S7 Automation - SIEMENS Simatic and Sinamics supplier of choice
SIEMENS supplier for PLC - HMI - Drives - TIA Portal Software
€ 420
Siemens Simatic S7-400 6ES7421-1BL00-0AA0 SM421 Digital Input Module, Optically Isolated, 32 DI, 24V DC
Refurbished
12 months