120 mm Fans | McMaster-Carr

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.

DC Equipment-Cooling Fans

Running on 48V DC power or lower, these compact fans fit inside electronics and other small, heat-sensitive equipment to keep things cool. They're also known as muffin fans. Some meet American and Canadian safety standards.

Fans with sleeve bearings are good for less demanding applications, such as cooling prototypes or parts that aren’t used often.

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

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Overall
Ht.	Wd.	Dp.	Airflow, cfm	Bearing Type	Temp. Range, °F	Volume, dBA	Current, A	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole DIa.	Specifications Met		Each
12V DC—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	104.4	Sleeve	15° to 155°	45	0.56	Plastic	Plastic	No	0.177" (4.5 mm)	UL Recognized Component, C-UL Recognized Component	0000000	000000
24V DC—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	108	Sleeve	15° to 155°	45	0.24	Plastic	Plastic	No	0.17" (4.3 mm)	UL Recognized Component, C-UL Recognized Component	0000000	00000

High-Output Equipment-Cooling Fans

These fans produce greater airflow than standard equipment-cooling fans. Also known as muffin fans and electrically commutated (EC) fans, they keep heat-sensitive equipment such as electronic components cool. Ball bearings keep them running smoothly and quietly, reducing friction to increase their lifespan. All have UL recognized components and some are CSA certified.

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

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Overall
Ht.	Wd.	Dp.	Airflow, cfm	Temp. Range, °F	Volume, dBA	Current, A	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia.	Specifications Met		Each
85-255V AC, Single Phase, 50Hz/60Hz—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	133	15° to 155°	47	0.08	Plastic	Plastic	No	0.173" (4.4 mm)	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	000000
85-265V AC, Single Phase, 50Hz/60Hz—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	80	15° to 155°	49	0.03	Plastic	Plastic	No	0.173" (4.4 mm)	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	00000
90-265V AC, Single Phase, 50Hz/60Hz—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	106	0° to 155°	43	0.06	Plastic	Plastic	No	0.169" (4.3 mm)	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	00000

High-Temperature Equipment-Cooling Fans

While standard equipment-cooling fan motors degrade when used in high-temperature areas, these fans run continuously without issue in temperatures up to 190° F. They are made entirely of metal and are lubricated with high-temperature bearing grease. This means they are often used to cool electronics near higher temperature areas, such as near commercial ovens. These fans have ball bearings that reduce friction as they run, extending their life. Their bearings also decrease noise for quiet operation.

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

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Overall
Height, mm	Width, mm	Depth, mm	Airflow, cfm	Temp. Range, °F	Volume (Sound), dBA	Current, A	Frame Material	Blade Material	Bearing Type	Mounting Fasteners Included	Mounting Hole Diameter, mm	Specifications Met		Each
115V AC, Single Phase, 60Hz—Wire Leads
120	120	38	103	-40° to 190°	46	0.15	Aluminum	Steel	Ball	No	4.3	C-UL Recognized Component, CE Marked, TUV Rheinland Certified, UL Recognized Component	0000000	000000
115V AC, Single Phase, 60Hz—Quick-Disconnect Terminals
120	120	38	103	-40° to 190°	46	0.15	Aluminum	Steel	Ball	No	4.3	C-UL Recognized Component, CE Marked, TUV Rheinland Certified, UL Recognized Component	0000000	00000
230V AC, Single Phase, 60Hz—Wire Leads
120	120	38	103	-40° to 190°	46	0.09	Aluminum	Steel	Ball	No	4.3	C-UL Recognized Component, CE Marked, TUV Rheinland Certified, UL Recognized Component	0000000	00000
230V AC, Single Phase, 60Hz—Quick-Disconnect Terminals
120	120	38	103	-40° to 190°	46	0.09	Aluminum	Steel	Ball	No	4.3	C-UL Recognized Component, CE Marked, TUV Rheinland Certified, UL Recognized Component	0000000	00000

Hazardous Location Equipment-Cooling Fans

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Safely cool electronics and equipment where explosive gases could be present due to equipment failure. ATEX certified, these fans meet European standards for hazardous locations. They’re also IP rated, so they seal out dust and are protected from water if briefly submersed. All have ball bearings that decrease noise for quiet operation. Their bearings reduce heat as they run as well, extending their life.

