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Environmental & Combustion Controls
S688A1007
Sail Switch with 5 in. wide sail

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Overview
The Sail Switch activates an electronic air cleaner, a humidifier, or other equipment in response to airflow from the system fan. The S688A is mounted in the return air duct where the sail will be in the direct path of an unrestricted air stream.

Product Prices
Package Type Product Base Price($) Order Quantity
U
1 + $103.53
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Features

• Simplified installations with multi-speed fans, in- accessible air handlers, fan motors with voltage or phase different from controlled equipment; eliminated wiring to system fan.
• Polyester film sail mounted on a micro switch snap switch.
• Removable spring counterbalances sail to allow mounting in either vertical (up or down) or horizontal air flow.
• Top and bottom conduit knockouts for wiring convenience.
• Low air velocity switch operation makes at 250 fpm and breaks at 75 fpm.
Product Specifications  Back To Top
Description Air Flow Switch
Operating Velocity (fpm) 75 fpm-250 fpm
Operating Velocity (m/s) 0.4 m/s-22.9 m/s
Insertion Length (in.) 10 in.
Insertion Length (mm) 254 mm
Switching SPDT
Contact Ratings (AFL) N.O.Contacts: 2.0 A @ 24 Vac, 120 Vac
Contact Ratings (AFL) N.O.Contacts: 1.0 A @ 240 Vac
Contact Ratings (AFL) N.C.Contacts: 1.0 A @ 24 Vac, 120 Vac
Contact Ratings (AFL) N.C.Contacts: 0.5 A @ 240 Vac
Contact Ratings (ALR) N.O.Contacts: 12.0 A @ 24 Vac, 120 Vac
Contact Ratings (ALR) N.O.Contacts: 6.0 A @ 240 Vac
Contact Ratings (ALR) N.C.Contacts: 6.0 A @ 24 Vac, 120 Vac
Contact Ratings (ALR) N.C.Contacts: 3.0 A @ 240 Vac
Contact Ratings (resistive) N.O.Contacts: 5.0 A @ 24 Vac, 120 Vac
Contact Ratings (resistive) N.O.Contacts: 2.5 A @ 240 Vac
Contact Ratings (resistive) N.C.Contacts: 2.5 A @ 24 Vac, 120 Vac, 240 Vac
Maximum Ambient Temperature (F) At switches: 125 F
Maximum Ambient Temperature (F) At sail: 170 F
Maximum Ambient Temperature (C) At switches: 52C
Maximum Ambient Temperature (C) At sail: 77 C
Dimensions (in.) 2 15/16 in. high x 3 3/4 in. wide x 2 in. deep
Dimensions (mm) 59 mm high x 95 mm wide x 51 mm deep
Sail Dimensions (in.) 5 in. wide (max), 26.2 sq. in. of area
Sail Dimensions (mm) 127 mm wide (max), 16,903 mm2
Approvals, Underwriters Laboratories Inc UL Listed: File No. E4436, Guide No. XAPX. For use in ambient temperatures normally prevailing in occupiable spaces, which usually are not higher than 77 F (25 C) but occasionally may be as high as 104 F (40 C) for brief periods.
Approvals, Canadian Standards Association Certified

Literature and other Resources Download Back To Top
Product Data - (S688A Sail Switch)
AUXILIARY EQUIPMENT Wiring(LineArt)
AUXILIARY EQUIPMENT Wiring(LineArt - Web Quality Image)
AUXILIARY EQUIPMENT Wiring(LineArt)
AUXILIARY EQUIPMENT Wiring(LineArt - Web Quality Image)
S688 Sail Switch Ad Slick(LineArt)
S688 Sail Switch Ad Slick(LineArt - Web Quality Image)
Air Cleaner Ad Slick(LineArt)
Air Cleaner Ad Slick(LineArt - Web Quality Image)
Typical hookup using S688 Sail Switch and F50A or F50E Electronic Air Cleaner Wiring(LineArt)
Typical hookup using S688 Sail Switch and F50A or F50E Electronic Air Cleaner Wiring(LineArt - Web Quality Image)
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