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S7-400 Digital modules SM 421 32DI
S7-300 Digital modules SM 321 32DI
MCCB Siemens 3VA5 - TM210, FTFM 3-pole In=30A, class H 65 kA
S7-400 Digital modules SM 421 32DI
https://vtnm.vn/shop/6es7421-1bl01-0aa0-s7-400-digital-modules-sm-421-32di-2998
https://vtnm.vn/web/image/product.template/2998/image_1920?unique=3a21992
SIMATIC S7-400, digital input SM 421, isolated 32 DI; 24 V DC