Fargo Controls, Inc. Rectangular DC 4 Wire Inductive Proximity Sensor S3841

The S3841 is a 4-wire DC inductive proximity sensor with PNP, NO+NC output, adjustable sensing distance from 10 to 60 mm, and IP67 protection against dust and immersion. It operates on 10-55 Vdc, with a maximum switching current of 200 mA, voltage drop under 1.8 V when ON, and a power drain under 10 mA at 24 Vdc. The sensor includes short circuit and reverse polarity protection, an LED function indicator, and a 2 m PVC cable output. Operating frequency is 50 Hz, repeatability is ≤3% of Sn, and hysteresis is less than 10% at Sn = 50 mm. The case is plastic, non-flush mounting, and operating temperature ranges from -25 to 70 °C.