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Parameters
Working voltage: 24VDC ±20%
Maximum working voltage: 36VDC
Power consumption: <2W
Voltage detection: Three-phase AC voltage
Voltage detection overload: 1.2 times
Current detection: Three-phase AC current
Current detection overload: 1.2 times
Switching value detection: 3-way passive input
Temperature detection: 0–8 channel digital temperature sampling
Communication protocols: RS-485 communication, Modbus RTU
Electric energy pulse: LED output
Precision index
AC voltage: 40–400VAC, accuracy ±0.2%FS
AC current: 0–50A / 100A (multiple specifications), accuracy ±0.5%FS
Power accuracy: 1S
Electric energy accuracy: 2S
Temperature accuracy (–10°C to +85°C): ±0.5°C
Temperature accuracy (–55°C to +125°C): ±2.0°C
Electrical characteristics
Measure voltage: 40–400VAC, 1.2 times overload
Measure voltage withstand: No damage under 500V AC / 1 min
Power consumption per voltage line: <0.2VA
Measure current: 0–50A / 100A (multiple specifications)
Power consumption per current line: <0.1VA
Power frequency withstand voltage: 2kV / 1 minute
Insulation resistance: >40MΩ
EMC
Surge immunity – Voltage measurement port: differential mode 6kV, 2Ω (IEC 61000-4-5, Level 3)
Surge immunity – Power port: differential mode 2kV, 2Ω (IEC 61000-4-5, Level 3)
Surge immunity – RS-485 port: differential mode 2kV, 12Ω (IEC 61000-4-5, Level 3)
Electrostatic anti-interference: contact discharge 8kV, air discharge 15kV (IEC 61000-4-2, Level 4)
RE (radiated emission): low frequency (less than 1GHz), CISPR 22 Class B
Fast group pulse – Voltage detection port: IEC 61000-4-4, Level 4
Operating environment
Working temperature: –10°C to +65°C
Storage temperature: –25°C to +70°C
Relative humidity: 5% to 95%RH, no condensation
