This  fridge guard Provides  protection for Fridges, Freezers, Coolers, Pumps against electrical high voltage, surges and spikes. These conditions are harmful to fridges, freezers, pumps and all motor equipment. By disconnecting the power when it is bad, the Refrigerator Protector safeguards against short term and long term damage to ensure higher efficiency from your appliances. 90 seconds start-up delay is built-in to protect against frequent fluctuations to ensure proper compressor shutdown and start-up