Product Description
Simatic S7-300 Series. Digital Input SM321. Optically Isolated 16 DI. 24 V DC, Source Input, 1 X 20 Pin. Commodity Code 85389091. Siemens 6ES7321-1BH50-0AA0 Simatic S7-300 Digital Input Module SM 321, Optically Isolated, 16DI, 24VDC, Source Input. Siemens. Siemens. 6ES7321-1BH50-0AA0.