KNX contact interface with 8 independent channels. It can be used for monitoring different devices, like probes, alarms, etc... Main functions: Recording of the switching of status (open/ closed), and of the status changes (opening/ closing), of the different contacts - Monitoring of the switching status, and of the operating status of the contacts (status of connected devices, alarms...) - Recording of the switching status of the contacts and count of the number of switches, and comparison with preset reference thresholds KNX bus connection using a red-black KNX connector. Supply voltage 100/240 V ac 50/60 Hz. Fitting on DIN rail. Size: 6 DIN modules.