Integrator's Field Note
The Omron F3SG4PGA09703A is a Type 4 safety light curtain from the F3SG-PG series, built for perimeter and access guarding. Three beams at 400 mm spacing cover a 970 mm protected height, using 870 nm IR LEDs for the sensing field. Range extends to 20 m, which suits aisle and machine-cell perimeters where longer reach is needed. Rated IP65 and IP67, so it handles washdown and dust exposure without an extra enclosure. M12 quick-connects on both transmitter (5-pin) and receiver (8-pin) simplify cable runs. The receiver carries dual NPN/PNP auxiliary outputs rated 100 mA, plus a safety output rated 300 mA at 24V DC. Response time is 8 ms maximum — fast enough for most hand and body detection applications. Operating temperature spans -22 to 131 °F, covering unheated warehouse and conditioned production floor alike.
Compliance marks include CE, CSA, and UL Listing, so the part carries the documentation needed for North American and European machine-safety audits. No RoHS or REACH statement is on record here, but the UL/CSA marks imply the standard industrial exemptions apply.
Mounting & Wiring Checklist
End caps are included in the box — no separate order needed for the mechanical stops. Overall height is 38.19 in (970 mm protected), width 1.84 in, depth 1.5 in. Mounting brackets are not listed as included; verify bracket kit separately. Receiver uses an 8-pin M12 connector; transmitter uses a 5-pin M12. Pinout follows Omron's standard F3SG-PG wiring — confirm the receiver's auxiliary and safety output assignments against the manual before terminating. The 300 mA safety output drives a safety relay or PLC input directly; the 100 mA auxiliary outputs are for status indication or non-safety interlocks.