About Exhaust Fans
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About Electric Motors
When replacing a motor, use the information on your motor’s nameplate to guide your selection.
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About Sound Levels
Measured in decibels (dB), volume ratings indicate how much noise equipment makes. Some common volume levels include a whisper @ 20 dB, a refrigerator @ 40 dB, a conversation @ 60 dB, and a light machine shop @ 90 dB. OSHA recommends hearing protection for exposure to 80 dB and greater.
Corrosion-Resistant Belt-Drive Ceiling-Mount Fans
For rust resistance and durability, these fans have a polyethylene housing. They’re belt-drive fans, so they’re quieter and will last longer than direct-drive fans because their parts can be replaced if worn or damaged.
Fans with an open-dripproof motor enclosure are for indoor locations that are relatively clean and dry.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current, A | Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Blade Material | Guard Material | Specifications Met | Each | |
Open Dripproof Motor Enclosure—Polyethylene Plastic Housing | |||||||||||||||
Three Phase—Hardwire | |||||||||||||||
| 240V AC 460V AC | 2.3 1.1 | 34" | 6,900 | 69 dB @ 15 ft. | 500 | 2 | 1/2 | 37 5/8" | 36 1/4" | 17 5/8" | Aluminum | Steel | ETL Listed, C-ETL Listed | 0000000 | 000000000 |
Hanging Box Fans
Easily hang these fans from your ceiling using the attached bracket and a mounting chain kit (sold separately). They're more powerful than our standard box fans. Made with a heavy duty 12-gauge welded wire mesh guard, these fans will stand up to tough environments. Plastic guard clips help reduce vibration between the housing and the guard, making these fans quieter. They require little maintenance thanks to their totally enclosed, high-efficiency motor and sealed ball bearings.
Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Motor Speed, rpm | No. of Speeds | Voltage (Current) | Power, hp | Ht. | Wd. | Dp. | Drive Type | Housing Material | Blade Material | Mounting Fasteners Included | Mounting Hole Dia. | Each | |
Three Phase—Hardwire | |||||||||||||||
Non-Oscillating | |||||||||||||||
| 50" | 17,400 | 825 | 1 | 240V AC (5.6 A) 460V AC (2.3 A) | 1 | 54 1/2" | 54 1/2" | 18 3/8" | Direct | Galvanized Steel | Steel | No | 3/8" | 0000000 | 000000000 |
Chains | ||||
|---|---|---|---|---|
| No. of | Lg. | Includes | Each | |
| 3 | 72" | Six Threaded Connecting Links, Three Eyebolts, Six Nuts for Eyebolts | 0000000 | 000000 |
Direct-Drive Fan Motors
Since they have fewer moving parts, you can use these direct-drive motors to build fans that require less maintenance than fans with belt-drive motors. Mount them directly to a fan column.
For technical drawings and 3-D models, click on a part number.
Shaft | Overall | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Motor Speed, rpm | Power, hp | Dia. | Lg. | Direction of Operation | Current, A | Voltage | Lg. | Wd. | Ht. | Insulation Class | Overload Protection Type | Each | |
NEMA 48Z—Welded (D-Profile Shaft) | |||||||||||||
Single Phase—Hardwire | |||||||||||||
| 1,100 | 1/3 | 1/2" | 3 1/4" | Clockwise or Counterclockwise | 4.5 2.3 | 120V AC 240V AC | 10" | 5 5/8" | 8 1/8" | B | Automatic | 0000000 | 0000000 |
Dust-Resistant Direct-Drive Wall-Mount Exhaust Fans
Better suited for dirty, dusty, and damp environments than standard direct-drive fans, these have a totally enclosed motor enclosure. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.
Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.
For technical drawings and 3-D models, click on a part number.
Overall | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Wt., lbs. | Max. Ambient Temperature | Frame Material | Blade Material | Specifications Met | Each | ||
120V AC, Single Phase—Hardwire | ||||||||||||||||
| 3 | 20" | 2,925 | Not Rated | 1,140 | 2 | 1/4 | 23" | 23" | 12" | 35 | 100° F | Steel | Aluminum | UL Recognized Component | 0000000 | 0000000 |
Direct-Drive Wall-Mount Exhaust Fans
Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Hole | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Dp. | Blade Material | Guard Material | Dia. | Location | No. of | Each | |
| 20" | 2,900 | 65 dBA @ 5 ft. | 1,125 | 2 | 1/4 | 25 1/2" | 25 1/2" | 8 3/4" | Aluminum | Steel | 1/4" | Guard | 4 | 0000000 | 0000000 |
Light Duty Direct-Drive Wall-Mount Exhaust Fans with Louvers
These light duty fans are designed for use without duct. They come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area. All have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.
