Eaton Undervoltage Release with Side-Mounted Terminal Block for NZM1 Circuit Breakers (259442)

Automatically trips the NZM1 circuit breaker when control voltage drops, with a rated operating voltage of 24-30 V DC.

Overview

The Eaton Undervoltage Release (MPN 259442) is a voltage-dependent accessory designed for internal side-mounting within Eaton NZM1 series circuit breakers. It ensures the breaker opens when the control voltage falls below a threshold, providing reliable protection in safety circuits and remote tripping applications.

What stands out

• Compatible with Eaton NZM1 circuit breakers
• Rated operating voltage: 24-30 V DC
• Automatic reset allows breaker closure once voltage returns
• Low power consumption of approximately 3 W
• Connection via screw terminals

Technical details

• Accessory type: Undervoltage release
• Mounting position: Internal, side-mounted
• Connection method: Screw terminals
• Power consumption: Approx. 3 W
• Reset type: Automatic
• Operating temperature range: -25°C to +70°C
• Storage temperature range: -40°C to +80°C
• Degree of protection (installed): IP20
• Voltage type: DC
• Application: Safety circuits, emergency stop, remote tripping
• Standard compliance: IEC/EN 60947-2

Our verdict

A reliable undervoltage release for NZM1 breakers, offering automatic tripping and reset with low power consumption. Suitable for safety-critical applications.