Ceiling Fan Boxes | McMaster-Carr

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Voltage

Knockout Trade Size

Mounting Location

Depth

Blade Diameter

For Duct Shape

Volume (Sound) @ Distance

Opening Width

Capacity

For Duct Diameter

Airflow

Less than 1,000 ft³/min

1,000 ft³/min to 3,999 ft³/min

4,000 ft³/min to 9,999 ft³/min

10,000 ft³/min to 19,999 ft³/min

20,000 ft³/min or greater

Number of Speeds

Certification

UL Recognized Component

Current

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

Bulbs Included

Guard Width

Volume (Sound)

For Duct Width

Guard Length

Blade Rotation

Overall Height

Number of Knockouts

47 Products

About Exhaust Fans

About Calculating the Airflow Required for Air Cleaning

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 Air Preparation

Use these fans to draw stagnant and humid air out of a room.

Fans that cannot be sold to the regions listed do not meet local energy efficiency requirements.

For technical drawings and 3-D models, click on a part number.

For Round Duct

				Guard		For Opening
	For Duct Dia.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Wd.	Dia.	Dp.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met	Cannot Be Sold To		Each
120V AC, Single Phase—Hardwire
1	3"	50	48	9 1/4"	9"	7 1/4"	__	3 5/8"	Steel	No	1/8"	Ceiling, Wall	Backdraft-Preventing Damper	UL Listed	CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA	0000000	000000
1	3"	70	54	9 1/4"	9"	7 1/4"	__	3 5/8"	Steel	No	1/8"	Ceiling, Wall	Backdraft-Preventing Damper	UL Listed	CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA	0000000	00000
1	4"	80	31	12"	11 1/2"	9 1/4"	__	5 3/4"	Steel	No	3/16"	Ceiling, Wall	Backdraft-Preventing Damper	UL Listed	__	0000000	00000
2	8"	200	58	11 1/2"	11 1/2"	__	8 1/4"	7"	Steel	No	3/16"	Ceiling	Backdraft-Preventing Damper	UL Listed	CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA	0000000	000000
120V AC, Single Phase—Plug
1	4"	110	28	12"	11 1/2"	9 1/4"	__	5 3/4"	Steel	Yes	1/4"	Ceiling, Wall	Backdraft-Preventing Damper	UL Listed	__	000000	000000

For Rectangular Duct

	For Duct				Guard		For Opening
	Ht.	Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Wd.	Dp.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met	Cannot Be Sold To		Each
120V AC, Single Phase—Hardwire
3	3 1/4"	10"	160	51	11 1/2"	11 1/2"	12"	3 1/4"	Steel	No	3/16"	Ceiling, Wall	Backdraft-Preventing Damper	UL Listed	CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA	0000000	0000000

For Oval Duct

For Duct				Guard		For Opening
Oval Ht.	Oval Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Wd.	Dp.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met		Each
120V AC, Single Phase—Hardwire
2"	4"	50, 80, 100	31	13 3/4"	13"	10 1/4"	3 3/8"	Steel	Yes	7/16"	Ceiling, Wall	Backdraft-Preventing Damper	C-ETL Listed, ETL Listed	0000000	0000000

For Round or Oval Duct

	For Duct				Guard		For Opening
For Duct Dia.	Oval Ht.	Oval Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Wd.	Dp.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met		Each
120V AC, Single Phase—Hardwire
3"	2"	4"	80	28	13 3/4"	13"	10 1/2"	4"	Steel	Yes	7/16"	Ceiling, Wall	Backdraft-Preventing Damper	C-UL Listed, UL Listed	0000000	0000000

Ceiling-Mount Lavatory Exhaust Fans with Lights

These fans have a light that can operate alone or share a switch with the fan. Use them to draw stagnant and humid air out of a room.

Fans that cannot be sold to the regions listed do not meet local energy efficiency requirements.

For technical drawings and 3-D models, click on a part number.

			Guard		For Opening			Bulb
For Duct Dia.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Wd.	Dp.	Housing Material	Included	No. Required	Max. Wattage, W	Mount. Fasteners Included	Mount. Hole Dia.	Features	Specifications Met	Cannot Be Sold To		Each
For Round Duct
120V AC, Single Phase—Hardwire
4"	50	41	11 1/8"	10 5/8"	8"	5 3/4"	Steel	No	1	100	No	3/16"	Backdraft-Preventing Damper, Light	UL Listed	CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA	0000000	000000
4"	70	38	12 1/8"	11 1/2"	9 1/4"	5 3/4"	Steel	No	1	100	No	3/16"	Backdraft-Preventing Damper, Light	UL Listed	CO, DC, MA, MD, NJ, NV, NY, OR, RI, VT, WA	0000000	000000
120V AC, Single Phase—Plug
4"	110	28	12 1/2"	11 3/4"	9 1/4"	5 3/4"	Steel	Built-In LED	__	__	Yes	1/4"	Backdraft-Preventing Damper, Light	UL Listed	__	0000000	000000

Motion-Activated Ceiling-Mount Lavatory Exhaust Fans

When a room is occupied, these fans detect the motion and turn on. Set them to turn off anywhere from 30 seconds to 80 minutes after motion is no longer detected. They also sense humidity levels in the room and turn the fan on until the humidity level falls below a set percentage. You can set them to a maximum of 80% relative humidity.

