22154734 LM-4UAS2 Universal input 24V 4x, sw. cabinet, with four independently addressable inputs for integrating conventional light switches, motion detectors, time switches or other contact-makers in a bus-controlled lighting and room management system. Authorised service personnel can configure the system to suit. Depending on the addressing of an input, users can control all the actuators in a room, or one actuator group in the room. Input voltage 24V AC, 50/60 Hz, installed on 35 mm DIN rail to EN50022, width 4 HP (1 HP = 17.5 mm), made of halogen-free, flame-retardant polycarbonate, light grey. Bus and mains cable can be screwed to device inputs. Contact-maker must be designed for at least 230 V AC, with leads screw-connected to device inputs.