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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.

Overview
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.
Specifications

Others

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

Others

  • Maximum Operating Ambient Temperature
    • 150 degree Fahrenheit
    • 66 degree Celsius
  • Brand
    • Honeywell BMS NA
  • Setpoint Device
    • Knob on the Snap Switch
  • Includes
    • Case foot
    • Cover foot
  • Mounting Type
    • Horizontal inch
  • Maximum Operating Ambient Temperature : 150 degree Fahrenheit|66 degree Celsius
  • Brand : Honeywell BMS NA
  • Setpoint Device : Knob on the Snap Switch
  • Includes : Case foot|Cover foot
  • Mounting Type : Horizontal inch
Sort
Data Sheet
Document Title
Document Type
File Size
Data Sheet
0.29 MB
Document Title
Document Type
File Size
Data Sheet
0.29 MB
Product Number
Image
SKU
Description
alt
S437A1009/U
Sail Switches, 1 SPST, 25mm*76mm
alt
S437A1025/U
Switch, 1.5x4in Sail
Image
SKU
Description
alt
S437A1009/U
Sail Switches, 1 SPST, 25mm*76mm
alt
S437A1025/U
Switch, 1.5x4in Sail