2-channel analog input 4-20 mA single-ended intrinsically safe. The analog input module supplies the intrinsically safe transducers located in the explosion-hazardous areas of Zone 0+1 and processes their analog measurement signals. The installation of the WAGO I/O System 750/753 must take place either in Zone 2 or in a non-explosion-hazardous area. The supply voltage of 24 V is fed through the power contacts. The transmitter supply is designed to be conditionally short-circuit proof. The shield connection is directly routed to the mounting rail. Indicators: Green LED (signal current on/off). Red LED (cable break, exceeding/under-reaching of the measurement range). Field and system levels are galvanically isolated.