DFS Series
Air Pressure Sensing Switches

DFS-243
  • Open-mounted, nonadjustable switch for duct heater, oven, and other HVAC or Energy Management applications
  • Surface-mounts in areas where internal access is limited
  • The plated housing contains a diaphragm and a snap-acting SPDT switch
  • Integral compression ferrule and nut connectors located on each side of the diaphragm accept ¼” OD metallic tubing
  • Male 1⁄4″ quick connect terminals
  • Senses positive, negative, or differential air pressure
  • SPDT snap action switch operates on pressure rise of 0.05″wc, + 0.02″ wc.

DOWNLOAD
DFS-301-112

Precision. Every Day.