OverviewThe 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.FeaturesSimplified installations with multi-speed fans, inaccessible 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...

The Robertshaw offering of air pressure switches is Simply the Right Choice™ for flexibility, reliability, accuracy and ease-of-use. With a wide array of applications, the 2374-510 kit replaces hundreds of other manufacturers’ air pressure switch models. HVAC contractors now have a one-stop option to meet all their air pressure switch needs. This latest addition to the Robertshaw product line includes: • High impact polycarbonate housing • Works in a variety of harsh conditions • Snap-acting...

Design eliminates ”fluttering” or malfunction due to shock or vibration normally encountered with ”sail switches”Furnished with one 12” piece 1/4” O.D. flexible tubing, nuts and ferrulesWide operating rangeCan be mounted in any position except upside downEnclosed diaphragm