Appleton® AFSX speed responsive switch is designed to monitor material flow by sequencing the operation of multiple conveyors feeding a common bin or conveyor. It is for use in bulk material handling/processing systems to monitor speeds of belt conveyors, screw conveyors, bucket elevators and rotating machinery. The AFSX is used where alarm or computer interface capabilities are needed. It is ideal for installation in mining and industrial areas where rugged control enclosures are needed for protection from falling ores, other heavy aggregates and from dripping water or hosedowns. It is rated for use in Class I and II areas where flammable vapors or highly combustible dusts are present.

Appleton® Speed Responsive Switch, Series: AFSX, 0.1 to 1000 rpm Speed, Pulse Sensor, 240 V AC/24 V DC, 5 A, 3 W Power, DPDT Contact Configuration, 3/4 in NPT Connection, NEMA 7C/7D/9E/9F/9G Enclosure, Cast Aluminum, Environmental Conditions: -50 to 150 deg F

• Adjustable time delay (up to 45 s)
• Input power is applied to the speed responsive switch at all times
• The switch then senses input shaft speed in either direction
• When input shaft speed exceeds the pickup set point, the output relay is energized
• If shaft speed falls below 80 to 85% of the pickup speed the relay will de-energize
• Clockwise or counterclockwise rotation
• Senses speed changes as slight as 1%
• Constructional feature shock resistant

• Specification Sheet https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_71856a7d0e7e663e711b13e00e70f05c62140a3fbff6d8f6a842dda3db15a39a.pdf