Function: Impulse switches are electromechanically controlled switches used to control medium power single or multi-phase loads, while the control itself can be of (very) low power. The device switches between 2 stable positions each time a (short) pulse excites its control circuit. Application: Mainly used to switch lighting and heating systems and/or to achieve simplified wiring when the load is to be controlled at reduced voltage and/or from more than two different locations. Features: In addition to normal operation by electrically energizing the coil, manual operation is possible at any time. The switch position is indicated by the position of the front lever for all devices. The version with central control is designed to switch several devices to the on or off position at the same time, regardless of the current status of each individual device. Even in this case, the possibility of switching directly on the device remains. The safety terminals are equipped with captive Pozidriv screws and have an IP20 protection rating. A built-in auxiliary contact, a built-in central control module and a spacer are available. The use of a large number of illuminated pushbuttons is possible. Cover caps for the connection terminals are available. DIN rail mounting: can be used in vertical/horizontal position