The Omron F3SJ-A1770N55 Safety Light Curtain is configured for 55 mm leg and body detection over a 1770 mm protective height in industrial machine safeguarding systems. Its sensing field uses 36 infrared beams separated by a 50 mm beam gap to monitor personnel access through the guarded machine opening. A 24 VDC supply powers the unit, while an M12 8-pin connector provides electrical integration with the surrounding safety architecture. The larger 55 mm detection capability is intended for leg and body intrusion, while the 1770 mm protective height provides coverage across tall machine access zones. The F3SJ-A1770N55 belongs to the F3SJ Series and is positioned within the 55 mm body protection light curtain range associated with Omron industrial safety products.
The Omron F3SJ-A1770N55 is a F3SJ Safety Light Curtain designed for use in machine guarding, access protection, and point-of-operation safety around conveyors, presses, and automated lines. It is usually evaluated together with related models such as Omron F3SJ-A1920P55 (Leg/body protection, 50 mm beam gap, 39 beams, 1920 mm protective height, M12 Connector 8-pin) when engineers are matching safety light curtains to application risk levels and space constraints. Reviewing application type, beam gap, number of beams, protective height, and connection method makes it easier to select the right curtain for finger protection, hand detection, or body protection zones along the machine. The F3SJ-A1770N55 integrates cleanly with safety relays, controllers, and emergency circuits where a reliable Omron Safety Light.
