Technical Parameters Parameter Category Description / Value Brand & Series Eaton, NZM Series Model Number NZMH4-AE1250 Number of Poles 4-Pole Rated Current 1250 A (Frame Size) Rated Operational Voltage (Ue) Up to 690V AC Rated Ultimate Breaking Capacity (Icu) Typically 65 kA / 85 kA at 415V AC (Confirm with specific datasheet) Trip Unit Type AE - Advanced Electronic Trip Unit with LCD Display Protection Functions L - Long-time Delay (Overload) S - Short-time Delay (Short-Circuit) I - Instantaneous (Short-Circuit) G - Ground-Fault (Earth Leakage) Standards Compliance IEC 60947-2