Alphacool ES 80mm 800-6,000rpm Fan ( 80x80x25mm ) - Two Ball Bearing - PWM - JE8025B12V (24829)

The Alphacool ES 80mm 800-6000rpm Fan (80x80x25mm) - Two Ball Bearing - PWM - JE8025B12V is an 80 x 80 x 25 mm fan for servers and workstations with a 4-Pin PWM connection. Its speed range is 800-6000rpm. It has no 2 or 3-pin DC power connection.

Properties

• Size (L x W x H): 80 x 80 x 25 mm
• Speed: 800-6000rpm
• Connection: 4-Pin PWM, 30 cm cable
• Bearing: Two ball bearing
• Max. air flow: 130.83 m³/h
• Noise: 50 dB(A)

PWM control

Instead of the usual 2 cables or the 3-pin connector, Alphacool now also uses a 4-pin PWM connector for enterprise fans, one supported by more and more server mainboards. Via that connector the fan always receives full voltage and is controlled by pulse width modulation, which allows control over a much wider speed range. Alphacool says a considerable amount of energy can be saved while controlling the fans in server racks. At 0% PWM control the fans can even be stopped completely.

The fan also offers a soft start, which Alphacool says increases its service life and reduces the risk of injury. No parts of the body should get between the fan blades at speeds of several thousand revolutions per minute.

Double ball bearings

Unlike a classic plain bearing, ES fans have a double ball bearing for increased service life under full load. Alphacool notes that double ball bearings are generally regarded as the highest quality bearings in terms of durability and quality. It adds that this also ensures a high level of running smoothness in terms of minimal vibration.

Protection circuits

Multiple protection circuits are built into all Alphacool Enterprise fans. When the fans are blocked, they automatically try to restart at reduced speed after a few seconds. Thanks to the soft start, including its emergency start function, a blocked fan goes up to 72 hours without suffering damage. In case of wrong polarity when connecting the fan, Alphacool states that a burn-out of the electronics for at least 5 seconds is impossible. So if the fan is connected incorrectly for a short time, this is no problem.

Where it goes

Alphacool says its ES fans offer an extremely high air flow and an extremely high static pressure, and are therefore ideal for use on radiators or as particularly powerful case fans. The fan needs a 4-pin PWM header on the mainboard or a controller.

Technical data

• Dimensions (L x W x H): 80 x 80 x 25 mm
• Speed: 800-6000rpm
• Bearing: Two ball bearing
• Connection: 4-Pin PWM
• Cable length: 30 cm
• Operation voltage: 7 - 14V
• Start voltage min.: 7V
• Power consumption: 0.66 - 0.85A (7.92 - 10.2W)
• Static pressure: 14.29 mm H2O
• Max. air flow: 130.83 m³/h
• Noise: 50 dB(A)
• MTBF: 70,000 h
• Color: black

Security features

• Automatic Shutdown: Automatic switch-off if the fan is blocked
• Automatic restarting: Restart attempt after 2-6 seconds if blocked
• Damage due to blocking: It is guaranteed that the fan will not be damaged if it is blocked for up to 72 hours

Notes

• ATTENTION: Unfortunately, the speed specifications on the fan stickers are currently incorrect. The specification 800-4000 rpm printed on the fans is not correct. It is 800-6000rpm.

In the box

• 1x Alphacool ES 80mm Fan