Eaton 189902 3-Pole Motor Protection Circuit Breaker 2.2kW 4-6.3A

The Eaton 189902 is a robust 3-pole motor protection circuit breaker engineered to provide reliable control and comprehensive protection for electric motors. With a power rating of 2.2kW and an adjustable thermal release range of 4 to 6.3A, this device is specifically designed to safeguard electrical systems against the risks of overloads and short circuits. Its compact and durable construction ensures consistent performance in demanding industrial and commercial environments, contributing to the longevity and operational safety of connected equipment.

Advantages

This motor protection circuit breaker offers high operational reliability by effectively preventing motor damage caused by thermal overloads or electrical faults. The adjustable current range allows for precise calibration to match the specific requirements of the motor, ensuring optimal protection levels. Its 3-pole design facilitates seamless integration into standard three-phase electrical systems, while the high-quality manufacturing standards associated with the Eaton brand guarantee long-term durability and consistent switching performance under various load conditions.

Suitable for

• Industrial motor control applications
• Commercial HVAC systems
• Pump and fan motor protection
• General electrical distribution boards

This device is not suitable for applications requiring higher power ratings than 2.2kW or for motors operating outside the specified current range of 4 to 6.3A. It is also not intended for use in environments with extreme moisture or corrosive gases unless housed in an appropriate protective enclosure.

Key specifications

• Number of poles: 3
• Power rating: 2.2kW
• Adjustable thermal release range: 4 to 6.3A
• Protection type: Overload and short-circuit protection

Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is typically mounted on a standard DIN rail within a control cabinet. Ensure that the thermal release is calibrated to the nominal current of the motor before putting the system into operation. Regularly inspect the connections to ensure they remain tight and free from oxidation.

What to consider before purchase

• Verify the nominal current of your motor matches the 4-6.3A adjustment range
• Ensure the power rating of 2.2kW is sufficient for your specific application
• Check the available space in your electrical cabinet for DIN rail mounting
• Confirm compatibility with your existing three-phase power supply

For optimal performance and safety, always ensure the circuit breaker is correctly sized for the motor load and that all electrical connections are tightened to the manufacturer's specified torque settings.