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Only in stock. Same working day dispatch if ordered before 1pm.

Voltage and Current: 

Phase to neutral voltages 100 to 289V a.c. (not for 3p3w supplies)

Voltages between phases 173 to 500V a.c. (3p supplies only)

  • Basic current (Ib): 10A
  • Max current : 100A
  • Min. Current: 5% of Ib
  • Starting current: 0.4% of Ib

Percentage total voltage harmonic distortion (THD%) for each phase to N ( not for 3p3w supplies)

Percentage voltage THD% between phases (three phase supplies only)

Current THD% for each phase


  • Voltage 0·5% of range maximum
  • Current 0·5% of nominal
  • Frequency 0·2% of mid-frequency
  • Power factor 1% of unity (0.01)
  • Active power (W) ±1% of range maximum
  • Reactive power (VAr) ±1% of range maximum
  • Apparent power (VA) ±1% of range maximum
  • Active energy (Wh) Class 1 IEC 62053-21
  • Reactive energy (VARh) ±1% of range maximum
  • Total harmonic distortion 1% up to 31st harmonic
  • Temperature co-efficient Voltage and current = 0.013%/°C typical
  • Active energy = 0·018%/°C, typical
  • Response time to step input 1s, typical, to >99% of final reading, at 50 Hz.

Power factor, Frequency, and Max. Demand:

  • Frequency in Hz
  • Maximum demanded power since last Demand reset Power factor
  • Maximum neutral demand current, since the last Demand reset (for 3p4w supply only)


Instantaneous power: 

Power:0 to 99999 W
Reactive Power:0 to 99999 VAr
Volt-amps:0 to 99999 VA


Energy Measurements:

Imported active energy:0 to 999999.99 kWh
Exported active energy:0 to 999999.99 kWh
Imported reactive energy:0 to 999999.99 kVArh
Exported reactive energy:0 to 999999.99 kVArh
Total active energy:0 to 999999.99 kWh
Total reactive energy:0 to 999999.99 kVArh


Reference Conditions of Influence Quantities:

Ambient temperature:23°C ±1°C
Input frequency:50 or 60Hz ±2%
Input waveform Sinusoidal:(distortion factor < 0·005)
Magnetic field of external origin:Terrestrial flux



Operating temperature:25°C to +55°C*
Storage temperature:40°C to +70°C*
Relative humidity:0 to 90%, non-condensing
Altitude:Up to 2000m
Warm up time:1 minute
Vibration:10Hz to 50Hz, IEC 60068-2-6, 2g
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