Each bus system consists of actuators and sensors. EIB/KNX actuators are active switching / drive elements converting input signals into a switching command (analogue, digital). In principle, like a conventional relay, in which the coil is intelligently controlled by bus signals. EIB, KNX actuators are often referred to as actuators or binary outputs. There are, for example, switching actuators, dimming actuators, blinds actuators, shutter actuators, heating actuators, analog actuators and many more. Actuators are available for installation in the electrical distribution. Then they have the addition 'REG' for top hat rail-mounted installation or as a flush version 'UP' for installation in an installation box or branch box or as a built-in version 'EB' for integration in ducts or similar devices. However, also for built-in versions additional protection must be ensured depending on the type of installation. EIB, KNX actuators can be single-channel or multi-channel. Actuators can, for this reason, switch at least one or several different operating devices (luminaires, sockets, motors) and have different characteristics with regard to software (application) and technical application (for example load capacity of the switching channels, 6A, 10A, 16A and load type: ohmic Load, inductive load or capacitive load). All KNX devices are parameterized with the standardized software ETS. In this eibabo category you will find, for example, actuators of the brands ABB, Berker, Busch-Jaeger, Eaton, EIBMARKT, Eltako, Gira, Hager, Jung, Lingg & Janke, MDT, Merten, Siemens and Theben for various automation systems. At eibabo you can look forward to a huge and constantly updated selection of KNX actuators and buy these cheap as a private customer or business customer and have them delivered worldwide. We are happy to help. When selecting the right actuators, you should pay attention to the loads you need and, on the other hand, to the desired functionalities that an actuator provides depending on the manufacturer. For example, no actuator with a max. load of 6A ohmic load and 3 A capacitative load should be used for switching electronic devices (fluorescent lamps with ECG), since these devices can have a very high inrush current for a brief time (up to 100 A for 3-5 ms), which can cause the contacts to stick. For such loads, it is recommended to use C- load actuators. However, very low loads can lead to wear on high-load C load contacts because the self-cleaning effect no longer applies. Actuators with high load capacity of the channels often also require more robust relays with audible switching actions. This should be considered when electrical distributions are installed near residential rooms. Multichannel 10-16 Ampere actuators for ohmic loads are most commonly used in the Smart Home.