ABB PLC I/O Module for Use with KNX Bus System

The ABB SA-M switch actuator is a rail mounting device with a module width of 4 modules for the installation in distributors. The switch actuator can be used for switching electric circuits. The integrated bus coupler makes possible the connection to the free@home bus. The connection to the free@home is made at the front via a bus connection terminal.

Four switching channels in one device
Manual switching option on the device for each of the four channels
Variable wiring via 6 mm terminals with combi-head screw
Usual manner of wiring of the 230 V line