Rated Specifications: Frequency: 50 Hz/60 Hz (Universal) 
AC Current: 5 A or 1 A (Universal) 
Power Supply: DC 48 V, ±20%    
DC24V，±20%
Self-Powered, drawing power from the phase current transformer

15 channels of opto-isolated digital inputs 
13 channels of AC measurement and 2 channels of DC measurement 
 6 channels of output, with selectable voltage levels and an optional operation loop function
Device power supply: AC/DC 220V, AC/DC 110V, DC 48V, DC 24V, with an allowable deviation of ± 20% 
Input voltage for switching quantities and status quantities: AC/DC 220V, AC/DC 110V, DC 48V, DC 24V, with a starting voltage of ( 60%～75% ) 

Maximum support for 16 circuit loop intervals
3 channels of remote measurement: IA, IB, IC, or IA, IC, 3I0
6 channels of remote signals: open position, closed position, not stored energy, grounding switch, isolation, standby
2 channels of remote control: trip, close
Voltage and current at 0.2 level, power at 0.5 level, frequency at ±0.01 level

1. Three working power supplies are available, including 85-265VAC, 100-264VDC, 24VDC, and 48VDC.
2. It has 6 switch input circuits.
3. Sampling accuracy: voltage <0.5%, current <0.5%, zero-sequence voltage <0.5%, zero-sequence current <0.01A
4. Remote signal resolution: ≤1ms, anti-shake 1~99999ms.