The Eaton NZM 4-XR is a high-performance molded case circuit breaker (MCCB) from the renowned NZM 4 series, specifically designed and rated for reliable circuit protection in low-voltage three-phase electrical systems with a nominal voltage of 208-240V AC, 50/60 Hz.
Parameter Specification
Product Standard IEC/EN 60947-1, IEC/EN 60947-2
Type Molded Case Circuit Breaker (MCCB)
Mounting Version Fixed or Draw-Out (Plug-in)
Communication Capability Yes, via optional COM modules (e.g., Modbus RTU, Profibus DP)
2. Electrical Ratings
Parameter Specification Notes
Rated Operational Voltage (Ue) 240 V AC For use on 208 V - 240 V AC, 3-phase systems.
Rated Insulation Voltage (Ui) 690 V / 750 V AC
Rated Impulse Withstand Voltage (Uimp) 8 kV
Frequency 50 / 60 Hz
Utilization Category Category A (per IEC 60947-2)
Overvoltage Category III