This is an Omron F3SJ-B1985P25 safety light curtain from the F3SJ-B series, packaged in bulk. It's a through-beam photoelectric guard rated for hand protection with a 25mm detection capability — that's the smallest object it reliably catches, so it's sized for finger and hand access into a hazard zone, not just presence detection. The 20mm beam pitch and 98 beams give it a 1985mm protective height, which covers a full-body reach zone on a machine opening. Operating range runs from 0.2m to 7.0m — that's close-in guarding for a small press up to a wider conveyor entry. Supply is 24VDC, and it's rated IP65, so the housing and optics handle washdown from hoses and dust in a factory environment. Built-in blanking and muting functions mean you can configure it to ignore fixed obstructions (like a part fixture) or automatically bypass during a pallet pass-through — saves adding external bypass relays or a separate safety controller for simple stations.
Omron F3SJ-B1985P25 Light Curtain Hand 25mm, 1985mm Height
Omron F3SJ-B Series, Safety Light Curtain, Hand Protection 25mm, 1985mm Protective Height, 20mm Beam Pitch, 98 Beams, 24VDC, IP65.
Specifications
| Parameter | Value |
|---|---|
| Series | F3SJ-B |
| Parameter | Value |
|---|---|
| Detection capability (resolution) | 25mm |
| Protection | Hand |
| Protective height | 1985mm |
| Operating range (sensing distance) | 0.2m ~ 7.0m |
| Number of beams | 98 |
| Beam pitch | 20mm |
| Features | Blanking, Muting Function |
| Parameter | Value |
|---|---|
| Supply voltage | 24VDC |
| Parameter | Value |
|---|---|
| Operating temperature | -10°C ~ 55°C |
| Ingress protection (IP) | IP65 - Dust Tight, Water Resistant |
Product details
Frequently asked questions
What does the 25mm detection capability mean for guarding?
It means the light curtain reliably detects objects 25mm in diameter or larger — that's hand and finger protection per safety standards like IEC 61496. Smaller objects (like a wrist or tool tip) could pass through undetected, so don't use this for finger-only guarding; that requires a 14mm beam pitch.
Can this light curtain be used outdoors or in wet areas?
The IP65 rating means it's dust-tight and protected against water jets from any direction — fine for indoor washdown areas or covered outdoor installations. But it's not rated for submersion (IP67) or high-pressure steam cleaning (IP69K), so don't put it in a food-grade washdown tunnel without checking the hose distance and pressure.
What series does this part belong to?
It's part of the Omron F3SJ-B series, a line of safety light curtains designed for hand and body protection in industrial guarding applications.