Fargo Controls, Inc. 5 mm Diameter DC 3 Wire Inductive Proximity Sensor S3521

The S3521 is a 5 mm diameter, DC 3-wire inductive proximity sensor with a stainless steel case and IP67 protection against dust and immersion. It features an LED function indicator, short circuit protection, and reverse polarity protection. The sensor has a nominal operating distance of 0.8 mm, operates on a 10 to 30 Vdc power supply, and supports a maximum switching current of 150 mA. The voltage drop when active is less than 1.4 V, with an operating frequency of 2 kHz, repeatability of ±3% of Sn, and hysteresis under 10%. It is flush mountable, functions in temperatures from -25 to +70 °C, and includes a 2-meter pigtail cable with a C1 connector.