Overview
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.
Features
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.
- Application : Sail Switch
- Dimensions (mm) : 59 mm high x 95 mm wide x 51 mm deep, Sail Dimensions --25 mm x 76 mm
- Item Type : Product
- Approvals, Underwriters Laboratories Inc. : UL: File: MP2618
- Approvals, Canadian Standards Association : CSA: Guide: MFHZ
- Insertion Length (in.) : 3 1/2 in.
- Insertion Length (mm) : 89 mm
- Ambient Temperature Range (F) : 150 F Maximum
- Ambient Temperature Range (C) : 66 C Maximum
- Switching : 1 SPST
- Contact Ratings (AFL) : 8.0 A @ 120 Vac, 5.1 A @ 240 Vac, 2.0 A @ 24 Vac, 15.0 A @ 6 Vdc, 7.5 A @ 12 Vdc
- Contact Ratings (ALR) : 48.0 A @ 120 Vac, 30.6 A @ 240 Vac
- Operating Velocity (fpm) : 1900 fpm-2250 fpm
- Operating Velocity (m/s) : 9.7 m/s-11.4 m/s
