4028 sever cabinet cooling fan 40X40X28MM 5v 12v 24v dc cooler mini fan

Product Overview

Description

4028 sever cabinet cooling fan 40X40X28MM 5v 12v 24v dc cooler mini fan

General Specifications and use of environment

Frame	Thermal Plastic,Environmental Protection & Fireproof
Impeller	Thermal Plastic,Environmental Protection & Fireproof
Bearing type	Sleeve bearing or double ball bearing
Lead wires	Red +,Black -, default 200mm length,can be customized lenth
Motor Protection	Impedance Protected;Reverse Polarity Protected;Automatic Restart
Operating Voltage	4.5~5.5V,10.2-13.8V;20.4-27.6V (That's the suggest working voltage,not startup voltage)
Operating Temperature/Humidity	-10℃~70℃,15~85%RH
Storage Temperature/Humidity	-40℃~80℃,15~85%RH

Fan performance curves

Measurement

Specification

Dimension	Model	Rated voltage(V)	Current Amp(A)	Speed(RPM)	Air flow(CFM)	Static Pressure(mmH2O)	Noise level(dBA)	Weight(g)	FG	RD	PWM	Ajto Restart
40X40X28MM	4028L	5	0.10	6000	6.68	4.22	30.6	32	√	√	√	√
	4028M	5	0.25	9000	10.97	10.28	37.1	32	√	√	√	√
	4028L	12	0.04	6000	6.68	4.22	30.6	32	√	√	√	√
	4028M	12	0.12	9000	10.97	10.28	37.1	32	√	√	√	√
	4028H	12	0.30	12000	15.13	18.28	45.1	32	√		√	√
	4028L	24	0.03	6000	6.68	4.22	30.6	32	√	√		√
	4028M	24	0.06	9000	10.97	10.28	37.1	32	√	√		√
	4028H	24	0.16	12000	15.13	18.28	45.1	32	√	√		√

Spare parts-connector

Spare parts-fan guard

Bearing type contrast

	Sleeve bearing	Double ball bearing
Support function	FG,RD,Auto Restart function(not normal,optional)	FG,RD,PWM,Auto Restart(Not normal,optional)
Brand	NSK brand imported from Japan	Made in China
Advantage	Stable performance,low current amp,low noise,50000-80000hrs lifespan	Low cost,20000-30000 hrs lifespan,suit for small household appliance
Warranty	30000 hours	10000 hours
Material	Stainless	Copper sleeve
Price	Higher	lowerCertifications

1. What’s the difference between the sleeve and ball bearing fan?

The ball bearing brand was NSK bearing imported from Japan.

The warranty for ball bearing fan is 30,000 hours but sleeve bearing just 10,000 hours.

Ball bearing has 5-8 years lifetime,sleeve bearing has 2-3 years lifetime.

Ball bearing fan noise level won’t change for a long time term,but sleeve bearing fan noise level will grown as time goes on.

Sleeve bearing is cheaper than ball bearing fans.

 

2. What kind of function can we choose for fan?

Optional function :Auto-restart ,Speed detection,Stppage Alarm,Waterproof(IP55-IP68 optional), PWM function ,Temperature control etc.

 

3. How long can your wire length be ?

The wire length and terminal could be customized as your request. We just need the picture of connector and rank of wires for confirm.(Default wire length is 200mm)