General Data Product Series: Emax 2 Frame Size: E1.2 (designed for currents up to 1600A) Rated Current (Iu): 1600 A Number of Poles: 3-Pole (3P) Mounting Type: Fixed (F1 = Fixed version 1) Type of Release: Electronic Trip Unit (Standard) 2. Electrical Characteristics Rated Operational Voltage (Ue): AC 50/60 Hz: Up to 690 V AC Rated Insulation Voltage (Ui): 1000 V Rated Impulse Withstand Voltage (Uimp): 12 kV Rated Ultimate Short-Circuit Breaking Capacity (Icu): At 415V AC: 50 kA (typical) At 690V AC: 25 kA (typical) （具体值取决于具体型号后缀和配置，请以实际铭牌和目录为准） Rated Service Short-Circuit Breaking Capacity (Ics): Usually a high percentage of Icu (e.g., 100% at certain voltages). Electrical Durability: Up to 10,000 mechanical operations. 3. Trip Unit & Protection Functions Standard Trip Unit: PR122/P or PR123/P Protection Functions (Adjustable via dials or software): L - Long-Time Overload Protection: Adjustable current (Ir) and time delay (tr). S - Short-Time Short-Circuit Protection: Adjustable threshold (Isd) and time delay (tsd) for selectivity. I - Instantaneous Short-Circuit Protection: Fixed or adjustable threshold (Ii). G - Ground Fault Protection: Adjustable threshold (Ig) and time delay (tg) (requires external CT for PR122). Measurement: Continuous monitoring of currents (I), voltages (V), power (kW, kvar, kVA), energy (kWh), frequency (Hz), power factor (cos φ), etc. 4. Communication & Accessories Communication Ready: The trip unit has a built-in communication port. Protocols: Supports major fieldbus systems via plug-in communication modules (e.g., Modbus RTU, Profibus DP, DeviceNet, Ethernet/IP). Standard Accessories: Shutter: For terminal protection. Auxiliary Contacts (OF/SD): Signaling contacts (e.g., 2 NO + 2 NC). Undervoltage Release (UVR): Optional. Shunt Trip (ST): Optional for remote opening. Spring Charging Motor: For remote or automatic spring charging. Mechanical Padlocking: For safety lockout (LOCK-OFF-LOCK). 5. Mechanical & Environmental Mounting: Fixed installation on a panel or enclosure backplate. Terminals: Front or rear horizontal/vertical cable connections, suitable for busbars or large cables. Degree of Protection: IP20 for the breaker itself (requires enclosure for full protection). Ambient Temperature: -25°C to +70°C for operation (derating may apply above 40°C). Standards Compliance: IEC/EN 60947-2, CE Marked.