I/O extension module for modular PLC control relay Zelio Logic SR3. A total of 6 I/Os, of which 4 are digital inputs and 2 are digital outputs. The power supply is via the PLC control relay. The digital outputs are transistors. Terminal block protection class IP20, front panel protection class IP54. Mounting on 35mm DIN rail. Certified according to CE, cULus Listed, CSA, GL, GOST, C-Tick.