280 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.

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.

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.

Square

Overall
Ht.	Wd.	Dp.	Airflow, cfm	Temp. Range, °F	Volume, dB	Current, A	Frame Material	Blade Material	Bearing Type	Mounting Fasteners Included	Mounting Hole Dia.		Each
120V AC, Single Phase, 50Hz/60Hz—Screw Terminals
11.02" (280 mm)	11.02" (280 mm)	3.15" (80 mm)	1,120	-10° to 155°	73	1.52	Aluminum	Steel	Ball	No	0.213" (5.4 mm)	0000000	0000000
230V AC, Single Phase, 50Hz/60Hz—Screw Terminals
11.02" (280 mm)	11.02" (280 mm)	3.15" (80 mm)	1,100	-10° to 140°	66	0.56	Aluminum	Steel	Ball	No	0.177" (4.5 mm)	00000000	000000
11.02" (280 mm)	11.02" (280 mm)	3.15" (80 mm)	1,110	-10° to 130°	73	0.87	Aluminum	Steel	Ball	No	0.217" (5.5 mm)	0000000	000000

Submersible Equipment-Cooling Fans

Able to withstand submersion in up to 3 meters of water, these fans cool electronics in food processing areas and outdoors. Ball bearings keep them running smoothly and quietly, reducing friction to increase their lifespan. Also known as muffin fans.

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

Oblong

Oblong

Overall
Height, mm	Width, mm	Depth, mm	Airflow, cfm	Temp. Range, °F	Volume, dB	Current, A	Mounting Fasteners Included	Mounting Hole Diameter (No. of Mounting Holes)	Environmental Rating	Specifications Met		Each
120V AC, Single Phase, 50Hz/60Hz—Wire Leads
280	280	89	1,300	-20° to 175°	73	1.83	No	4.3mm (16), 5.5mm (8)	IP68	C-UL Recognized Component, CE Marked, UL Recognized Component	0000000	0000000
230V AC, Single Phase, 50Hz/60Hz—Wire Leads
280	280	89	1,300	-20° to 175°	73	0.91	No	4.3mm (16), 5.5mm (8)	IP68	C-UL Recognized Component, CE Marked, UL Recognized Component	0000000	000000

High-Pressure Washdown Equipment-Cooling Fans

Cool down electronics in areas that require frequent and intense sanitizing. Rated IP69K, these AC-powered fans withstand harsh jets of water and block dust from reaching their motor. All have ball bearings that reduce friction and heat from operation, extending their life. Also known as muffin fans.

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

Oblong

Oblong

Overall
Height, mm	Width, mm	Depth, mm	Airflow, cfm	Volume, dB	Current, A	Mounting Fasteners Included	Mounting Hole Diameter, mm	Environmental Rating	Specifications Met		Each
Aluminum Frame with Steel Blades
115V AC, Single Phase, 60Hz—Wire Leads
280	280	89	1,300	73	1.75	No	4.3, 5.5	IP69K	CE Marked, UL Recognized Component	0000000	0000000
230V AC, Single Phase, 60Hz—Wire Leads
280	280	89	1,300	73	0.91	No	4.3, 5.5	IP69K	CE Marked, UL Recognized Component	0000000	000000