In sourcing discussions, RL81-54-25-31-115 is often placed next to Sick Diffuse Sensor, Ml100 Sensor and P&F Sensors so procurement teams can align budgets and technical requirements effectively.
Pepperl Fuchs RL81-54/25/31/115 Photoelectric Sensor
The Pepperl Fuchs RL81-54/25/31/115 Photoelectric Sensor offers a REF-H88x25 0 ... 6 mREF-H88x50 0 ... 12 m detection range, LED light source, and 2-meter PVC cable connection. Manufactured by Pepperl Fuchs under the P&F Photoelectric Sensor category, this model belongs to the reflective sensor.

| Brand | Pepperl Fuchs |
| Product Type | Photoelectric Sensor |
| Model Number | RL81-54/25/31/115 |
Pepperl Fuchs RL81-54/25/31/115 Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Effective detection range | REF-H88x25 0 ... 6 mREF-H88x50 0 ... 12 m |
| Reflector distance | REF-H88x25 2.6 ... 10 mREF-H88x50 2.5 ... 15.5 m |
| Threshold detection range | REF-H88x25 10 mREF-H88x50 15.5 m |
| Reference target | REF-H88x25 |
| Light source | LED |
| Light type | modulated visible red light , 640 nm |
| Polarization filter | - |
| Diameter of the light spot | approx. 200 mm at a distance of 6 m |
| Opening angle | 3 Β° |
| Optical face | - |
| Control elements | - |
| Operating voltage | 12 ... 24 V AC/DC |
| Ripple | 10 % |
| No-load supply current | β€ 50 mA |
| Switching type | light-on |
| Signal output | Relay, 1 alternator Relay energized: Light beam is not interrupted |
| Switching voltage | max. 50 V AC ; 60 V DC |
| Switching current | max. 1 A |
| Voltage drop | - |
| Switching frequency | - |
| Response time | Light beam unobstructed to light beam interrupted: 10 msLight beam interrupted to light beam unobstructed: 80 ms |
| Ambient temperature | -30 ... 60 Β°C (-22 ... 140 Β°F) |
| Storage temperature | -40 ... 70 Β°C (-40 ... 158 Β°F) |
| Degree of protection | IP65 |
| Connection | 2-meter PVC cable |
| Mass | approx. 155 g |
| Cable length | - |




