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Air Velocity Sensors

S637 Sail Switch

S637 sail switches respond to the air velocity in heating ducts such as farm crop dryers. They complete a 24V, or line voltage, burner control circuit when a blower or fan has produced a predetermined air velocity.

S637 sail switches respond to the air velocity in heating ducts, such as farm crop dryers. They complete a 24V, or line voltage, burner control circuit when a blower or fan has produced a predetermined air velocity.

Features & Benefits:
  • MICRO SWITCH™ SPDT snap switch is operated by metal sail inserted in an air stream
  • Has a set of normally closed (NC) contacts that can be used to energize a signal or warning circuit when the velocity drops 
  • Sail can trimmed to half the original size to double the velocity required to close the snap switch contacts
  • Switch differential can be manually adjusted by turning a knurled knob on the snap switch
  • A conduit knockout is located on each end of the case for wiring convenience
Certifications:
  • UL Listed
  • CSA Approved

Others

  • Includes
    • Case
    • Cover
  • Setpoint Device
    • Knob on the Snap Switch
  • Mounting Type
    • Horizontal
  • Maximum Operating Ambient Temperature
    • 150 degree Fahrenheit
    • 66 degree Celsius

Others

  • Includes
    • Case
    • Cover
  • Setpoint Device
    • Knob on the Snap Switch
  • Mounting Type
    • Horizontal
  • Maximum Operating Ambient Temperature
    • 150 degree Fahrenheit
    • 66 degree Celsius
  • Includes : Case|Cover
  • Setpoint Device : Knob on the Snap Switch
  • Mounting Type : Horizontal
  • Maximum Operating Ambient Temperature : 150 degree Fahrenheit|66 degree Celsius