Low power (under-voltage) will certainly damage any refrigeration appliance's compressor. Our Terminator Fridge Guard protects your appliance by disconnecting the power when it goes below unacceptable level. Additionally, there is a delay when power returns to normal. This will ensure that the appliance is not switched on-off repeatedly during fluctuations nor is it subjected to a massive surge normally experienced when power returns after power cuts. Normal Voltage - 230V Current Rating - 13A frequency - 50/60Hz Wait Time - 30sec Ideal For All Electrical & Electronic equipment.