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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.
About Sound Levels
To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.
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About Exhaust Fans
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Direct-Drive Upblast Roof-Mount Exhaust Fans
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Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. These exhaust fans draw stagnant and humid air out through your roof and then expel it up and away from the roof surface. All fans have a disconnect switch to turn off the power for servicing.
Fans with a brushless motor have advanced electronic controls that allow them to precisely operate at wide range of speeds, making them more efficient, quieter, and longer lasting than fans with a standard motor.
Fans that cannot be sold to the listed areas are restricted by energy efficiency requirements.
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.
Fans | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting Bases | ||||||||||||||||
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Base Wd. | Wt., lbs. | Max. Ambient Temp., °F | Housing Material | Specifications Met | Cannot Be Sold To | Each | Each | |||
Open Dripproof Motor Enclosure | |||||||||||||||||
120V AC, Single Phase—Hardwire | |||||||||||||||||
| 1 | 9" | 300 cfm @ 1/2 in. of H₂O 400 cfm @ 0 in. of H₂O | 54 dBA @ 5 ft. | 1,300 | 1/32 | 17 3/4" | 14 1/2" | 19" | 40 | 120° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 0000000 | 0000000 | 0000000 |
| 1 | 11" | 400 cfm @ 1/2 in. of H₂O 710 cfm @ 0 in. of H₂O | 60 dBA @ 5 ft. | 1,625 | 3/16 | 22" | 18" | 19" | 43 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 000000 | 0000000 | 000000 |
| 1 | 11 3/4" | 750 cfm @ 1/2 in. of H₂O 1,050 cfm @ 0 in. of H₂O | 59 dBA @ 5 ft. | 1,300 | 1/4 | 25 1/2" | 25 1/4" | 21" | 67 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 000000 | 0000000 | 000000 |
| 1 | 12" | 1,100 cfm @ 1/2 in. of H₂O 1,300 cfm @ 0 in. of H₂O | 68 dBA @ 5 ft. | 1,625 | 1/3 | 25 1/2" | 25 1/4" | 21" | 50 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 000000 | 0000000 | 000000 |
| 1 | 13 3/4" | 1,500 cfm @ 1/2 in. of H₂O 1,950 cfm @ 0 in. of H₂O | 68 dBA @ 5 ft. | 1,475 | 1/2 | 28 7/8" | 27 1/4" | 21" | 78 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 000000 | 0000000 | 000000 |
| 1 | 16" | 2,450 cfm @ 1/2 in. of H₂O 2,900 cfm @ 0 in. of H₂O | 69 dBA @ 5 ft. | 1,625 | 3/4 | 31 7/8" | 30 1/2" | 24 3/4" | 80 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 00000000 | 0000000 | 000000 |
208-230V AC, Three Phase—Hardwire | |||||||||||||||||
| 1 | 18 3/4" | 3,750 cfm @ 1/2 in. of H₂O 4,100 cfm @ 0 in. of H₂O | 68 dB @ 5 ft. | 1,150 | 2 | 37 3/8" | 33 3/4" | 28" | 184 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 1 | 20 3/4" | 5,900 cfm @ 1/2 in. of H₂O 6,450 cfm @ 0 in. of H₂O | 85 dBA @ 5 ft. | 1,425 | 5 | 37 3/8" | 33 1/4" | 28" | 221 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 1 | 24" | 7,000 cfm @ 1/2 in. of H₂O 7,750 cfm @ 0 in. of H₂O | 72 dBA @ 5 ft. | 900 | 3 | 41 7/8" | 37 1/2" | 33" | 312 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 1 | 30" | 9,500 cfm @ 1/2 in. of H₂O 10,500 cfm @ 0 in. of H₂O | 71 dBA @ 5 ft. | 725 | 5 | 51 1/4" | 44" | 40" | 497 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 00000000 | 0000000 | 000000 |
Totally Enclosed Motor Enclosure | |||||||||||||||||
460V AC, Three Phase—Hardwire | |||||||||||||||||
| 2 | 12" | 1,150 cfm @ 1/2 in. of H₂O 1,800 cfm @ 0 in. of H₂O | 71 dBA @ 5 ft. | 3,450 | 1/3 | 18" | 26 3/4" | 22" | 44 | 120° | Steel | __ | __ | 0000000 | 00000000 | 00000000 | 000000 |
| 2 | 16" | 3,050 cfm @ 0 in. of H₂O | 70 dBA @ 5 ft. | 1,750 | 1/3 | 22" | 26 3/4" | 26" | 51 | 120° | Steel | __ | __ | 0000000 | 00000000 | 00000000 | 000000 |
