Viper Expansion Unit with Time Delay for SCR-i Safety Relays (SEU-31TD-i)
The SEU-31TD-i is an expansion unit with the added benefit of time delayed contacts. It has been designed to connect to a standard VIPER SCR-i safety relay for extra time delayed output contacts to the end user.
- Delayed contacts: 3NC 1NO (0-30 seconds)
- Up to PLd, SIL 2, Category 3
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| Part Number | Description | Inputs | Outputs | Auxiliary | Supply | Terminals |
|---|---|---|---|---|---|---|
| 280008 | SEU-31TD-i Screw Terminals 24V | 0 | 3 N/C Delayed (0-30s) | 1 N/O Delayed | 24Vac/dc | Screw |
| 280008-P | SEU-31TD-i Pluggable Terminals 24V | 0 | 3 N/C Delayed (0-30s) | 1 N/O Delayed | 24Vac/dc | Pluggable |
| Note |
|---|
| Must be used in conjunction with SCR-i Safety Relay. |
| Power Supply Circuit | |
|---|---|
| Rated operating voltage | 24V AC/DC |
| Operating voltage tolerance | -15% - +10% |
| Rated supply frequency | 50Hz – 60Hz |
| Rated supply current | 100mA |
| Power consumption | 24V 2.5W |
| Control Circuits | |
|---|---|
| Rated output voltage | S11 24V DC |
| Input current | S15, S16 100mA |
| Response time | 100ms |
| Release time | 25ms |
| Recovery time | Approx. 1s |
| Time delay range | 0 - 30s |
| Output Circuits | |
|---|---|
| Rated output voltage | 250VAC |
| Max. current per output | 6A |
| Max. total current all outputs | 6A |
| Safety contact breaking capacity | AC 230V, 4A for AC-15 / DC 24V, 30W, 2A, DC-13 |
| Minimum contact load | 10V 10mA |
| Min. contact fuses | 4A Slow blow, 6A Fast blow |
| Contact material | AgSnO2 |
| Contact service life | 10 x 10 6 |
| General Data | |
|---|---|
| Rated impulse withstand voltage | 4kV |
| Rated insulation voltage | 250V |
| Degree of protection | IP20 |
| Temperature range | -20C + 55C |
| Degree of contamination | 2 |
| Overvoltage category | III |
| Weight | 0.15kg |
| Mounting | Any position |
| Time delay range | 0 – 30 Seconds |
