Oriental Motor

ORIENTAL MOTOR U.S.A. Corp.
570 Alaska Avenue
Torrance, CA 90503
1-800-GO-VEXTA (468-3982)

Print Back
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 a service life of the fan or by the ingress of a foreign objects.
  • Alarm Type
  • Fan kit features axial flow fan, finger guard, connection wire and mounting screws in a single package.
Unit of Measure

Specifications

Lead Time1 - Contact you local saless office for more information

Fan Type

 - Axial Flow

Frame Size

 - 3.15 in

Thickness

 - 1 in.

Power Supply

 - 12 VDC

Current

 - 0.25

Function

 - Low Speed Alarm - Electronic

Connection Type

 - Connector

Speed (r/min)

 - 3800

Max. Air Flow

 - 35.3 CFM  

Max. Static Pressure

 - 0.196 inH2O  

Noise Level

 - 35 db (A)

Components

 - MDA825-12H (Fan Unit)
FG8D (Finger Guard)
Connection Cable
M4 x 40mm (Mounting Screws)

Fan Kit

 - Fan, Finger Guard, Connection Cable, Mounting Screws

RoHS Compliant

 - These products do not contain substances that exceed the regulation values in the RoHS Directive.

Safety Standards

 - UL CE

CE Marking

 - EMC Directives

Insulation Resistance

 - 10 MΩ or more when 250 VDC is applied between the windings and the frame after continuous operation under normal ambient temperature and humidity.

Dielectric Strength

 - Sufficient to withstand 500V at 50Hz applied between the windings and the frame for 1 minute after continuous operation under normal ambient temperature and humidity.

Temperature Rise

 - 18ºF (10ºC) or less measured by the thermometer method after the temperature of the case has stabilized after continuous operation under normal ambient temperature and humidity.

Thermal Class

 - UL/CSA Standards: 105 (A), EN Standards: 120 (E)

Overheat Protection

 - Built-in Overheat Protection Circuit

Ambient Temperature Range

 - 14ºF ~ 140ºF (-10ºC ~ 60ºC)

Ambient Humidity

 - 85% or less (noncondensing)

Alarm Specifications

Alarm Type

 - Electronic

Alarm Activation Speed

 - 2300 ± 400 r/min

Output Mode

 - Open-collector output

Output Condition

 - Normal operation: L level (Internal transistor ON)
Alarm output: H level (Internal transistor OFF)

Maximum Rating

 - Maximum Applied Voltage: 30 VDC max.
Maximum Inflow Current: 15 mA max.

Delay Function

 - None (External delay circuit is required to prevent alarm detection when starting the fan. The delay time should be 10 sec. min.)

Circuit Connection

 -
Circuit Connection

Dimensions


 

 

Airflow


 

Connection


 

System


 

  • 1 Quoted Ship Date for orders placed before 12:00 pm PST. Quantities may affect Shipping Date.