Fans

			Guard		For Opening
For Duct Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Lg.	Wd.	Dp.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia	Features		Each
For Round Duct
120V AC, Single Phase—Hardwire
6"	130	23	14 1/4"	14 1/4"	13"	12 7/8"	9 7/8"	Steel	No	3/8"	Backdraft-Preventing Damper	0000000	0000000

Fans with Built-In LED

			Guard		For Opening
For Duct Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Lg.	Wd.	Dp.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia	Features		Each
For Round Duct
120V AC, Single Phase—Hardwire
6"	130	23	17"	15 7/8"	13"	12 7/8"	9 7/8"	Steel	No	3/8"	Backdraft-Preventing Damper, Light	0000000	0000000

Ultra-Quiet Ceiling-Mount Lavatory Exhaust Fans

Keep noise to a minimum with 1/2" thick acoustical insulation and vibration-resistant motor mounts. Use these fans to draw stagnant and humid air out of a room.

Speed controls are optional. They fit single-gang electrical boxes.

For technical drawings and 3-D models, click on a part number.

For Round Duct

Fan for Round Duct

Speed Control

Exhaust Fans
			Guard										Speed Controls
For Duct Dia.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met		Each		Each
120V AC, Single Phase—Hardwire
8"	130	10	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	0000000	0000000	000000
8"	200	28	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000
8"	230	32	14"	14"	Steel	No	1/2"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000
8"	270	33	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000
8"	310	41	14"	14"	Steel	Yes	13/32"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	000000	0000000	00000

For Rectangular Duct

Fan for Rectangular Duct

Speed Control

Exhaust Fans
For Duct				Guard										Speed Controls
Ht.	Wd.	Airflow, cfm	Volume, dBA	Lg.	Wd.	Housing Material	Mount. Fasteners Included	Mount. Hole Dia.	Mount. Location	Features	Specifications Met		Each		Each
120V AC, Single Phase—Hardwire
5"	19"	480	40	23 1/4"	14"	Steel	No	1/2"	Ceiling, Wall	Backdraft-Preventing Damper, Vibration-Resistant Mounts	UL Listed	0000000	0000000	0000000	000000

Ceiling Fans

Mount these fans on flat ceilings. They include a support cable or downrods to mount them into joists. All have optional speed control.

Optional installation kits (sold separately) allow fans to mount between joists.

Fans that cannot be sold to the listed regions do not meet energy efficiency regulations.

For technical drawings and 3-D models, click on a part number.

Fans

Fan

Installation Kit

Fans
				Blade									Installation Kits
Blade Dia.	Airflow, cfm	No. of Speeds	Current, A	Rotation	Material	Color	For Min. Ceiling Ht., ft.	Mounting Fasteners Included	Includes	Specifications Met		Each		Each
120V AC, Single Phase—Hardwire
Non-Oscillating
36"	2,126	1	0.3	Reversible	Painted Steel	White	10	Yes	Support Cable, 24" Downrod	C-UL Listed, UL Listed	0000000	0000000	0000000	000000
48"	3,861	1	0.4	Reversible	Painted Steel	White	10	Yes	Support Cable, 24" Downrod	C-UL Listed, UL Listed	0000000	000000	0000000	00000
56"	8,959	1	0.9	Nonreversible	Painted Steel	White	10	Yes	Support Cable, 24" Downrod	C-UL Listed, UL Listed	0000000	000000	0000000	00000
60"	6,090	1	0.6	Nonreversible	Painted Steel	White	10	Yes	Support Cable, 24" Downrod	C-UL Listed, UL Listed	0000000	000000	0000000	00000

Fans with LED Light

Plastic Fan with LED Light

Powder-Coated Aluminum Fan with LED Light

				Blade
Blade Dia.	Airflow, cfm	No. of Speeds	Current, A	Rotation	Material	Color	Brightness, lumens	For Min. Ceiling Ht., ft.	Mounting Fasteners Included	Includes	Specifications Met	Cannot Be Sold To		Each
120V AC, Single Phase—Hardwire
Non-Oscillating
60"	6,600	6	0.7	Reversible	Plastic	White	1,520	9	Yes	2" Downrod, 9" Downrod, Remote Control	ETL Listed	__	0000000	0000000
60"	13,000	8	0.5	Reversible	Powder-Coated Aluminum	Black	2,600	11	Yes	11" Downrod, Remote Control	ETL Listed, UL 507	__	0000000	00000000
72"	17,900	8	0.6	Reversible	Powder-Coated Aluminum	Black	2,600	11	Yes	11" Downrod, Remote Control	ETL Listed, UL 507	__	0000000	00000000
84"	22,100	8	0.5	Reversible	Powder-Coated Aluminum	Black	2,600	11	Yes	11" Downrod, Remote Control	ETL Listed, UL 507	__	0000000	00000000
96"	22,000	8	1.1	Reversible	Powder-Coated Aluminum	Black	2,600	11	Yes	11" Downrod, Remote Control	ETL Listed, UL 507	Canada	0000000	00000000

Octagonal Steel Outlet Boxes with Knockouts

Knockouts allow you to modify these boxes to fit your application.

