Here is an electronic switch that can be used to switch on both the air-conditioner as well as fan of your room, one by one. The circuit consists of power supply and control sections. The power supply ...

The White-Rodgers SureSwitch™ relay, model number 49P11-843, replaces the function of a contactor and short-cycle timer with a reliable sealed relay. It increases the reliability of air conditioning ...

Relays are electromechanical devices that use a magnetic solenoid to actual a switch. When current is passed through the solenoid coil, it produces a magnetic field. The magnetic field is strengthened ...