| 2 | 18" | 3,900 cfm @ 0 in. of H₂O | 69 dBA @ 5 ft. | 1,750 | 3/4 | 24" | 34 3/4" | 28" | 77 | 120° | Steel | __ | __ | 0000000 | 00000000 | 00000000 | 000000 |
| 2 | 24" | 7,400 cfm @ 0 in. of H₂O | 66 dBA @ 5 ft. | 1,750 | 3/4 | 30" | 20 3/4" | 36" | 208 | 120° | Steel | __ | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 2 | 30" | 7,300 cfm @ 1/2 in. of H₂O 11,700 cfm @ 0 in. of H₂O | 66 dBA @ 5 ft. | 1,150 | 2 | 36" | 23 1/2" | 42" | 340 | 120° | Steel | __ | CA | 0000000 | 00000000 | 0000000 | 000000 |
| 2 | 36" | 14,800 cfm @ 0 in. of H₂O | 68 dBA @ 5 ft. | 1,150 | 1 | 44" | 26 3/4" | 48" | 370 | 120° | Steel | __ | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 2 | 42" | 17,000 cfm @ 1/2 in. of H₂O 24,700 cfm @ 0 in. of H₂O | 75 dBA @ 5 ft. | 1,150 | 3 | 50" | 29 1/2" | 54" | 471 | 120° | Steel | __ | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 2 | 48" | 25,500 cfm @ 1/2 in. of H₂O 34,300 cfm @ 0 in. of H₂O | 76 dBA @ 5 ft. | 1,150 | 5 | 56" | 38 3/4" | 60" | 650 | 120° | Steel | __ | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 2 | 54" | 34,150 cfm @ 1/2 in. of H₂O 44,700 cfm @ 0 in. of H₂O | 88 dBA @ 5 ft. | 1,125 | 7 1/2 | 62" | 63 1/2" | 64 1/4" | 628 | 120° | Steel | __ | __ | 0000000 | 00000000 | 00000000 | 000000 |
| 2 | 60" | 40,500 cfm @ 1/2 in. of H₂O 57,000 cfm @ 0 in. of H₂O | 97 dBA @ 5 ft. | 1,125 | 10 | 68" | 63 1/2" | 70 1/4" | 640 | 120° | Steel | __ | __ | 0000000 | 00000000 | 00000000 | 000000 |
Totally Enclosed Motor Enclosure—Brushless Motor | |||||||||||||||||
120V AC, Single Phase—Hardwire | |||||||||||||||||
| 1 | 11 3/4" | 1,050 cfm @ 1/2 in. of H₂O 1,300 cfm @ 0 in. of H₂O | 70 dBA @ 5 ft. | 1,575 | 1/3 | 25 1/2" | 25 1/4" | 21" | 64 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 000000 | 0000000 | 000000 |
| 1 | 13 3/4" | 1,550 cfm @ 1/2 in. of H₂O 2,000 cfm @ 0 in. of H₂O | 69 dBA @ 5 ft. | 1,500 | 1/2 | 28 7/8" | 27 1/4" | 21" | 71 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 00000000 | 0000000 | 000000 |
| 1 | 15 3/4" | 2,850 cfm @ 1/2 in. of H₂O 3,200 cfm @ 0 in. of H₂O | 72 dBA @ 5 ft. | 1,550 | 1 | 31 7/8" | 30 1/2" | 24 3/4" | 87 | 300° | Aluminum | AMCA Certified, ETL Listed | __ | 0000000 | 00000000 | 0000000 | 000000 |
Hazardous Location Upblast Roof-Mount Exhaust Fans
With a UL-listed motor, these fans can be used in hazardous environments with combustible gases and dust to draw stagnant and humid air out through your roof, forcing it up and away from its surface.
Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.
Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged.
For technical drawings and 3-D models, click on a part number.
Direct-Drive Exhaust Fans
Fans | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting Bases | ||||||||||||||
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Base Wd. | Wt., lbs. | Max. Ambient Temp., °F | Housing Material | Environmental Rating | Each | Each | ||
Totally Enclosed Motor Enclosure | |||||||||||||||
120/240V AC, Single Phase—Hardwire | |||||||||||||||
| 24" | 3,900 cfm @ 1/2 in. of H₂O 6,900 cfm @ 0 in. of H₂O | 75 dBA @ 5 ft. | 1,150 | 3/4 | 33" | 25" | 36" | 340 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 000000000 | 0000000 | 0000000 |
| 30" | 5,900 cfm @ 1/2 in. of H₂O 9,350 cfm @ 0 in. of H₂O | 72 dBA @ 5 ft. | 1,150 | 1 | 39" | 28" | 42" | 370 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
240/460V AC, Three Phase—Hardwire | |||||||||||||||
| 36" | 15,700 cfm @ 1/2 in. of H₂O 21,000 cfm @ 0 in. of H₂O | 79 dBA @ 5 ft. | 1,150 | 3 | 45" | 31" | 48" | 480 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
| 42" | 19,400 cfm @ 1/2 in. of H₂O 25,300 cfm @ 0 in. of H₂O | 80 dBA @ 5 ft. | 1,150 | 3 | 51" | 34" | 54" | 520 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
| 48" | 31,600 cfm @ 1/2 in. of H₂O 36,200 cfm @ 0 in. of H₂O | 89 dBA @ 5 ft. | 1,150 | 7 1/2 | 57" | 37" | 60" | 670 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
