The Omron F3SG-4SRB0160-25 is a Type 4 safety light curtain from the F3SG-SR series, rated for hand protection with a 25 mm detection capability and a 20 mm beam pitch. Its 160 mm protective height covers a single hand zone, and the 0.3 m to 20 m operating range suits both reach-in and perimeter access applications. The 24 VDC supply is standard for safety-rated controllers, and the IP65/IP67/IP67G rating handles washdown and oil-mist environments.
The 25 mm detection capability and 20 mm beam pitch define the minimum object size the curtain reliably catches — this is a hand-only unit, not finger or body. The 160 mm protective height sets the vertical coverage; if your opening is taller, you stack multiple units or step up to a longer model. The 0.3 m minimum range means the curtain can be mounted close to the hazard, useful on compact machines. IP67G adds oil resistance beyond standard IP67, relevant for machining centers with coolant mist.