Siemens 3RK2200-0CE02-0AA2 AS-I Digital I/O Module, 4 Inputs
Siemens AS-I Digital I/O Module, 4 Inputs, 20 to 30 VDC, 270 mA, Screw Terminal, -25 to 70 deg C, 102 mm H x 22.5 mm W x 86 mm D Dimensions