5.91" 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.

Equipment-Cooling Fans

Also known as muffin fans, these keep heat-sensitive equipment such as electronic components cool. All have UL recognized components and are CSA certified. Fans with quick-disconnect (QD) terminals are compatible with quick-disconnect (QD) power cords.

Ball bearings reduce heat generated during operation, which extends the life of the fan.

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

Oblong

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.		Each
120V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
5.91" (150 mm)	6.77" (172 mm)	1.5" (38.1 mm)	175	0° to 175°	54	0.14	Aluminum	Steel	Ball	No	0.169" (4.3 mm)	0000000	0000000
5.91" (150 mm)	6.77" (172 mm)	1.5" (38.1 mm)	190	-10° to 130°	57	0.21	Aluminum	Steel	Ball	No	0.169" (4.3 mm)	0000000	000000
230V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
5.91" (150 mm)	6.77" (172 mm)	1.5" (38.1 mm)	165	0° to 175°	54	0.07	Aluminum	Steel	Ball	No	0.169" (4.3 mm)	0000000	000000
5.91" (150 mm)	6.77" (172 mm)	1.5" (38.1 mm)	190	-10° to 130°	57	0.12	Aluminum	Steel	Ball	No	0.169" (4.3 mm)	0000000	000000

Hazardous Location Equipment-Cooling Fans

Oblong

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
Oblong
95-264V AC, Single Phase, 50Hz/60Hz—Wire Leads
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	220	-4° to 158°	57	0.27	Aluminum	Plastic	No	0.16" (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	0000000

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.

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.

Oblong

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
105-125V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
5.91" (150 mm)	6.77" (172 mm)	1.52" (38.5 mm)	228	0° to 175°	58	0.24	Aluminum	Plastic	Ball	No	0.165" (4.2 mm)	IP55	0000000	000000
160-260V AC, Single Phase, 50Hz/60Hz—Quick-Disconnect Terminals
5.91" (150 mm)	6.77" (172 mm)	1.52" (38.5 mm)	228	0° to 175°	58	0.12	Aluminum	Plastic	Ball	No	0.165" (4.2 mm)	IP55	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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Oblong with Steel or Stainless Steel Fan Guard

Oblong 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
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.46	Aluminum	No	0.17" (4.3 mm)	000000	000000
230V AC, Single Phase, 50Hz/60Hz—Three Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.30	Aluminum	No	0.17" (4.3 mm)	0000000	000000
With Steel Fan Guard and On/Off Switch
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.46	Aluminum	No	0.17" (4.3 mm)	0000000	000000
With 304 Stainless Steel Fan Guard
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.46	Aluminum	No	0.17" (4.3 mm)	0000000	000000
230V AC, Single Phase, 50Hz/60Hz—Three Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.30	Aluminum	No	0.17" (4.3 mm)	0000000	000000
With Plastic Fan Guard and Filter
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.46	Aluminum	No	0.17" (4.3 mm)	000000	00000
230V AC, Single Phase, 50Hz/60Hz—Three Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.30	Aluminum	No	0.17" (4.3 mm)	0000000	000000
With Plastic Fan Guard, Filter, and On/Off Switch
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.46	Aluminum	No	0.17" (4.3 mm)	0000000	000000

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.

Oblong

Oblong Fan with Steel Fan Guard

Oblong Fan with Plastic Fan Guard and Filter

Overall
Ht.	Wd.	Dp.	Airflow, cfm	Temp. Range, °F	Volume, dBA	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
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.46	Aluminum	75° to 86°	No	0.17" (4.3 mm)	0000000	0000000
With Fan, Plastic Fan Guard, and Filter
120V AC, Single Phase, 50Hz/60Hz—Two Prong Plug
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	240	0° to 155°	48	0.46	Aluminum	75° to 86°	No	0.17" (4.3 mm)	0000000	000000

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.

Oblong

Oblong 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
5.91" (150 mm)	6.77" (172 mm)	2.01" (51 mm)	220	0° to 155°	57	0.23	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