Controller Input Voltage 12 to 24V AC/DC Output Type Analog Relay 2 A Amps Timers Programmable Yes Clock No Display Display Port Type LAN Expansion Bus contacts usage Volt-free contacts Discount Schedule PC12 Modicon M171 Optimized Flush mounting 22 I/Os mounting support DIN rail product specific application HVAC and pumping solution relative humidity 10 90 Percent non-condensing Depth 2.43 in Height 4.33 in Width 5.51 in