R3JK-R5A3 is an AC/DC-powered retroreflective photo sensor offering 5M long-distance detection using a stable 940nm infrared LED. The R3JK-R5A3 is designed for machinery where reliable object presence detection is required, including conveyors, packaging systems, and automated sorting lines. Its universal AC90–260V or DC24–30V input and relay NO/NC output provide flexible integration with a wide range of controllers and loads. With a fast 1.5ms response and IP65-rated ABS housing, the R3JK-R5A3 ensures dependable operation even in harsh industrial environments.
Features
- Retroreflective sensing with 5M detection distance
- Infrared LED 940nm stable emission
- Relay NO/NC output for AC or DC loads
- Universal input: AC90–260V or DC24–30V
- IP65-rated ABS industrial housing
Technical Specifications
| Model | R3JK-R5A3 |
| Sensing type | Retroreflective |
| Sensing distance | 5M |
| Emitting light source | Infrared LED 940nm |
| Operating voltage | AC90–260V or DC24–30V |
| Current consumption | 25mA max |
| Load current | Relay: DC30V5A / AC250V5A |
| Output type | Relay NO/NC |
| 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 |
| Weight | Approx. 85g |


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