For technical drawings and 3-D models, click on a part number.
For Opening | Overall | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Ht. | Wd. | Dp. | Max. Ambient Temperature | Control Type | Frame Material | Blade Material | Mount. Fasteners Included | Mount. Hole Dia. | Specifications Met | Each | |
120V AC, Single Phase—Hardwire | ||||||||||||||||||
| 20" | 2,925 | 1,140 | 2 | 1/4 | 20 1/2" | 20 1/2" | 23" | 23" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 0000000 |
120V AC, Single Phase—Three-Prong Plug | ||||||||||||||||||
| 20" | 2,925 | 1,140 | 2 | 1/4 | 20 1/2" | 20 1/2" | 23" | 23" | 9 1/2" | 100° F | Pull Switch | Steel | Aluminum | No | 5/16" | UL Recognized Component | 00000000 | 000000 |
High-Output Blowers
Powerful and durable, these blowers are able to blow air through larger systems that have more airflow resistance than standard blowers can handle. They install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, drying, ventilating, and exhausting. Blowers that weigh 280 lbs. or less can also be used for material conveying. Blowers with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water. It is the responsibility of users in California to follow local energy efficiency regulations. Operating these blowers at a high airflow may violate these regulations.
For technical drawings and 3-D models, click on a part number.
High-Output Blowers | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Replacement Wheels | ||||||||||||||
| Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Outlet Dia. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Wt., lbs. | Temp. Range, °F | Each | Each | ||
Totally Enclosed Motor Enclosure | |||||||||||||||
230/460V AC, Three Phase—Hardwire | |||||||||||||||
| 280 cfm @ 5 in. of H₂O 400 cfm @ 3 in. of H₂O | 65 dBA @ 15 ft. | 3,450 | 3/4 | 3 15/16" | 5" | 9 3/4" | 17 3/4" | 15 5/16" | 14 1/4" | 61 | -10° to 150° | 0000000 | 000000000 | 00000000 | 0000000 |
High-Output Blowers | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Outlet | Overall | Replacement Wheels | ||||||||||||||
| Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Ht. | Wd. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Wt., lbs. | Temp. Range, °F | Each | Each | ||
Totally Enclosed Motor Enclosure | ||||||||||||||||
230/460V AC, Three Phase—Hardwire | ||||||||||||||||
| 505 cfm @ 5 in. of H₂O 635 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1 1/2 | 4" | 3 1/2" | 6" | 10 5/8" | 19" | 20 3/4" | 15 5/8" | 64 | -15° to 180° | 0000000 | 0000000 | 0000000 | 0000000 |
High-Output Hazardous Location Spark-Resistant Blowers
Powerful and durable, these blowers are able to blow air through larger systems that have more airflow resistance than standard hazardous location spark-resistant blowers can handle. They have an explosion-proof motor that is UL listed for hazardous locations. They also have an aluminum housing for spark resistance. These blowers install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water. It is the responsibility of users in California to follow local energy efficiency regulations. Operating these blowers at a high airflow may violate these regulations.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Outlet Dia. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Wt., lbs. | Temp. Range, °F | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
With Round Outlet and Inlet | |||||||||||||||
230/460V AC, Three Phase—Hardwire | |||||||||||||||
| 400 cfm @ 3 in. of H₂O | 70 dBA @ 15 ft. | 3,450 | 3/4 | 4" | 5" | 10 1/4" | 17 1/16" | 14 11/16" | 17 3/16" | 69 | -10° to 150° | No | 7/16" | 00000000 | 000000000 |
| 850 cfm @ 3 in. of H₂O | 76 dBA @ 15 ft. | 3,450 | 2 | 5" | 6" | 12" | 19 11/16" | 17 5/16" | 17 7/16" | 126 | -10° to 150° | No | 7/16" | 00000000 | 00000000 |
Corrosion-Resistant Blowers
A 304 stainless steel housing offers good corrosion resistance. These blowers install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
For technical drawings and 3-D models, click on a part number.
Outlet | Overall | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Ht. | Wd. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Temp. Range, °F | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
With Rectangular Outlet and Round Inlet—Totally Enclosed Motor Enclosure | |||||||||||||||
230/460V AC, Three Phase—Hardwire | |||||||||||||||
| 505 cfm @ 5 in. of H₂O 635 cfm @ 3 in. of H₂O | 75 dBA @ 15 ft. | 3,450 | 1 1/2 | 4" | 3 1/2" | 6" | 10 5/8" | 19" | 20 3/4" | 15 5/8" | -15° to 180° | No | 3/8" | 0000000 | 000000000 |