Viper Expansion Unit for SCR-i Safety Relays (SEU-31-i)
The SEU-31-i is an expansion unit for the VIPER SCR-i range and has been designed to connect to a standard SCR-i safety relay to offer extra safety output contacts (3NC + 1NO).
- Outputs 3NC and 1NO contacts
- Up to PLe, SIL 3, Category 4
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- Technical Specifications
- Technical Drawings
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| Part Number | Description | Inputs | Outputs | Auxiliary | Supply | Terminals |
|---|---|---|---|---|---|---|
| 280007 | SEU-31-i Screw Terminals 24V | 0 | 3 N/C | 1 N/O | 24Vdc | Screw |
| 280007-P | SEU-31-i Pluggable Terminals 24V | 0 | 3 N/C | 1 N/O | 24Vdc | Pluggable |
| Note |
|---|
| Must be used in conjunction with SCR-i Safety Relay. |
| Power supply Circuit | |
|---|---|
| Operating voltage | 24V AC/DC |
| Operating voltage tolerance | -15% - +10% |
| Rated supply frequency | 50Hz – 60Hz |
| Rated supply current | 60mA |
| Power consumption | 24V AC/DC 2.5W |
| Control Circuits | |
|---|---|
| Rated output voltage | S11 24V DC |
| Input current | S15, S16 100mA |
| Response Time | 25ms |
| Release Time | 25ms |
| Recovery Time | Approx. 1s |
| 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 (Creepage and Clearance: Outputs -> Control Circuits: 5.5mm) |
| 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 |
