Honeywell S437A1025 Sail Switch 1-1/2" x 4"

The 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 predetermined air velocity.

Features:

• Micro Switch SPST snap switch is operated by metal sail inserted in an air stream
• A conduit knockout is located on each end of the case for wiring convenience
• 1 SPST Switching
• 150 F maximum ambient temperature range
• 3-1/2" insertion length
• 2-15/16" high x 3-3/4" wide x 2" deep

Technical Literature: