Product code : 6ES7421-1FH20-0AA0 (SIMATIC S7-400, DIG.INPUT MOD)
Brand : siemens
SIMATIC S7-400, digital input SM 421, isolated 16 DI; UC 120/230V Inputs according to IEC1131-2 Type 2
look to all details: https://mall.industry.siemens.com
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