The binary input module collects binary signals from sensors used in zone 0+1 of the potentially explosive area. These can be NAMUR sensors, optocouplers, mechanical contacts and other devices that meet the necessary intrinsic safety requirements. The WAGO-I/O-SYSTEM 750 modules should be installed in zone 2 or in a non-hazardous area. A short-circuit-proof voltage output of 8.2 V is used to power the sensors.