Autonics BEN3M-PFR is a universal AC/DC retroreflective (polarized) photoelectric sensor rated to 0.1-3 m. It uses a red LED, 660 nm, and a free-power relay contact output with Light/Dark ON selection. Operation and stability indicators support quick alignment in material handling systems.
Features
- Free-power relay output, 1c contacts
- 0.1-3 m range on standard target
- Red LED, 660 nm emitter with photo IC receiver
- 20 ms response for general automation
- IP50 enclosure
- Bracket and adjustment screwdriver included
Technical specifications
| Model | BEN3M-PFR |
| Series | BEN |
| Sensing type | Retroreflective (polarized) |
| Sensing distance | 0.1-3 m |
| Light source/wavelength | Red LED, 660 nm |
| Response time | 20 ms max |
| Operation mode | Light ON / Dark ON selectable |
| Supply | 24-240 VAC +/-10% (50/60 Hz), 24-240 VDC +/-10% (ripple P-P <= 10%) |
| Control output | Relay contact, 1c |
| Indicators | Operation (red), Stability (green) |
| Protection rating | IP50 |
For more information, visit the OEM page for BEN3M-PFR.




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