Belt-Drive Exhaust Fans
Fans | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting Bases | ||||||||||||||
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Base Wd. | Wt., lbs. | Max. Ambient Temp., °F | Housing Material | Environmental Rating | Each | Each | ||
Totally Enclosed Motor Enclosure | |||||||||||||||
120/240V AC, Single Phase—Hardwire | |||||||||||||||
| 24" | 3,530 cfm @ 1/2 in. of H₂O 6,150 cfm @ 0 in. of H₂O | 71 dBA @ 5 ft. | 1,750 | 3/4 | 33" | 25" | 36" | 340 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 000000000 | 0000000 | 0000000 |
| 30" | 2,950 cfm @ 1/2 in. of H₂O 9,800 cfm @ 0 in. of H₂O | 68 dBA @ 5 ft. | 1,750 | 3/4 | 39" | 28" | 42" | 410 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
240/460V AC, Three Phase—Hardwire | |||||||||||||||
| 36" | 20,200 cfm @ 1/2 in. of H₂O 24,100 cfm @ 0 in. of H₂O | 82 dBA @ 5 ft. | 1,750 | 5 | 45" | 31" | 48" | 590 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
| 42" | 22,400 cfm @ 1/2 in. of H₂O 27,800 cfm @ 0 in. of H₂O | 78 dBA @ 5 ft. | 1,750 | 5 | 51" | 34" | 54" | 720 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
| 48" | 28,600 cfm @ 1/2 in. of H₂O 36,700 cfm @ 0 in. of H₂O | 80 dBA @ 5 ft. | 1,750 | 5 | 57" | 37" | 60" | 840 | 100° | Steel | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | 0000000 | 00000000 | 0000000 | 000000 |
Direct-Drive Exhaust Fans
With fewer moving parts than belt-drive fans, these direct-drive exhaust fans require less maintenance. They have a built-in grease pan to collect waste while cooking. Mount these fans directly to your roof with the attached mounting brackets. They meet UL standards for ventilation in residential, commercial, and institutional kitchens.
For technical drawings and 3-D models, click on a part number.
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | No. of Speeds | Power, hp | Overall Ht. | Base Wd. | Max. Ambient Temp., °F | Housing Material | Blade Material | Features | Specifications Met | Each | |
Totally Enclosed Motor Enclosure | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
120V AC, Single Phase—Hardwire | ||||||||||||||
| 12" | 1,250 cfm @ 1/2 in. of H₂O 1,500 cfm @ 0 in. of H₂O | 64 dB @ 5 ft. | 1,725 | Variable | 1 | 51 1/8" | 29 1/2" | 350° | Steel | Aluminum | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 000000000 |
| 14" | 2,100 cfm @ 1/2 in. of H₂O 2,500 cfm @ 0 in. of H₂O | 66 dB @ 5 ft. | 1,650 | Variable | 1 | 55 3/8" | 31" | 350° | Steel | Aluminum | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 00000000 |
Open Dripproof Motor Enclosure | ||||||||||||||
208V AC, Three Phase—Hardwire | ||||||||||||||
| 16" | 3,000 cfm @ 1/2 in. of H₂O 3,500 cfm @ 0 in. of H₂O | 71 dB @ 5 ft. | 1,650 | Variable | 1 1/2 | 59 3/4" | 32 5/8" | 350° | Steel | Aluminum | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 00000000 |
| 19" | 3,800 cfm @ 1/2 in. of H₂O 4,500 cfm @ 0 in. of H₂O | 76 dB @ 5 ft. | 1,175 | Variable | 1 1/2 | 66 1/8" | 37 1/2" | 350° | Steel | Aluminum | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 00000000 |
| 21" | 5,000 cfm @ 1/2 in. of H₂O 5,500 cfm @ 0 in. of H₂O | 77 dB @ 5 ft. | 1,275 | Variable | 3 | 71 7/8" | 38 1/4" | 350° | Steel | Aluminum | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 00000000 |
| 25" | 5,500 cfm @ 1/2 in. of H₂O 6,500 cfm @ 0 in. of H₂O | 72 dB @ 5 ft. | 900 | Variable | 3 | 80 3/8" | 49 1/4" | 350° | Steel | Steel | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 00000000 |
| 31" | 7,000 cfm @ 1/2 in. of H₂O 8,500 cfm @ 0 in. of H₂O | 72 dB @ 5 ft. | 675 | Variable | 5 | 85 7/8" | 52 1/4" | 350° | Steel | Steel | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 00000000 |
| 37" | 12,000 cfm @ 1/2 in. of H₂O 14,000 cfm @ 0 in. of H₂O | 72 dB @ 5 ft. | 575 | Variable | 7 1/2 | 93 1/4" | 59" | 350° | Steel | Steel | Grease Pan | UL 705, UL 762, ULC-S645, ETL Listed | 0000000 | 00000000 |