Microedge electronics supplies an air conditioner energy saver device, which can save 10% to 50% of energy. The thermostat in the air conditioner provides only a crude control of the temperature and causes wastage of energy. During the failure of thermostat there is again wastage of energy. This device is very economical and the user can get back his money within six months. Protections are provided as optional: over voltage trip, overload trip [with mcb] and re-switching delay of 2 minutes to protect the compressor from overloading. The power saved can be anywhere between 0.2 units per hour to about 1.0 unit per hour depending upon the setting chosen. The installation of aces in necessary in between the mains and the a.C.
