Catalog > Electro-Mechanical Components > Industrial Automation S7-300, Digital Input 16 DI, 24-48 V AC/DC With Single Rooting, 1x 40-Pole Digital Input 6ES7321-1CH00-0AA0 SIMATIC S7-300, Digital Input SM 321, Isolated, 16 DI, 24-48 V AC/DC With Single Rooting, 1x 40-Pole 14,698.02 ZAR inc for 1 Each 1 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Downloads Datasheet PDF File 239.17 KB