Technical Parameters Parameter Specification Product Series Eaton NZM4 Product Type Electronic Trip Unit (Release) for Air Circuit Breaker Rated Current (In) of Frame 100 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 Overload), S (Short-time), I (Instantaneous), G (Ground Fault) Communication Capability No (The "XKM" version is a standard electronic release without communication) Trip Setting Adjustment Via DIP switches and potentiometers on the release unit Display Typically includes an LED or LCD display for status and fault indication Mounting Integrated into a compatible NZM4 circuit breaker frame Standards Compliance IEC 60947-2