Description
SM 1221 AC input module for S7-1200. 8 AC inputs 120/230VAC. For direct connection of field switches and sensors on AC supply.

8-channel AC digital input 120/230VAC
SM 1221 AC input module for S7-1200. 8 AC inputs 120/230VAC. For direct connection of field switches and sensors on AC supply.
| Brand | Siemens |
|---|---|
| Automation Category | Basic PLCs |
| Series | S7-1200 |
| Product Type | Signal Module – DI |
| Part Number | 6ES7221-3AD30-0XB0 |