Zelio Modular Relay 10 inputs outputs with possibility of extensions - 24 VDC power supply The SR3PACKBD intelligent relay from Schneider Electric is a simple to implement programmable logic controller. It is easily programmed using the Zelio Soft 2 software and its intuitive interface. This pack includes the connection kit with the SR2USB01 cable and the Zelio PLC programming software. It also contains the Schneider PLC reference SR3B101BD. Easy to install, this Zelio Logic Relay mounts on a standard symmetrical DIN rail. All PLC inputs and outputs are equipped with a screw terminal block. The Zelio SR3PACKBD reference is a Modular model, which means that it can receive additional discrete, analog input/output expansion modules or communication modules. This Zelio automaton is equipped with a clock and a digital display screen. Supply voltage: 24 VDC Total inputs and outputs: 10 Digital inputs: 6 including analog inputs 0-10V: 4 Relay outputs: 4 Transistor outputs: 0 Backlit display screen: Yes Clock: Yes