Pepperl + Fuchs Retroreflective Photoelectric Sensor, Block Sensor, 9 m Detection Range
- RS Stock No.:
- 817-1608
- Mfr. Part No.:
- RLK31-54/25/31/115
- Brand:
- Pepperl + Fuchs
Subtotal (1 unit)*
£79.95
(exc. VAT)
£95.94
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 13 unit(s) ready to ship from another location
- Plus 9 unit(s) shipping from 17 November 2025
- Plus 9 unit(s) shipping from 24 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £79.95 |
*price indicative
- RS Stock No.:
- 817-1608
- Mfr. Part No.:
- RLK31-54/25/31/115
- Brand:
- Pepperl + Fuchs
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Pepperl + Fuchs | |
| Sensor Style | Block | |
| Detection Type | Retroreflective | |
| Detection Range | 9 m | |
| Output Type | PUSH/PULL | |
| Electrical Connection | 5 Wire Cable 2 m | |
| Maximum AC Voltage | 240V | |
| Maximum DC Voltage | 240V | |
| Light Source | LED | |
| IP Rating | IP67 | |
| Maximum Current | 3 A | |
| Response Time | =25 ms | |
| Housing Material | PC | |
| Minimum Operating Temperature | -25°C | |
| Maximum Operating Temperature | +55°C | |
Select all | ||
|---|---|---|
Brand Pepperl + Fuchs | ||
Sensor Style Block | ||
Detection Type Retroreflective | ||
Detection Range 9 m | ||
Output Type PUSH/PULL | ||
Electrical Connection 5 Wire Cable 2 m | ||
Maximum AC Voltage 240V | ||
Maximum DC Voltage 240V | ||
Light Source LED | ||
IP Rating IP67 | ||
Maximum Current 3 A | ||
Response Time =25 ms | ||
Housing Material PC | ||
Minimum Operating Temperature -25°C | ||
Maximum Operating Temperature +55°C | ||
RLK31 Retro Reflective Block Style AC/DC Photoelectric Sensors
The RLK31 range of retro-reflective photoelectric sensors from Pepperl + Fuchs offers a compact sensor suitable for factory automation applications within industrial environments. Retro- reflective sensors work through emitting a beam of light which is then mirrored from a partnered reflector, the reflected light is then detected by the receiver unit. The sensors are triggered when the light beam between the sensor and reflector is broken by an object. Retro reflective sensors are used in part presence detection applications.
Compact and stable housing
Operating voltage AC / DC
Relay output
Operating voltage AC / DC
Relay output
Related links
- Pepperl + Fuchs Retroreflective Photoelectric Sensor 9 m Detection Range
- Pepperl + Fuchs Through Beam Photoelectric Sensor 30 m Detection Range
- Pepperl + Fuchs Diffuse Photoelectric Sensor 1.2 m Detection Range
- Pepperl + Fuchs Diffuse Photoelectric Sensor 0 → 2.5 m Detection Range
- Pepperl + Fuchs Retroreflective Photoelectric Sensor 6.5 m Detection Range
- Pepperl + Fuchs Retroreflective Photoelectric Sensor 4 m Detection Range
- Pepperl + Fuchs Retroreflective Photoelectric Sensor 5 m Detection Range
- Pepperl + Fuchs Retroreflective Photoelectric Sensor 3 m Detection Range

