Controller,12 to 24V,Analog/Relay Output
51 in.43 in, Height 4.33 in, Width 5.Controller, Input Voltage 12 to 24V, Output Type Analog, Relay, 2 A Amps, 1 LAN expansion bus, 1 RS485 - screw terminal block Modbus serial link Slots, Timers Programmable, LED Display, Port Type 1 LAN Expansion Bus, 1 RS485, contacts usage Volt-free contacts, Discount Schedule PC12, Modbus, Modicon M171 Optimized Flush mounting 22 I/Os, product specific application HVAC and pumping solution, Depth 2.