Siemens 3RK2100-1CT30-0AA3 AS-I K20 Compact Standard Slave Digital I/O Module, 4 Outputs
Siemens Digital I/O Module, Compact Standard Slave, Series: AS-I K20, 4 Output, M8 Screw Terminal, -25 to 70 deg C, 20 mm W x 45 mm D x 108 mm H