Siemens S7-1200 digital input module, 6AG1521-1BH00-7AB0, 16 inputs at 24 V DC, 35 mm width, active production.
Siemens 6AG1521-1BH00-7AB0 S7-1200 16DI 24 VDC
MPN6AG1521-1BH00-7AB0
Active
Siemens S7-1200 digital input module, 6AG1521-1BH00-7AB0, 16 inputs at 24 V DC, 35 mm width, active production.
$251.46Ref. price · indicative, final on quote
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MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Inputs
| Parameter | Value |
|---|---|
| Number of digital inputs | 16 |
| 2-wire sensor support | Yes |
Electrical
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V |
| Input voltage at signal "1" | +11 to +30V |
| Input voltage at signal "0" | -30 to +5 V |
| Permissible range, lower limit (DC) | 19.2 V |
| Permissible range, upper limit (DC) | 28.8 V |
| Input current at signal "1" (typ.) | 2.5 mA |
| Power loss (typ.) | 2.6 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, min. | 0.05 ms |
| Input delay 1 to 0, min. | 0.05 ms |
| Input delay 0 to 1, max. | 20 ms |
| Input delay 1 to 0, max. | 20 ms |
| Input delay, parameterizable values | Yes |
Environmental
| Parameter | Value |
|---|---|
| Max. ambient temperature, horizontal installation | 70 °C; = Tmax |
Diagnostics & Isolation
| Parameter | Value |
|---|---|
| Diagnostics function | Yes |
| Short-circuit (NAMUR sensor) | No |
| Diagnostic alarm | Yes |
| Hardware interrupt support | Yes |
| Isolation between channels | No |
| Isolation between channels and backplane bus | Yes |
| Isolation test voltage | 707 V DC (type test) |
| Channels per isolated group | 16 |
Mechanical
| Parameter | Value |
|---|---|
| Depth | 129 mm |
| Height | 147 mm |
| Width | 35 mm |
Product details
MPN
6AG1521-1BH00-7AB0