Eaton 140D930H03 930A 3-Pole 480 V Circuit Breaker

Introducing the Eaton 140D930H03 930A 3-Pole 480 V Circuit Breaker — a robust, high-capacity protection device designed for demanding industrial environments. This unit delivers reliable overcurrent protection across all three phases, helping keep heavy loads safe and your electrical system running smoothly.

Key specifications at a glance:

• Current rating: 930 A
• Poles: 3
• Voltage rating: 480 V AC
• Part number: 140D930H03

Why this matters

In facilities with large motors, conveyors, or high-power feeders, a single 930 A circuit breaker can prevent costly downtime by quickly interrupting fault currents. The 3-pole design ensures synchronized protection across all phases, reducing the risk of unbalanced faults that can damage equipment or trip more circuits than necessary.

Ideal use cases

• Main feeder protection for 3-phase 480 V electrical distributions in manufacturing, processing, or heavy industrial environments.
• Protecting large motors and drive systems connected to 480 V networks.
• Replacement part within Eaton 140D series installations, supporting consistent performance and serviceability.

Practical considerations

When selecting a circuit breaker like the Eaton 140D930H03, ensure your panel and conductors are rated for 480 V operation and that the installation follows local electrical codes. This unit is designed for environments where uptime matters and overload protection must be precise and dependable.