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

Overall
Height	Width	Depth	Airflow, cfm	Temp. Range, °F	Volume, dBA	Current, A	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Diameter	Environmental Rating	Specifications Met		Each
Square
100-240V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	124	0° to 155°	49	0.18	Plastic	Plastic	No	0.17" (4.3 mm)	IP68; IEC Zone 2 Groups IIC, IIB, IIA	ATEX II 3 G Ex ec IIC Gc, C-UL Recognized Component, CE Marked, TUV Rheinland Certified, UL Recognized Component	0000000	000000
100-240V AC, Single Phase, 50Hz/60Hz—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	124	0° to 155°	49	0.18	Plastic	Plastic	No	0.17" (4.3 mm)	IP68; IEC Zone 2 Groups IIC, IIB, IIA	ATEX II 3 G Ex ec IIC Gc, C-UL Recognized Component, CE Marked, TUV Rheinland Certified, UL Recognized Component	0000000	00000
115-230V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	106	0° to 155°	43	0.08	Plastic	Plastic	No	0.17" (4.3 mm)	IP68; IEC Zone 2 Groups IIC, IIB, IIA	ATEX II 3 G Ex nA IIC Gc, C-UL Recognized Component, CE Marked, TUV Rheinland Certified, UL Recognized Component	0000000	00000

Wet-Location Equipment-Cooling Fans

Able to withstand dust and water splashes, these fans are IP rated. Also known as muffin fans, they keep heat-sensitive equipment such as electronic components cool. All have ball bearings to lower the heat that is generated from the fans for a longer service life. They also have UL recognized components.

IP55-rated fans can also stand up to washdowns from low-pressure jets of water.

Install fans with wire leads directly to your power source—there’s no need for additional connectors.

Use fans with quick-disconnect terminals to quickly connect and disconnect wiring from the terminal. Optional quick-disconnect power cords allow you to add a NEMA plug to these fans, so you can connect them to a standard outlet.

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

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Overall
Ht.	Wd.	Dp.	Airflow, cfm	Temp. Range, °F	Volume, dBA	Current, A	Frame Material	Blade Material	Bearing Type	Mounting Fasteners Included	Mounting Hole Dia.	Environmental Rating		Each
100-120V AC, Single Phase, 50Hz/60Hz—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	1.52" (38.5 mm)	90 105	-20° to 175°	48	0.18 0.08	Aluminum	Steel	Ball	No	0.177" (4.5 mm)	IP55	0000000	000000
100-120V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
4.72" (120 mm)	4.72" (120 mm)	1.52" (38.5 mm)	90 105	-20° to 175°	48	0.18 0.08	Aluminum	Steel	Ball	No	0.177" (4.5 mm)	IP55	0000000	00000
200-240V AC, Single Phase, 50Hz/60Hz—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	1.52" (38.5 mm)	90 105	-20° to 175°	48	0.09 0.04	Aluminum	Steel	Ball	No	0.177" (4.5 mm)	IP55	0000000	00000
200-240V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
4.72" (120 mm)	4.72" (120 mm)	1.52" (38.5 mm)	90 105	-20° to 175°	48	0.09 0.04	Aluminum	Steel	Ball	No	0.177" (4.5 mm)	IP55	0000000	00000

DC Wet-Location Equipment-Cooling Fans

Operate these fans with a DC power source. Also known as muffin fans, they keep heat-sensitive equipment such as electronic components cool. All have ball bearings to lower the heat that is generated from the fans for a longer service life.

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

Overall
Ht.	Wd.	Dp.	Airflow, cfm	Temp. Range, °F	Volume, dBA	Current, A	Frame Material	Blade Material	Bearing Type	Mounting Fasteners Included	Mounting Hole Dia.	Environmental Rating		Each
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12V DC—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	85.5	15° to 155°	36	0.81	Plastic	Plastic	Ball	No	0.169" (4.3 mm)	IP57	00000000	000000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	119	15° to 155°	41	0.60	Plastic	Plastic	Ball	No	0.18" (4.6 mm)	IP58	0000000	00000
24V DC—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	85.5	15° to 155°	36	0.23	Plastic	Plastic	Ball	No	0.169" (4.3 mm)	IP57	00000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	110	15° to 155°	44	0.24	Plastic	Plastic	Ball	No	0.18" (4.6 mm)	IP58	0000000	00000
48V DC—Wire Leads
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	178.4	15° to 155°	54	0.70	Plastic	Plastic	Ball	No	0.169" (4.3 mm)	IP58	00000000	00000

High-Pressure Washdown DC Equipment-Cooling Fans

Keep electronics from overheating in places that must be sanitized often. These DC-powered fans are rated IP69K, meaning you won’t damage them with harsh jets of water and they block out dust. For a long life, all have ball bearings that reduce friction and heat as they operate. Also called muffin fans.

