Eaton Undervoltage Release NZM2/3-XU24DC 24V DC (259509)

In industrial power distribution, a voltage dip can cause motors to stall, contactors to chatter, or processes to drop out unexpectedly. The Eaton NZM2/3-XU24DC undervoltage release solves this by automatically tripping the connected NZM2 or NZM3 circuit breaker when the control voltage falls below a safe threshold. This protects downstream equipment from undervoltage conditions and enables safe re-energization sequences.

Who is it for

Electrical engineers, panel builders, and maintenance teams working with Eaton NZM2 or NZM3 moulded case circuit breakers in industrial control panels, machine tools, or building infrastructure. It is particularly useful where automatic load shedding or safety interlocks are required on voltage loss.

Main features

• Undervoltage release for Eaton NZM2 and NZM3 circuit breakers
• Rated control voltage: 24 V DC
• Trips the breaker when voltage falls to 35–70% of rated value (8.4–16.8 V DC)
• Low power consumption: 3 W
• Internal mounting within the breaker, no external wiring
• Operating temperature range: -25°C to +70°C

Specifications

• Product type: Undervoltage release
• Series compatibility: Eaton NZM2, NZM3
• Rated control voltage (Ue): 24 V DC
• Voltage type: DC
• Release type code: XU
• Power consumption: 3 W
• Undervoltage trip range: 8.4–16.8 V DC (35–70% of Ue)
• Standards: IEC/EN 60947-2
• Degree of protection: IP20 (when installed in breaker)
• Operating temperature range: -25°C to +70°C

Tips

Always verify that the control voltage matches the supply voltage of your application. For safety circuits, combine with a shunt release or auxiliary contact to signal the tripped state to a PLC or monitoring system.