Technical Parameters Parameter Specification Product Series Eaton NZM4 Product Type Electronic Trip Unit with Communication Rated Current (In) of Frame 1100 A (This is the fixed rating for this specific trip unit) Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Frequency 50/60 Hz Protection Functions L (Long-time), S (Short-time), I (Instantaneous), G (Ground Fault) Communication Protocol Modbus RTU (via RS-485 interface) - Verify specific protocol from datasheet Setting Adjustment Programmable via front interface or communication network Display Typically includes an LCD for status and fault indication Mounting Integrated into a compatible NZM4 circuit breaker frame Standards Compliance IEC 60947-2