What This Light Curtain Covers
Its 25mm detection capability means it catches a hand or finger reaching into a guarded area — that is the standard finger-protection threshold per IEC 61496. With a protective height of 2140mm and 107 beams on a 20mm pitch, it covers a tall opening like a large press or robotic cell entry. The operating range spans 0.2m to 7.0m, so the emitter and receiver can be placed several meters apart while still maintaining reliable detection.
Deployment Context
Rated IP65, the F3SJ-A2140P25-TS withstands dust ingress and water jets from any direction — suitable for washdown environments in food processing or automotive assembly lines where hosing down the machine is routine. The 24VDC supply is standard for safety circuits; most safety relays and controllers in the panel will share the same bus. Blanking and muting functions are built in, allowing the curtain to ignore fixed obstructions (like a fixture arm) or temporarily suspend guarding during a material feed cycle without external bypass modules.
The 25mm detection capability is the critical spec: it defines the smallest object the curtain reliably detects — a hand, not a finger (14mm would be finger). If your risk assessment calls for finger protection, this curtain is not the right pick. The 2140mm protective height and 107 beams mean it guards a full-height door or opening up to about 2.1m tall.