Programmers are very useful for automatically turning on or off (after a set time) one or several electrical devices, in a centralized manner or from several different locations. Available in analog, digital forms, etc., the various types of timers have switches and allow for setting programming by hour, day, etc.
For the electrical panel, the presence of clocks, timers and bells is especially practical in terms of energy savings. This kind of device indeed allows for programming the on/off status for household appliances that do not have such capability originally, by closing or opening the circuit they depend on. When the machines in question have a relatively high consumption, this presents undeniable benefits. Able to also be installed in the electrical panel, the bells complement the function of instruments like timers, clocks… On another note, the switch at the programmer level generally has 3 positions: ON, AUTO, and OFF. In automatic position, the device functions according to the programming you have determined beforehand, otherwise the circuit is directly turned on or off. Moreover, some models of clocks, timers, and programmers offer seasonal time changes (summer/winter). Brands such as LEGRAND, for example, offer various models of timers as well as modular bells among which you will find the most suitable for your installation's configuration.