The load is connected to the network either directly through the relay contacts or through a magnetic starter, depending on the power. The relay can operate in four independent modes: voltage relay; minimum voltage relay; maximum voltage relay; time relay with delay for actuation. The front panel of the device displays a load status indicator (on/off) and a three-bit seven-segment indicator, which, depending on the state of the device, displays: current voltage value; the exact value of the parameter to be set; time remaining until the load is switched on again; emergency disconnection of the load (flashing of the current voltage value). Potentiometer handles located on the front panel allow the user to set: response threshold by maximum allowable voltage value; response threshold by the minimum allowable voltage value; time delay of load switching on after network parameters recovery. The RN-102 includes a power filter that protects the connected load from high-voltage pulse interference.