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.
About Exhaust Fans
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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.
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 |
Belt-Drive Wall-Mount Exhaust Fans with Louvers
These fans come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. Use these fans to draw stagnant and humid air out of a room or area.
Fans with an open dripproof motor enclosure are for relatively clean, dry, indoor locations. Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.
For Opening | Overall | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blade Dia. | Airflow, cfm | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Ht. | Wd. | Ht. | Wd. | Dp. | Wt., lbs. | Max. Ambient Temperature | Housing Material | Frame Material | Blade Material | Mount. Fasteners Included | Mount. Hole Dia. | Each | |
Open Dripproof Motor Enclosure | |||||||||||||||||||
120V AC, Single Phase—Hardwire | |||||||||||||||||||
| 48" | 14,900 | 57 dB @ 5 ft. | 350 | 1 | 1 | 55" | 55" | 54 1/2" | 54 1/2" | 19" | 266 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 000000000 |
Totally Enclosed Motor Enclosure | |||||||||||||||||||
230/460V AC, Three Phase—Hardwire | |||||||||||||||||||
| 48" | 14,900 | 57 dB @ 5 ft. | 350 | 1 | 1 | 55" | 55" | 54 1/2" | 54 1/2" | 25" | 324 | 104° F | Steel | Steel | Steel | No | 3/16" | 0000000 | 00000000 |
Blade | ||||
|---|---|---|---|---|
| Dia. | Material | No. of | Each | |
Single, Three Phase | ||||
| 48" | Galvanized Steel | 4 | 00000000 | 0000000 |
Supply-Side Guards for Wall-Mount Exhaust Fans
Protect the supply side of your wall-mount exhaust fans from debris.
Overall | |||||||
|---|---|---|---|---|---|---|---|
| For Blade Dia. | Ht. | Wd. | Dp. | Material | Mounting Fasteners Included | Each | |
| 48" | 54 1/2" | 54 1/2" | 36 1/2" | Galvanized Steel | Yes | 00000000 | 000000000 |