Siemens 6ES7121-1FA00-0AA0 Digital Input Submodule
MPN6ES7121-1FA00-0AA0
*** SPARE PART*** SIMATIC SC,ELECTRONIC SUBMODULE 1 DI, AC 115/230 V
$205.74Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Inputs
| Parameter | Value |
|---|---|
| Number of digital inputs | 1 |
| 2-wire sensor support | Yes |
Electrical
| Parameter | Value |
|---|---|
| Input voltage at signal "1" | 74 to 264 V AC/75 to 264 V DC |
| Input voltage at signal "0" | 0 to 40 V AC/ 0 to 40 V DC |
| Input current at signal "1" (typ.) | 3.7 mA |
| Input current at signal "0", max. (permissible quiescent current) | 2.2 mA |
| Power loss (typ.) | 0.6 W |
| Permissible quiescent current, 2-wire sensor, max. | 1.5 mA |
| Cable length, unshielded, max. | 600 m |
| Cable length, shielded, max. | 1 000 m |
Timing
| Parameter | Value |
|---|---|
| Input delay 0 to 1, max. | 30 ms |
| Input delay 1 to 0, max. | 30 ms |
Diagnostics & Isolation
| Parameter | Value |
|---|---|
| Diagnostics function | No |
| Isolation between channels and backplane bus | Yes |
| Isolation test voltage | 2 500 V DC |
| Status indicator per channel (green) | Yes |
Mechanical
| Parameter | Value |
|---|---|
| Depth | 51 mm |
| Height | 64 mm |
| Width | 10 mm |
Specifications
| Parameter | Value |
|---|---|
| Rated value (AC) | 230 V; 120/230 V AC |
MPN
6ES7121-1FA00-0AA0