R3JK-R5KP2 is a long-range retroreflective photo sensor from the RIKO R3JK series, offering stable object detection up to 5M using a high-performance 940nm infrared LED. The sensor features a selectable NPN/PNP transistor output with NO/NC switching, making it compatible with a wide range of PLCs and control systems. With 1.5ms response time, DC12–24V operation, and IP65 ABS housing, it is ideal for conveyors, packaging lines, and general industrial automation.
Features
- Retroreflective sensing with 5M detection distance
- Infrared LED 940nm stable light source
- NPN/PNP NO/NC selectable transistor output
- 1.5ms fast response for high-speed detection
- IP65-rated ABS housing, suitable for industrial environments
Technical Specifications
| Model | R3JK-R5KP2 |
| Sensing type | Retroreflective |
| Sensing distance | 5M |
| Emitting light source | Infrared LED 940nm |
| Operating voltage | DC12–24V |
| Current consumption | 30mA max |
| Load current | 100mA max at DC24V |
| Output type | NPN/PNP NO/NC selectable |
| Response time | 1.5ms max |
| Insulation resistance | 20MΩ min (DC500V) |
| Withstand voltage | AC1000V 60Hz for 60s |
| Operating temperature | −20 to 60 °C |
| Humidity | 35–85% RH |
| Protection rating | IP65 |
| Material | ABS |
| Wiring | Pre-wired Ø4.2mm × 2m (4-wire) |
| Weight | Approx. 80g |


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