EATON 189888 3-Pole Motor Protection Circuit Breaker, 2.2kW, 4-6.3A

The EATON 189888 is a professional-grade 3-pole motor protection circuit breaker engineered to provide robust control and safety for electric motors. With a power rating of 2.2kW and an adjustable thermal release range of 4-6.3A, this device is designed to monitor electrical currents and disconnect the circuit in the event of an overload or short circuit, preventing potential damage to the motor and associated wiring.

Advantages

This motor protection circuit breaker offers high reliability in demanding industrial and commercial environments. Its precise thermal release mechanism ensures that the motor is protected against thermal stress caused by overloads, while the integrated short-circuit protection provides an immediate response to electrical faults. The compact 3-pole design allows for efficient installation in control panels, contributing to a well-organized and safe electrical infrastructure.

Suitable for

• Industrial motor control systems
• Commercial HVAC equipment
• Pump and fan motor protection
• Conveyor belt drive systems
• General machinery automation

When it may not be suitable

This device is not intended for use with motors exceeding the 2.2kW power rating or those requiring a current setting outside the 4-6.3A range. It is also not suitable for applications requiring specialized protection features such as ground fault detection or advanced electronic communication protocols.

Key specifications

• Number of poles: 3
• Power rating: 2.2kW
• Thermal release adjustment range: 4-6.3A
• Protection type: Overload and short-circuit

How to use

The device should be installed by a qualified electrician within a suitable electrical enclosure. Mount the breaker onto a standard DIN rail and connect the incoming power supply to the top terminals and the motor leads to the bottom terminals. Once installed, use the adjustment dial on the front of the unit to set the thermal release current to match the rated full-load current of the connected motor. Regularly test the mechanical operation to ensure the trip mechanism functions correctly.

What to consider before purchase

• Verify the full-load current rating of your motor matches the 4-6.3A adjustment range.
• Ensure the power rating of your motor does not exceed 2.2kW.
• Check the available space in your control cabinet for DIN rail mounting.
• Confirm that the environmental conditions meet the manufacturer's operating temperature and humidity requirements.

Usage recommendations

Always ensure the power supply is disconnected before performing any installation or maintenance tasks. Periodically inspect the terminals for tightness and ensure the device is free from dust or moisture accumulation to maintain optimal performance.