AFSX Speed Responsive Switch

0.1–1000 RPM.


  • NEC:
    – Class I, Division 1 and 2, Groups C, D
    – Class II, Division 1 and 2, Groups E, F, G
    Class III
    NEMA 7CD, 9EFG

The AFSX speed responsive switch can be used to automatically detect and correct overspeed, underspeed, and zero speed conditions in conveyors and other bulk material handling systems. It is rated for use in Class I and Class II hazardous environments.

AFSX Speed Responsive Switch Catalog Pages

Applications Features Catalog Numbers
  • For use in bulk material handling/processing systems to monitor speeds of belt conveyors, screw conveyors, bucket elevators and rotating machinery
  • For installation in steel mills, mining and coal handling operations, grain handling, chemical and plastic industries
  • Built to withstand rugged, damp and hosedown environments
  • Suitable for Class I and II areas where flammable vapors or highly combustible dusts are present
  • Designed to monitor material flow by sequencing the operation of multiple conveyors feeding a common bin or conveyor
  • Can be used as an overspeed, underspeed or zero speed switch


AFSX Series Speed Responsive Switch