R3JK-R5A3 is a retroreflective photo sensor designed for long-range object detection in industrial automation. It operates on universal AC90–260V or DC24–30V input and uses a durable ABS housing suitable for conveyor systems, packaging equipment, and material-handling machinery. The compact design and stable optical system allow reliable performance in harsh environments.
Features
- 5M retroreflective detection using an infrared LED 940nm
- Relay NO/NC output for direct AC or DC load control
- Universal AC90–260V or DC24–30V power input
- Fast 1.5ms response for high-speed applications
- IP65 protection for industrial and dusty environments
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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