The PCM-08 time relay is used to
control the STAR-DELTA contactor
switch. It is applied in three-phase motor
control systems. This control method
allows to reduce starting currents
in case of motor units with a capacity
of more than 4-5 kW and additionally it
provides safety. The PCM-08 device has
two independent relay outputs activated
according to the settings of P1-P3 potentiometers.
It is possible to adjust the
starting time (in the STAR system) and
time interval of star to delta switching.
Relay operation is triggered by applying
power supply voltage to the L, N supply
terminals. The device is designed to be
mounted in distribution boards (TH35
rail). The LEDs on the front panel indicate
power supply (LED green), and
device operating mode (LED red).