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SPDT Air Pressure Switch Fixed at 0.05" W.C. (No Negative Inlet)

Cleveland AFS and FS Air Pressure Switch
$59.66
SKU: DFS-221-228
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More about this product

The DFS-221-228 is an airflow proving switch designed for duct heater, oven, and other HVAC or Energy Management applications where a nonadjustable switch is desirable. It can be used to sense positive air pressure.

Details:

  • Snap-acting SPDT switch
  • One male, externally threaded 7/16" 24 UNS 2A thread sample line connection, complete with nut and self-aligning ferrule
  • Fixed to operate on pressure rise @ 0.05 ± 0.02" W.C.
  • Enclosure covered switch terminals
  • Conduit Opening: one ⅞" diameter opening, accept ½" conduit
  • Standard foot bracket mount
  • Maximum Pressure: ½ psi (0.03 bar).
  • Operating Temperature Range: -40 ºF to 180 ºF (-40 ºC to 82 ºC).
  • 100,000 cycle minimum lifespan at ½ psi maximum pressure each cycle and at maximum rated electrical load.