Phase indicator - Kyoritsu 8031 type

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Code: Kyoritsu 8031

The phase indicator Kyoritsu 8031 is an electronic device that verifies the phases correspondence in three-phased LV electrical networks and for correct power supply of the AC three-phased electrical motors.

The operating mode of the device is simple: the device is connected at the terminals of the installation that needs to be verified and it is observed the indicator`s rotation. If the succession of the phases is correct, the indicator will be rotated clockwise and if the succession is incorrect, the indicator will be rotated counterclockwise. The voltage presence is optically signalized with the aid of the three LEDs (R,S,T) from the main panel.

Parameter name


Nominal operating voltage (V AC)

110 – 600

Maximum countinuous operating time

Maximum 5 minutes when the voltage is higher than 500 V AC

Frequency (Hz)


Test voltage (V/1min AC)


Dimensions (mm)

106 x 75 x 40

Weight (kg)


Kyoritsu 8031 is composed from:
– Device with rotating disk for phase correspondence, luminous indicators for the three phases (R, S, T) and test button.
– Connection conductors – length 1,5 m – 3 pieces;
– Contact probes – 3 pieces;
– Alligator clamps – 3 pieces.