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Wenglor
Wenglor SR4B3B01S, Safety Relay Basic Module
Wenglor SR4B3B01S, Safety Relay Basic Module
Regular price
€337,96
Regular price
Sale price
€337,96
Unit price
/
per
Taxes included.
📦 Ready for dispatch: 02.12.2025
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SKU: SKU:SR4B3B01S
The safety relay monitors emergency stop switches, safety switches and AOPDs. In spite of its installation width spanning just 22,5 mm, it offers space for switching status displays and attaching an operating equipment label.
- Installation width just 22,5 mm
- Clear terminal assignment thanks to coding pins
- Circuit diagram directly on the housing
- Optional cross-circuit monitoring
| Electrical Data | |
|---|---|
| Supply Voltage | 20.4 ... 28.8 V DC |
| Supply Voltage | 20.4 ... 26.4 V AC |
| Input wiring | 1-, 2-channel |
| Response time (automatic start) | 100 ms |
| Response time (monitored start) | 15 ms |
| Fall time (emergency stop) | < 32 ms |
| Temperature Range | -25 ... 60 °C |
| Storage temperature | -40 ... 85 °C |
| Number of Safety Outputs stop 0 | 3 |
| Switching current safety output (250 V AC) | 8 A |
| Number of auxiliary outputs | 1 |
| Switching current auxiliary output (24 V DC) | 2 A |
| Mechanical Data | |
|---|---|
| Housing Material | Plastic |
| Degree of Protection | IP20 |
| Connection | Screw Clamp (pluggable) |
| Clampable Wire Cross-Section | 0.2 ... 2.5 mm² |
| DIN-Rail mounting | 35 mm |
| Weight | 318 g |
| Safety-relevant Data | |
|---|---|
| Performance Level (EN ISO 13849-1), Stop 0 | up to Cat. 4 PL e |
| Mission Time TM (EN ISO 13849-1) | 20 a |
| Safety integrity level (EN 61508) Stop 0 | up to SIL 3 |
| Stop Category (EN 60204-1) | 0 |
| B10d Switching Cycles (mechanical) | 20 000 000 |
| B10d Switching Cycles (40 % load) | 7 500 000 |
| B10d Switching Cycles (60 % load) | 2 500 000 |
| B10d Switching Cycles (80 % load) | 1 000 000 |
| B10d Switching Cycles (100 % load) | 400 000 |
| Function | |
|---|---|
| Cross-circuit detection | optional |
| Start, monitored | yes |
| Start, automatically | yes |
| Contactor Monitoring | yes |
| Input signal NC | yes |
| Input signal OSSD | yes |
| Standards and certificates |
|---|
| Connection Table |
|---|
| Ctrl. Panel |
|---|
| 68 = Power LED71 = Channel 187 = Channel 289 = Internal operating voltage47 = Cross wire monitoring |
| Dimensioned Picture |
|---|
| Dimensions specified in mm (1 mm = 0.03937") |
| Complementary Products |
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