ARM93 Three Phase Din Rail Energy Meter

Product Description


  • Suit for 110V, 120V, 220V, 230V, 240V AC low voltage system
  • Measure V, I, P, Q, S, PF, kWh, kvarh, Multi-tarif energy value
  • 7 +1 digits LCD display (9999999.9 kWh)
  • Record historical energy for latest 31 days (per 15min.), latest 12 months and latest 10 years
  • KWh accuracy class 0.5s or 1.0
  • Support over-voltage timing, under-voltage timing, over-current timing function
  • 2 LED indicates pulse output (Settable for kWh or kvarh)
  • LCD display prompt for phase sequence error
  • 3 keys for programming, 35mm DIN rail installing, standard DIN ED5002
  • RS485 port, MODBUS-RTU or DTL645 protocol (selectable)
  • Standard: IEC62053-21/ 23



Rated current Direct: 5(63)A Or 5(6)A via CT
Rated voltage AC 220V ph-N or 120V ph-N (Optional)
Frequency 50/60Hz (Optional)
Burden v <2W
Power supply Self supply (Note: RS485 won’t work, when connect 1 phase)

For 220Vac (L-N), range: 176~276Vac

For 120Vac (L-N), range: 96~144V

Communication RS485 serial, Modbus-RTU and DTL645

Baud rate: 2400, 4800, 9600, 1200 (option)

Address: 1~247

Environment Operating temperature: -20°C~ +55°C

Storage temperature: -40°C~ +70°C

Humidity: 5%~95% non-condensing

Connection mode 3-phase 4-wire
Pulse output 2 channels (Settable for kWh or kvarh)
Starting Current 0.4%Ib (direct connect), 0.2%Ib (via CT)
Power Frequency withstand voltage 4kV
Accuracy kWh Accuracy: Class 1 for 3×5(63)A direct

kWh Accuracy: Class 0.5s for 3×5(6)A via CT

Pulse constant 1000 imp
Dimension (L*W*H) 72*100*65mm
Wire Diameters 7mm * 7mm (16mm2)
Standard (EMC) Electrostatic discharge immunity test   IEC 61000-4-2,Level 4


Radiated immunity test       IEC 61000-4-3,Level 3


Electrical fast transient/burst immunity test   IEC 61000-4-4,Level 4


Surge immunity test (1, 2/50μs~8/20μs)  IEC 61000-4-5,Level 4


Conducted emission                       EN55022, Class B


Radiated emission                          EN55022, Class B