Single-Phase and Three-Phase Handheld Power Meter with Harmonic Analysis Up to 20th Order

Hioki clamp meters are best in class handheld current and voltage meters for safely and accurately measuring power lines. The 3286-20 clamp on power meter can measure voltage, current, power, power factor, phase angle, reactive power or frequency, as well as detect phase sequence on live lines at any desired point of a single-phase circuit or three-phase circuit.


Key Features

  • Measure single-phase 600 kW lines and up to the 20th harmonic level
  • Active/ reactive/ apparent power, power factor, phase detection, frequency, harmonic waveform value, or waveform peak value
  • Simple checking of three-phase lines (balanced with no distortion)

Model No. (Order Code)

3286-20 Discontinued
Note: The 3286-20's three-phase power measurement method calculates and displays the power values for a sine wave input at 50 Hz/60 Hz, assuming it is balanced and there is no distortion. Accurate measurement is not possible on a three-phase line if it is not balanced, for example when controlled by an inverter or thyristor.
Since there is no integration function, it is not possible to measure total energy consumed (Wh).

Basic specifications

Accuracy guaranteed: 1 year
Measurement line Single-phase, Three-phase (balanced with no distortion)
Measurement items Voltage, Current, Voltage/current peak, Active/ reactive/ apparent power, Power factor, Phase angle, Reactivity, Frequency, Voltage/current harmonic levels
Voltage ranges
30 - 1kHz
150.0 V to 600 V, 3 ranges
Basic accuracy: ±1.0 % rdg. ±3 dgt. (at 45 - 66 Hz, True RMS)
Current ranges
45 - 1kHz
20.00 A to 1000 A, 3 ranges
Basic accuracy: ±1.3 % rdg. ±3 dgt. (at 45 - 66 Hz, True RMS)
Power ranges
80 - 600 V
1 - 1000 A
[Single phase] 3.000 kW to 600.0 kW
Basic accuracy: ±2.3 % rdg. ±5 dgt. (at 50/60 Hz, Power factor = 1)
[Balanced three phase] 6.000 kW to 1200 kW
Basic accuracy: ±3.0 % rdg. ±10 dgt. (at 50/60 Hz, Power factor = 1)
Harmonic levels Voltage/current harmonic levels up to 20th, Content factor, Total harmonic distortion ratio
Other functions [Phase angle] Forward 90.0 ° to 0 to delay 90.0 °
[Power factor] Forward 0 to 1.000 to delay 0
[Frequency] 30.0 Hz to 1000 Hz
Waveform peak, Phase detection, Max. / Min. value record, Data hold, Auto power off, RS-232C output (Options are discontinued, so cannot use RS-232C)
Display LCD, Max. 6000 digits, Display refresh rate: 1 time/s (Normal) 1 time/3s (Slow), 1 time/2s (Harmonic level)
Power supply Stacked alkaline battery (6LR61, 6LF22) ×1, Continuous use: 25 hours (using 6LR61)
Core jaw dia. φ 55 mm (2.17 in) or 80 mm (3.15 in) × 20 mm (0.79 in) bus-bar
Dimensions and mass 100 mm (3.94 in) W × 287 mm (11.3 in) H × 39 mm (1.54 in) D, 650 g (22.9 oz)
Included accessories Carrying case 9245 ×1, Voltage cord L9635-01 ×1, Hand strap ×1, Stacked alkaline battery (6LR61) ×1, Instruction manual ×1

Included accessories (1)