Quick Answer: Setting a timer switch with pins involves inserting timing pins around a 24-hour clock dial to create on/off schedules, connecting the switch to your electrical circuit following local electrical codes, and testing the programmed schedule for proper operation. A time switch, also called a timer switch, is an electrical control device that automatically turns a circuit on or off according to a preset time schedule. In this practical guide you'll learn what time switches do, the main types, how to specify the right unit for the load and environment, and where they add the most value across. Most time relays, including those from C-Lin, have two main sets of terminals: Coil Terminals (A1 and A2): These are the power input terminals for the relay's internal coil. When voltage is applied to these terminals, the timer function is initiated, and the internal contacts are switched.
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