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

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Overall
Height, mm	Width, mm	Depth, mm	Airflow, cfm	Volume, dBA	Current, A	Mounting Fasteners Included	Mounting Hole Diameter, mm	Environmental Rating	Specifications Met		Each
Plastic Frame with Plastic Blades
12V DC—Wire Leads
120	120	25	120	42	0.45	No	4.4	IP69K	CE Marked, UL Recognized Component	0000000	000000
120	120	38	124	44.1	0.50	No	4.3	IP69K	CE Marked, UL Recognized Component	0000000	00000
24V DC—Wire Leads
120	120	25	120	42	0.32	No	4.4	IP69K	CE Marked, UL Recognized Component	0000000	00000
120	120	38	124	44.1	0.23	No	4.3	IP69K	CE Marked, UL Recognized Component	0000000	00000
48V DC—Wire Leads
120	120	25	120	42	0.09	No	4.4	IP69K	CE Marked, UL Recognized Component	0000000	00000
120	120	38	124	44.1	0.10	No	4.3	IP69K	CE Marked, UL Recognized Component	0000000	00000

Submersible DC Equipment-Cooling Fans

Keep electronics cool in wet areas. These fans withstand weather, washdowns, and occasional time spent underwater. A ball bearing keeps them running smoothly and quietly, reducing friction to increase their lifespan.

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

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Overall
Height	Width	Depth	Airflow, cfm	Temp. Range, °F	Volume, dBA	Current, A	Mounting Fasteners Included	Mounting Hole Diameter	Environmental Rating	Specifications Met		Each
Plastic Frame with Plastic Blades
12V DC, Wire Leads
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	80	15° to 155°	41	0.65	No	0.17" (4.4 mm)	IP68	UL Recognized Component CE Marked TUV Rheinland Certified	0000000	000000
24V DC, Wire Leads
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	80	15° to 155°	41	0.14	No	0.17" (4.4 mm)	IP68	UL Recognized Component CE Marked TUV Rheinland Certified	0000000	00000
48V DC, Wire Leads
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	271	15° to 155°	68	1.00	No	0.18" (4.5 mm)	IP68	UL Recognized Component CE Marked TUV Rheinland Certified	0000000	00000

Equipment-Cooling Fan Kits

Kits include a fan, guard, and power cord. They keep heat-sensitive equipment such as electronic components cool.

Kits with a filter remove dust and other particles from the air. Replacement filters are sold separately.

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Square with Steel or Stainless Steel Fan Guard

Square with Steel Fan Guard and Filter

Square with Plastic Fan Guard and Filter

Overall
Ht.	Wd.	Dp.	Airflow, cfm	Temp. Range, °F	Volume, dBA	Current, A	Frame Material	Mounting Fasteners Included	Mounting Hole Dia.		Each
With Steel Fan Guard
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	64	0° to 155°	35	0.14	Aluminum	No	0.17" (4.3 mm)	0000000	000000
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	78	0° to 155°	38	0.14	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.18	Aluminum	No	0.17" (4.3 mm)	000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	0.20	Aluminum	No	0.17" (4.3 mm)	000000	00000
230V AC, Single Phase, 50Hz/60Hz—Three Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.15	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	0.10	Aluminum	No	0.17" (4.3 mm)	0000000	00000
With Steel Fan Guard and On/Off Switch
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.18	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	0.20	Aluminum	No	0.17" (4.3 mm)	0000000	00000
With Steel Fan Guard, Filter, and On/Off Switch
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.18	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	0.20	Aluminum	No	0.17" (4.3 mm)	0000000	00000
With 304 Stainless Steel Fan Guard
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.18	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	0.20	Aluminum	No	0.17" (4.3 mm)	0000000	00000
230V AC, Single Phase, 50Hz/60Hz—Three Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.10	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	103	0° to 155°	39	0.10	Aluminum	No	0.17" (4.3 mm)	0000000	00000
With Plastic Fan Guard and Filter
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	64	0° to 155°	35	0.14	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	78	0° to 155°	38	0.14	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.18	Aluminum	No	0.17" (4.3 mm)	000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	0.20	Aluminum	No	0.17" (4.3 mm)	000000	00000
230V AC, Single Phase, 50Hz/60Hz—Three Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	0.15	Aluminum	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	0.10	Aluminum	No	0.17" (4.3 mm)	0000000	00000