For technical drawings and 3-D models, click on a part number.

For Max. No. of Devices	No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Dp.	Capacity, cu. in.	Finish		Each
1	8	1/2, 3/4	4"	4"	1 1/2"	15.5	Zinc Plated	00000000	00000
1	9	1/2	4"	4"	1 1/2"	15.5	Zinc Plated	00000000	0000
1	9	1/2	4"	4"	2 1/8"	21.5	Zinc Plated	00000000	0000

14 1/4" to 22 1/2" Adjustable Hanger Bar

00000000

Each

00000

Extenders

No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Dp.	Capacity, cu. in.	Finish		Each
4	1/2	4"	4"	1 1/2"	15.5	Zinc Plated	00000000	00000

Blank Covers

Ht.	Wd.	Finish	Mounting Fasteners Included		Each
4"	4"	Zinc Plated	No	00000000	00000

Blank Covers with Knockouts

No. of Knockouts	Knockout Trade Size	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1	1/2	4"	4"	Zinc Plated	No	00000000	00000

Covers for NEMA Outlets

For Max. No. of Devices	Ht.	Wd.	Finish	Mounting Fasteners Included		Each
1	4"	4"	Zinc Plated	No	00000000	00000

Fan-Cooled Compressed Air Aftercoolers

These aftercoolers have a fan that chills hot air coming from a compressor. Cooling the air condenses water for removal from your compressed air system. Install a separator (not included) after your aftercooler to collect and discharge water.

For technical drawings and 3-D models, click on a part number.

Air Inlet			Air Outlet							Overall
Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender	Max. Pressure, psi	Max. Flow Rate @ psi	Max. Temp., °F	Cools Air Within	Ht.	Wd.	Dp.	hp		Each
Ceiling-, Floor-, and Wall-Mount
Single Phase, 115-230V AC
1	NPT	Female	1	NPT	Female	250	50 scfm @ 80	350°	15° F of Ambient Air	12 7/8"	19 1/2"	13 3/4"	1/3	0000000	000000000
1 1/2	NPT	Female	1 1/2	NPT	Female	250	100 scfm @ 80	350°	15° F of Ambient Air	13 1/4"	19 1/2"	15 1/8"	1/3	0000000	00000000
1 1/2	NPT	Female	1 1/2	NPT	Female	250	200 scfm @ 80	350°	15° F of Ambient Air	17 1/4"	23 1/4"	16 1/4"	1/2	0000000	00000000

Ceiling-Mount Office Air Cleaners

Save floor space—cleaners mount in a T-bar style ceiling to remove contaminants.

These cleaners cannot be sold to California due to local energy efficiency requirements.

Reusable prefilter can be washed.

Reusable electrostatic filter has an inherent electrostatic charge attracts particles. It can be washed.

				For Ceiling Tile		Overall
Airflow, cfm	Volume	Voltage	Current	Lg.	Wd.	Lg.	Ht.	Wd.	Housing Material	Includes	For Removing	Cannot Be Sold To		Each
White Housing
500	43 dB @ 15 ft.	120V AC	1.8A	24"	48"	23 3/4"	11"	47 3/4"	Steel	Disposable HEPA/Odor-Removal Filter (Captures 99.97% of particles down to 0.3 microns), Reusable Prefilter	Dust and Particles	CA	0000000	000000000
650	45 dB @ 15 ft.	120V AC	2.6A	24"	48"	23 3/4"	11"	47 3/4"	Steel	Disposable Odor-Removal After-Filter, Reusable Electrostatic Filter (Captures 97% of particles down to 0.01 microns), Reusable Prefilter	Dust and Particles	CA	0000000	00000000
Black Housing
500	43 dB @ 15 ft.	120V AC	1.8A	24"	48"	23 3/4"	11"	47 3/4"	Steel	Disposable HEPA/Odor-Removal Filter (Captures 99.97% of particles down to 0.3 microns), Reusable Prefilter	Dust and Particles	CA	0000000	00000000
650	45 dB @ 15 ft.	120V AC	2.6A	24"	48"	23 3/4"	11"	47 3/4"	Steel	Disposable Odor-Removal After-Filter, Reusable Electrostatic Filter (Captures 97% of particles down to 0.01 microns), Reusable Prefilter	Dust and Particles	CA	0000000	00000000

Replacement HEPA/Odor-Removal Filters for 500 cfm Airflow	0000000	Each	0000000
Replacement Odor-Removal After-Filters for 650 cfm Airflow	0000000	Each	00000