Fargo Controls, Inc. Limit Switch Style DC 2/4 & AC 2 Wire S3310

The Limit Switch Style DC 2/4 & AC 2 Wire, part number S3310, from Fargo Controls, Inc. features a programmable output that can be configured as either normally open (NO) or normally closed (NC) for 2 wire models. It operates within a power supply range of 10-55 Vdc for DC applications and 20-250 Vac for AC applications. The maximum switching current is 100 mA for DC and 300 mA for AC, with a minimum switching current of less than 1.5 mA for DC and 5 mA for AC.

This model includes short circuit and reverse polarity protection in DC versions and has an IP67 protection rating, ensuring it is dust-tight and resistant to immersion in water. The operating temperature range is from -25 to 70 °C, making it suitable for various environments. The sensing head can be oriented in five different directions, and it features an LED function indicator for easy status monitoring.

Engineers considering this product should note its adjustable operating distance of up to 60 mm and its suitability for applications requiring reliable limit switching in challenging conditions.