Equipment-Cooling Fan Kits with Thermostat

Thermostat allows the fans in these kits to switch on only when needed. All kits include a fan, guard, and power cord. They keep heat-sensitive equipment such as electronic components cool.

Kits with a filter remove dust and other particles from the air. Replacement filters are sold separately.

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Square Fan with Steel Fan Guard

Square Fan with Plastic Fan Guard and Filter

Two Square Fans with Two Plastic Fan Guards and Remote Thermal Probe

Four Square Fans with Four Plastic Fan Guards and Remote Thermal Probe

Overall
Ht.	Wd.	Dp.	Airflow, cfm	Temp. Range, °F	Volume, dBA	No. of Speeds	Current, A	Frame Material	Thermostat Temp. Range, °F	Mounting Fasteners Included	Mounting Hole Dia.		Each
With Fan and Steel Fan Guard
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	1	0.18	Aluminum	75° to 86°	No	0.17" (4.3 mm)	0000000	000000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	1	0.23	Aluminum	75° to 86°	No	0.17" (4.3 mm)	0000000	00000
With Fan, Plastic Fan Guard, and Filter
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	80	0° to 155°	34	1	0.18	Aluminum	75° to 86°	No	0.17" (4.3 mm)	0000000	00000
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	115	0° to 155°	39	1	0.23	Aluminum	75° to 86°	No	0.17" (4.3 mm)	0000000	00000
With Two Fans, Two Plastic Fan Guards, and Remote Thermal Probe
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	40	15° to 140°	21	2	0.02	Plastic	83° to 87°	No	0.17" (4.3 mm)	0000000	000000
With Four Fans, Four Plastic Fan Guards, and Remote Thermal Probe
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	0.98" (25 mm)	80	15° to 140°	23	2	0.04	Plastic	83° to 87°	No	0.17" (4.3 mm)	0000000	000000

Wet-Location Equipment-Cooling Fan Kits

Cool heat-sensitive electronics without having to hardwire your fan—these kits include the fan, guard, and power cord. They’re IP-rated to withstand dust, light rinses, and other wet environments. The guard prevents accidental contact with fan blades, which helps avoid injury. All have ball bearings to reduce the heat that’s generated from the fans for a longer service life.

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

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Square with Steel or 304 Stainless Steel Fan Guard

Overall
Height, mm	Width, mm	Depth, mm	Airflow, cfm	Temperature Range, °F	Volume, dBA	Current, A	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia., mm	Environmental Rating	Specifications Met		Each
With 304 Stainless Steel Fan Guard
115V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
120	120	25	75	0° to 155°	38	0.12	Aluminum	Plastic	No	4.3	IP55	UL Listed	0000000	000000
120	120	38	106	0° to 155°	41	0.12	Aluminum	Plastic	No	4.3	IP55	UL Listed	0000000	00000

Hazardous Location Equipment-Cooling Fan Kits

Cool electronics and other sensitive equipment in potentially unsafe areas. These fans are non-sparking, so they’re safe for use around gas and explosive dust. They also withstand washdowns, occasional submersion in water, and wet weather. They’re not for use in mines. Ball bearings reduce the heat that’s generated to prolong fan lifespan.

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

Square

Square with Stainless Steel Fan Guard

Overall
Height	Width	Depth	Airflow, cfm	Temp. Range, °F	Volume, dBA	Current, A	Frame Material	Mounting Fasteners Included	Mounting Hole Diameter	Environmental Rating	Specifications Met		Each
With 304 Stainless Steel Fan Guard
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
4.72" (120 mm)	4.72" (120 mm)	1.5" (38 mm)	106	0° to 155°	43	0.08	Aluminum	No	0.17" (4.3 mm)	IEC Zone 2 Groups IIC, IIB, IIA, IP68	ATEX II 3 G Ex nA IIC Gc, C-UL Listed, UL Listed, UL Recognized Component	0000000	0000000