About Exhaust Fans
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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.
Panel Fans

Mount these fans to a wide range of surfaces, such as posts, columns, and ceilings. They’re direct-drive fans, so they have fewer moving parts than belt-drive fans and require less maintenance. To suspend them, use the mounting chain kit (sold separately). Use mounting brackets (sold separately) to mount them to posts and columns.
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. | Frame Material | Blade Material | Environmental Rating | Each | |
Single Phase—Hardwire | |||||||||||||
Non-Oscillating | |||||||||||||
50" | 30,800 | 600 | 1 | 208-240V AC (9.9-11.3 A) | 2 15/16 | 54" | 54" | 17 3/4" | Galvanized Steel | Plastic | IP65 | 0000000 | 000000000 |
Three Phase—Hardwire | |||||||||||||
Non-Oscillating | |||||||||||||
50" | 29,600 | 600 | 1 | 380-460V AC (5.2-6.2 A) | 2 15/16 | 54" | 54" | 17 3/4" | Galvanized Steel | Plastic | IP65 | 0000000 | 00000000 |

Chains | ||||
---|---|---|---|---|
No. of | Lg. | Includes | Each | |
3 | 72" | Six Threaded Connecting Links, Three Eyebolts, Six Nuts for Eyebolts | 0000000 | 000000 |


For Post | ||||||
---|---|---|---|---|---|---|
Dia. | Wd. | Material | Color | Mounting Fasteners Included | Each | |
For Round Posts | ||||||
3"-3 1/2" | __ | Powder-Coated Steel | Black | Yes | 00000000 | 0000000 |
4"-4 1/2" | __ | Powder-Coated Steel | Black | Yes | 00000000 | 000000 |
5"-5 1/2" | __ | Powder-Coated Steel | Black | Yes | 00000000 | 000000 |
6"-6 1/2" | __ | Powder-Coated Steel | Black | Yes | 00000000 | 000000 |
For Square Posts | ||||||
__ | 4"-4 1/2" | Powder-Coated Steel | Black | Yes | 00000000 | 000000 |
__ | 6"-6 1/2" | Powder-Coated Steel | Black | Yes | 00000000 | 000000 |
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 | |
Single Phase—Hardwire | |||||||||||||||
Non-Oscillating | |||||||||||||||
50" | 17,000 | 825 | 1 | 240V AC (5 A) | 1 | 54 1/2" | 54 1/2" | 18 3/8" | Direct | Galvanized Steel | Steel | No | 3/8" | 0000000 | 000000000 |
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 | 00000000 |

Chains | ||||
---|---|---|---|---|
No. of | Lg. | Includes | Each | |
3 | 72" | Six Threaded Connecting Links, Three Eyebolts, Six Nuts for Eyebolts | 0000000 | 000000 |
Exterior-Wall-Mount Exhaust Fans

Good when you don't have room to mount an exhaust fan inside your facility, these fans attach to openings in outside walls. Use them to draw stagnant and humid air out of a room or area. Belt-drive fans are quieter than direct-drive fans. They also last longer because their components can be replaced if damaged. Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments. They mount through the wall, so you'll need to cut a hole on the inside of the wall as well.
Note: Airflow depends on the resistance created by louvers, filters, and ductwork in your system. 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.
For Opening | Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Blade Dia. | Airflow @ Static Pressure | Drive Type | Motor Speed, rpm | Power, hp | Dia. | Ht. | Wd. | Dia. | Dp. | Motor Enclosure Type | Includes | Each | |
120/230V AC, Single Phase—Hardwire | |||||||||||||
50" | 16,200 cfm @ 0.2 in. of H₂O 12,100 cfm @ 0 in. of H₂O | Belt | 1,725 | 1 | 50" | 56" | 56" | 63" | 47 1/4" | Totally Enclosed | Louvers | 0000000 | 000000000 |
230/460V AC, Three Phase—Hardwire | |||||||||||||
50" | 12,100 cfm @ 0.2 in. of H₂O 21,600 cfm @ 0 in. of H₂O | Belt | 800 | 1/2 | 50" | 56" | 56" | 63" | 47 1/4" | Totally Enclosed | Louvers | 0000000 | 00000000 |