6ES7221-1BH32-0XB0 is a Siemens Digital Input Module commonly used for sm1221, 8 digital inputs, 24vdc.
Digital Input Module
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6ES7221-1BH32-0XB0
| Feature |
|---|
| Siemens Digital Input Module |
| SM1221, 8 digital inputs, 24VDC |
| Category: Programmable Logic Controllers (PLC) |
| Package / mounting: DIN Rail |
| Suitable for B2B component sourcing and project BOM support |
| Original manufacturer data should be checked before final engineering use |




