The Refrigerator Guard safeguards your refrigerator, freezer, or other equipment by cutting off the power whenever the voltage rises or falls to an unsafe levels because either high or low voltage will undoubtedly harm any electrical or electronic equipment. Specifications:Colour: White & BlueAmps: 5AVoltage: AC 220 - 240VMaterial: ABS plastic Over-voltage Disconnect (260V)Over-voltage Reconnect (250V)Under-voltage Disconnect (160V)Under-Voltage Reconnect (170V)Mains Spike Discharge Amps (6.5kA)Mains Spike Response Time >10nsSpike protection (160J This Fridge Guard protects against low voltage, brown-outs and voltage dips. These conditions are harmful to fridge and freezer pumps and all motor equipment. The Fridge Guard protects your appliance by disconnecting the power when it goes below unacceptable level. By disconnecting the power when it is bad, the Fridge Guard safeguards against short term and long term damage to ensure higher efficiency from your appliances. It will then will re-connect automatically only after the supply has returned to acceptable limits after a 3-minute wait time. 90 seconds start- up delay is built-in to protect against frequent fluctuations and to ensure proper compressor shutdown and start-up.