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F50A-E 20x25 Parts
Honeywell S688A1007 Sail Switch 5" Airflow-Activated Control
Honeywell S688A1007 Sail Switch 5" Airflow-Activated Control
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Your Price:
$87.84
Airflow-Activated SPDT Control for HVAC Systems Rated up to 240v
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Part Number:
S688A1007
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Description
Honeywell S688A1007 Sail Switch, a trusted airflow-activated SPDT switch designed to control electronic air cleaners, humidifiers, and other auxiliary equipment. Engineered for precision and ease of installation, this switch responds to airflow changes, making it ideal for residential and light commercial applications.
The S688A must be mounted in the cold air return duct where the sail will be in the direct path of an unrestricted air stream.
Key Features
Airflow-Responsive Activation
: Switch engages at 250 feet per minute (fpm) and disengages at 75 fpm, ensuring accurate airflow detection.
SPDT Snap-Acting Switch
: Provides normally open (N.O.), normally closed (N.C.), and common terminals for flexible wiring.
Durable Sail Design
: Polyester film sail mounted on a micro switch snap mechanism; includes removable spring for vertical or horizontal airflow mounting.
Simplified Installation
: Eliminates the need for direct fan wiring—ideal for multi-speed fans or inaccessible air handlers.
UL Listed & CSA Certified
: Meets safety standards for use in typical indoor environments.
S688A Specification
S688A Product Data
Specifications
Attribute
Details
Model
S688A1007
Switch Type
SPDT
Sail Dimensions
5 in. wide (26.2 sq. in. area)
Insertion Length
10 in.
Electrical Ratings (AFL)
N.O.: 2.0 A @ 24/120 VAC, 1.0 A @ 240 VAC
N.C.: 1.0 A @ 24/120 VAC, 0.5 A @ 240 VAC
Electrical Ratings (ALR)
N.O.: 12.0 A @ 24/120 VAC, 6.0 A @ 240 VAC
N.C.: 6.0 A @ 24/120 VAC, 3.0 A @ 240 VAC
Resistive Ratings
N.O.: 5.0 A @ 24/120 VAC, 2.5 A @ 240 VAC
N.C.: 2.5 A @ all voltages
Ambient Temp Limits
Switch: 125°F (52°C), Sail: 170°F (77°C)
Case Dimensions
2 5/16" H × 3 3/4" W × 2 1/8" D
Mounting Hole Size
1 1/2" × 2 1/4"
Finish
Zinc-plated case and cover
Applications
Electronic air cleaners (e.g., F50A-E series)
Whole-home humidifiers
Duct heaters and damper motors
Airflow verification in forced-air systems
Benefits
Reliable airflow detection for automated HVAC control
Easy retrofit into existing ductwork
Reduces wiring complexity in multi-speed fan setups
Ideal for systems with voltage or phase differences between fan and controlled equipment
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