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NG # 01105-HW-HNWEL-131
SKU # 01105-HW-HNWEL-131
S437 Sail Switches react to air velocity in heating or warm air ducts, commonly employed in applications like farm crop dryers. Activating a 24V or line voltage burner control circuit occurs exclusively when the blower or fan achieves a pre-established air velocity.
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Stock
Custom Pricing
Get A QuoteMicro 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.
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