This exhaust fan includes NEMA 1 junction box, and is made of aluminum. It features energy saving units with EC motors, fresh outside air is drawn in under the motor cover, and measures 28⅜ inch width, 25½ inch height, 28⅜ inch length. This exhaust fan is designed for use with: industrial/commercial applications. In addition, it is one-phase, 60 Hz, is roof mountable, has variable speeds, is direct drive, 2,797 cfm @ 0.125 in SP air flow, 28⅜ inch diameter, and ¾ horsepower.
Technical Specs
ItemExhaust Fan
AssemblyAssembled
Base Length22 in
Base ShapeSquare
Phase1
Exhaust Airflow @ 0.000 in SP2,412 cfm
High-Efficiency MotorHigh-Efficiency Motor
Includes Drive PackageDrive Package Included
Mounting LocationRoof
Exhaust Airflow @ 0.500 in SP2,566 cfm
Housing MaterialAluminum
Motor EnclosureOpen Dripproof
Overall Diameter28 3/8 in
Overall Length28 3/8 in
Airflow @ 0.000 in SP2,875 cfm
Base Height1 3/4 in
Compatible Curb Manufacturer Part Number2RB77, 2ZV83, 3C437, 4C454, 4HX40, 4HX48
Current6.6/6.1 A
Cutout Size21.5 in L x 21.5 in W
Electrical ConnectionPower Cord
Exhaust Airflow @ 0.250 in SP2,719 cfm
FeaturesEnergy Saving Units Feature Ec Motors Which Allow up to 80% Useable Turndown, Fresh Outside Air is Drawn in Under the Motor Cover to Maximize Motor Life, Fully Rolled Wind Band Bead for Increased Stability and Easy Transport, High-Efficiency Brushless DC Motor, Motor Features Potentiometer Dial for Speed Adjustment, NEMA 1 Junction Box Located in Motor Enclosure, Nonoverloading Centrifugal Wheel Design, Optional NEMA 1 and 4 Disconnects Available
Housing Length28.4 in
Housing Width28.4 in
Maximum Ambient Temperature130 Degrees F
Maximum Inlet Air Temperature130 Degrees F
Mount TypeRoof Curb
Safety FeaturesBird Screen, Wind Band
Spark Resistant Construction TypeA
Wheel TypeBackward Inclined
Drive TypeDirect Drive
Wheel Diameter14 3/4 in
Base Width22 in
Nameplate Voltage208-230V AC
Motor Horsepower3/4 hp
For High-Static Pressure ApplicationsNot For High-Static Pressure Applications
Sound Level10.5 sones @ 0.875 in SP and 5 ft, 11.0 sones @ 0.750 in SP and 5 ft, 11.5 sones @ 0.625 in SP and 5 ft, 12.0 sones @ 0.500 in SP and 5 ft, 12.5 sones @ 0.375 in SP and 5 ft, 12.9 sones @ 0.250 in SP and 5 ft, 13.2 sones @ 0.125 in SP and 5 ft, 14.8 sones @ 0.875 in SP and 5 ft, 14.8 sones @ 1.000 in SP and 5 ft, 14.8 sones @ 1.250 in SP and 5 ft, 14.9 sones @ 1.500 in SP and 5 ft, 15.0 sones @ 0.750 in SP and 5 ft, 16.0 sones @ 0.625 in SP and 5 ft, 16.8 sones @ 0.500 in SP and 5 ft, 17.2 sones @ 0.375 in SP and 5 ft, 17.4 sones @ 0.250 in SP and 5 ft, 18.0 sones @ 0.125 in SP and 5 ft, 7.3 sones @ 0.625 in SP and 5 ft, 8.0 sones @ 0.500 in SP and 5 ft, 8.5 sones @ 0.375 in SP and 5 ft, 9.0 sones @ 0.250 in SP and 5 ft, 9.4 sones @ 0.125 in SP and 5 ft, 9.8 sones @ 1.000 in SP and 5 ft, Fan RPM 1050: 9.5 sones @ 0.000 in SP and 5 ft, Fan RPM 1300: 13.5 sones @ 0.000 in SP and 5 ft, Fan RPM 1550: 17.7 sones @ 0.000 in SP and 5 ft
Speed ControllableSpeed Controllable
Country of OriginUnited States
(subject to change)
