Air Velocity Sensors

SAIL SWITCH

S437 Sail Switches respond to the air velocity in heating or warm air ducts, such as used in farm crop dryers. The switch completes a 24V or line voltage burner control circuit only when the blower or fan has produced a preset air velocity.

Micro Switch SPST snap switch is operated by metal sail inserted in an air stream. Sail can trimmed to one-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.

Others

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

Others

  • Maximum Operating Ambient Temperature
    • 66 degree Celsius
    • 150 degree Fahrenheit
  • Includes
    • Case
    • Cover
  • Setpoint Device
    • Knob on the Snap Switch
  • Mounting Type
    • Horizontal
  • Brand
    • Honeywell BMS NA
  • Includes : Case|Cover
  • Setpoint Device : Knob on the Snap Switch
  • Mounting Type : Horizontal
  • Brand : Honeywell BMS NA
  • Maximum Operating Ambient Temperature : 66 degree Celsius|150 degree Fahrenheit
Data Sheet
Document Title
File Size
Date Added
0.29 MB
2/17/2022
Document Title
File Size
Date Added
0.29 MB
2/17/2022
Image
SKU
Description
alt
S437A1025/U
Switch, 1.5x4in Sail