diverse machinery fleets, offering tailored protection and control layouts.
• Industrial and commercial facilities seeking consistent, dependable motor control performance with standardized components.

Why it matters for your operation

Choosing the Eaton - Westinghouse 11-300 Breaker MCC Bucket means investing in a component that directly impacts uptime and safety. Its precise compatibility with the 11-300 family reduces installation risk, while its 150 A at 480 V rating covers a wide range of motor control tasks without over-specifying protection. The 36" vertical frame supports flexible, future-ready MCC configurations, allowing you to add circuits or adapt to new equipment without costly rework.

Practical tips for procurement and installation

• Confirm the bucket’s fit with your existing 11-300 MCC frame and bus arrangement to ensure a straightforward retrofit or replacement.
• Plan for a three-pole configuration to match your motor requirements and protection schemes, using the 480 V three-phase rating as the baseline for circuit design.
• Consider future scalability—the 36" height supports adding circuits or reconfiguring protection strategies as your plant evolves.
• Coordinate with your maintenance team to align upstream protections (fuses, breakers, and interlocks) with the MCC bucket’s electrical interface for safe, reliable operation.

For facilities seeking a dependable, purpose-built solution within the Eaton-Westinghouse ecosystem, the 11-300 Breaker MCC Bucket from AmpState delivers precise fit, straightforward retrofit capability, and a clear path to scalable motor control center configurations.