Low Speed Alarm DC Input Axial Fans - MDA Series

Low Speed Alarm DC Input Axial Fans - MDA Series

Low Speed Alarm DC Input Axial Fans - MDA Series

The MDA Series features a built-in alarm circuit that the host controller can recognize if the fan speed drops. This is important for noticing quick drops in the cooling capacity of the fan caused by the end of the service life of the fan or by ingress of a foreign object.

The MDA Series is available in frame sizes from 2.44 in. (62 mm) up to 5.51 in. (140 mm). Lead wire and connector types are available.

  • Low Speed Alarm Type
  • 12 VDC, 24 VDC or 48 VDC
  • Connector or Lead Wire Types
  • Fan Kits available

Product Lineup

Frame Size

Power Supply

Options

Max Air Flow

Max Static Pressure

62 mm axial fan

2.44 in.
(62 mm)

12 VDC

Low Speed Alarm

Fan Kit

17.7 CFM

0.5 m3/min

0.196 inH20

49 Pa

24 VDC

80 mm axial fan

3.15 in. (80 mm)

12 VDC

Low Speed Alarm

Fan Kit

35.3 CFM

1 m3/min

0.196 inH20

49 Pa

24 VDC

92 mm axial fan

3.62 in. (92 mm)

12 VDC

Low Speed Alarm

Fan Kit

45.9 CFM

1.3 m3/min

0.196 inH20

49 Pa

24 VDC

119 mm axial fan

4.69 / 4.72 in.
(119 / 120 mm)

12 VDC

Low Speed Alarm

Fan Kit

95.3 ~ 137 CFM

2.7 ~ 3.88 m3/min

0.281 ~ 0.542 inH20

70 ~ 135 Pa

24 VDC

140 mm axial fan

5.51 in. (140 mm)

24 VDC

Low Speed Alarm

Fan Kit

205 CFM

5.8 m3/min

0.521 inH20

130 Pa

48 VDC

172 mm axial fan

ø6.77 in. (ø172 mm)

24 VDC

Oblong Type

Low Speed Alarm

Fan Kit

212 CFM

6 m3/min

0.55 inH20

137 Pa


 

Low Speed Alarm DC Axial Fans

Low Speed Alarm Types

An alarm is output when the fan speed drops due to the service life of the fan or ingress of foreign objects. This makes it possible to order and replace the fan with a new one before it stops.

If multiple cooling fans are being used, it is possible to only replace the cooling fan with decreased cooling capacity. Even if the cooling capacity of the fan decreases, the effect on the equipment can be minimized.

Low Speed Alarm

Easy-to-Connect Fan Types Available

We have a cable with a connector for easy connection in addition to the standard lead wire type.

The connector type fan can reduce wiring.

Maintenance is also very easy because the fans can be replaced just by disconnecting the connector.

East Connect

Use the MDA Series in the Following Scenarios:

When a Spare Fan is Installed

An alarm is output when the fan speed drops. As a result no spare fan needs to be installed.

Spare Fan

When Multiple Fans are Installed

Since multiple fans are installed, you cannot identify which fan is failing when the cooling capacity decreases. With the MDA you can identify which fan is failing because an alarm is output. As a result, only the fan with the low speed can be replaced.

Host Controller

Fan Kits Available

Fan Kit


Thermostat Available for Energy Saving

Thermostats (sold separately) make it possible for fans to operate only when cooling is necessary. Thermostats provide energy-saving by automatically stopping fans for example, at night, when the amount of heat generation declines following the load rate's decline in equipment, or in winter, when the ambient temperature drops and forced cooling is not necessary.



Thermostat

Thermostat

Thermostats automatically perform ON/OFF fan control in accordance with the temperature fluctuation inside the equipment. It helps improve the equipment's "environmental" performance relative to energy savings, noise reduction, etc.

Type

Item

Fahrenheit (°F)

AM2-WA1

Centigrade (°C)

AM2-XA1

 

Finger Guards

Finger Guards

Finger guards prevent fingers or foreign objects from entering the fan. Finger guards are mounted to the fan frame using bolts.

Fan Model

Finger Guard

MDA625

FG6D

MDA825

FG8D

MDA925

FG9D

MDA1225
MDA1238

FG12D

MDA1451

FG14D

MDA1751

FG17D

 

Filters

When using a fan to cool machinery, dust may accumulate inside the machinery after long periods of operation. Depending on the parts involved, this could cause a malfunction. These filters prevent dust from entering the device, keeping the air inside the machinery dust free.

Fan Model

Filter

MDA625

FL6

MDA825

FL8

MDA925

FL9

MDA1225
MDA1238

FL12

MDA1451

FL14

 

Screen

Screen

Fans are used to cool or ventilate electronic devices that may generate electromagnetic waves. These waves can escape from the fan cooling holes, causing interference to computers and measuring instruments. The screens allow the passage of air but block electromagnetic waves.

The screen is a durable magnetic shield using a stainless mesh fixed to an aluminum frame. Screens are easily attached to the fan using screws.

Fan Model

Screen

MDA625

FS6S

MDA825

FS8S

MDA925

FS9S

MDE1225
MDE1238

FS12S

System Configuration

System Configuration



CAD / Manual Search

To locate product CAD and Operator Manuals please search using the product Item Number.

Downloads


Videos

AC Motor and Cooling Fan Application

Installing a Fan Kit

Thermostat

 

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