48V DC Fans | McMaster-Carr

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Less than 10,000 ft³/min

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High-Pressure Washdown

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-14° F to 0° F

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28 Products

About Air Conditioner Cooling Capacity

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.

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 ball bearings generate less heat as they run, so they have a longer life than fans with sleeve bearings.

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

Fans with quick-disconnect (QD) terminals are compatible with quick-disconnect power cords.

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

Square

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
48V DC—Wire Leads
2.36" (60 mm)	2.36" (60 mm)	0.98" (25 mm)	33	Ball	0° to 155°	43	0.09	Plastic	Plastic	No	0.15" (3.7 mm)	UL Recognized Component, CSA Certified, C-UL Recognized Component	00000000	000000
3.15" (80 mm)	3.15" (80 mm)	0.98" (25 mm)	41	Ball	0° to 155°	32	0.04	Plastic	Plastic	No	0.17" (4.3 mm)	UL Recognized Component, CSA Certified, C-UL Recognized Component	00000000	00000
3.15" (80 mm)	3.15" (80 mm)	1.5" (38 mm)	131	Ball	0° to 155°	71	0.77	Plastic	Plastic	No	0.17" (4.3 mm)	UL Recognized Component, CSA Certified, C-UL Recognized Component	00000000	000000
3.62" (92 mm)	3.62" (92 mm)	1.5" (38 mm)	86	Ball	0° to 155°	55	0.20	Plastic	Plastic	No	0.17" (4.3 mm)	UL Recognized Component, CSA Certified, C-UL Recognized Component	00000000	00000
3.62" (92 mm)	3.62" (92 mm)	1.5" (38 mm)	139	Ball	0° to 155°	69	0.61	Plastic	Plastic	No	0.17" (4.3 mm)	UL Recognized Component, CSA Certified, C-UL Recognized Component	00000000	00000
4.69" (119 mm)	4.69" (119 mm)	1.26" (32 mm)	100	Ball	0° to 165°	45	0.11	Plastic	Plastic	No	0.17" (4.3 mm)	UL Recognized Component, CSA Certified, C-UL Recognized Component	00000000	00000
5" (127 mm)	5" (127 mm)	1.5" (38 mm)	200	Ball	0° to 145°	58	0.38	Plastic	Plastic	No	0.17" (4.3 mm)	UL Recognized Component, CSA Certified, C-UL Recognized Component	00000000	00000
48V DC—Quick-Disconnect Terminals with Male Fan Plug
4.69" (119 mm)	4.69" (119 mm)	1.5" (38 mm)	94	Sleeve	15° to 165°	43	0.08	Aluminum	Plastic	No	0.15" (3.8 mm)	UL Recognized Component, CSA Certified	00000000	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
Square
48V DC—Wire Leads
2.36" (60 mm)	2.36" (60 mm)	0.98" (25 mm)	25.3	15° to 155°	32.3	0.07	Plastic	Plastic	Ball	No	0.169" (4.3 mm)	IP58	00000000	000000
2.76" (70 mm)	2.76" (70 mm)	0.98" (25 mm)	39.9	15° to 155°	37	0.09	Plastic	Plastic	Ball	No	0.169" (4.3 mm)	IP58	00000000	00000
3.15" (80 mm)	3.15" (80 mm)	0.98" (25 mm)	50	15° to 155°	40.1	0.24	Plastic	Plastic	Ball	No	0.169" (4.3 mm)	IP58	00000000	00000
3.62" (92 mm)	3.62" (92 mm)	0.98" (25 mm)	56.8	15° to 155°	38	0.17	Plastic	Plastic	Ball	No	0.169" (4.3 mm)	IP58	00000000	00000
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
5.98" (152 mm)	6.77" (172 mm)	2" (51 mm)	350	15° to 155°	66	1.45	Aluminum	Plastic	Ball	No	0.177" (4.5 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.

Square

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
48V DC—Wire Leads
60	60	25	28	30	0.07	No	4.3	IP69K	CE Marked, UL Recognized Component	0000000	000000
80	80	25	40	33	0.08	No	4.3	IP69K	CE Marked, UL Recognized Component	0000000	00000
80	80	32	77	50.1	0.16	No	4.1	IP69K	CE Marked, UL Recognized Component	0000000	00000
92	92	25	50	35	0.09	No	4.3	IP69K	CE Marked, UL Recognized Component	0000000	00000
92	92	38	100	56.2	0.25	No	4.5	IP69K	CE Marked, UL Recognized Component	0000000	00000
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

Oblong

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
Aluminum Frame with Plastic Blades
48V DC—Wire Leads
150	172	51	235	52	0.48	No	4.3	IP69K	CE Marked, UL Recognized Component	0000000	0000000
151	172	51	323	63.5	1.03	No	4.5	IP69K	CE Marked, UL Recognized Component	0000000	000000

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.

Square

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
48V DC, Wire Leads
3.62" (92 mm)	3.62" (92 mm)	1.5" (38 mm)	167	15° to 155°	65	0.60	No	0.17" (4.4 mm)	IP68	UL Recognized Component CE Marked TUV Rheinland Certified	0000000	000000
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

Thermoelectric Coolers for Enclosures

Cooler Shown with Extension Bracket Installed

Cooler

Extension Bracket

Drain Kit

Also known as Peltier coolers, these coolers use electrical current to transfer heat away from your enclosure while sealing out contaminants. They cool the enclosure to below the ambient temperature. The solid-state thermoelectric components require no maintenance and take up less space than an air conditioner or heat exchanger.

Rated IP66 and NEMA 4X, these coolers withstand weather, washdowns, and corrosive environments. They meet American and European safety standards.

Coolers without a thermostat run continuously when powered. Add a thermostat, timer, or switch to turn them on and off.

An optional extension bracket holds the cooler away from the enclosure wall for more space inside the enclosure.

Add a drain kit to remove moisture when condensation is likely, such as in humid environments and enclosures exposed to rapid temperature changes. The included hose directs water away from electrical components.

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

Coolers
				Overall			For Opening						Extension Brackets		Drain Kits
Cooling Capacity, Btu/hr.	Airflow, cfm	Wattage, W	Current, A	Height	Width	Depth	Height	Width	Environment	Mounting Fasteners Included		Each		Each		Each
Without Thermostat
48V DC—Terminal Block
850	70	250	9.3	15 3/4"	7 1/8"	6 11/16"	14 5/8"	6 1/8"	Corrosive, Outdoor, Washdown, Wet Location	Yes	0000000	000000000	0000000	0000000	0000000	0000000