The multi-function actuator is a multi-output module that integrates multiple output functions, including switch output, curtain DC/AC output, fan output and valve output. The functions of this module can be configured freely according to requirements. For example, part of the output is used to control the switch, part of the output is used to control the curtains, and part of the output is used to control the fan. The multi-function actuator is a modular installation device. In order to facilitate installation in the distribution box, it is designed according to EN 60 715 and can be installed on a 35 mm DIN rail. The device uses screw terminals for electrical connection, and the bus connection is directly connected via EIB. Terminal connection, system power supply does not require additional power supply voltage besides the bus.