DC Axial Flow Fans With Low-Speed Alarm MDA Series
MDA925-12H
Fan
This product is currently no longer available for sale.
| Product Classification | Product Name | List Price | Shipping Date |
|---|---|---|---|
| Fan | MDA925-12H | 36.00 € | Discontinued Product (31.3.2026 discontinued) |
Included
- Fan, Extension Cable, Operating Manual
Specifications
Characteristics
Characteristics Diagram
Dimensions
Dimensions (Body)
Extension Cable
Panel Cut-Out
Data Download
Other Specifications
General Specifications
| Item | Specifications | |
|---|---|---|
| Insulation Resistance | 10 MΩ or more when a 250 VDC megger is applied between the windings and the case after continuous operation under normal ambient temperature and humidity. However, the measurement value for MDS625, MDS825, MDS925, MDS1238, MDS1451,MDS1751, MDA1238, MDA1451, MDA1751, MDE625,MDE825, MDE925, MDE1238, MDE1451, and MDE1751 using a 500 VDC megger are 10 MΩ min. (Excluding MDS1751-24 (H)) |
|
| Dielectric Strength | No abnormality is observed even with an application of 500 VAC at 50 Hz between the windings and the case for 1 minute after continuous operation, at normal ambient temperature and humidity. |
|
| Temperature Rise | After continuous operation at normal ambient temperature and humidity, when temperature becomes constant, the measurement value on the outer case using the thermometer method is 10 °C max. However, the temperature for MDA1451 is 15°C max., and the temperature for MDS1751, MDA1751 is 5°C max. (Excluding MDS1751H, MDS1751FH) For MDS625, MDS825, MDS925, MDS1238, MDS1751H, MDS1751FH and MDA1238, the measured winding temperature rise is 40°C max. |
|
| Operating Voltage Range | ±15 % of rated voltage MDS410, MDS510, MDS625, MDS825, MDA1225: ±10 % (for each voltage) |
|
| Thermal Class | UL/CSA Standards: 105 (A), EN Standards: 120 (E) | |
| Burning Protection | Built-in burnout prevention circuit | |
| Operating Ambient Temperature | -10~+60 °C (-10~+70 °C for MDA1238) | |
| Operating Ambient Humidity | 85 % max. (Non-condensing) | |
| Color | Frame |
Black:
MDS410, MDS510, MDS625, MD625, MDS825, MD825, MDS925, MD925, MDS1238, MDA625, MDA825, MDA925, MDA1238
Dark Gray:
MDE1225, MDE1451
Unpainted (Aluminum):
MDS1225, MD1225, MDS1451, MDS1751, MDA1225, MDA1451, MDA1751, MDE625, MDE825, MDE925, MDE1238, MDE1751
|
| Blade | Black | |
| Materials | Frame |
Aluminum Die Cast:
MDS1225, MD1225, MDS1451, MDS1751, MDA1225, MDA1451, MDA1751, MDE625, MDE825, MDE925, MDE1225, MDE1238, MDE1451, MDE1751
Polycarbonate (Flammability Classification: V-0):
MDS410, MDS510, MD625, MD825, MD925, MDA625, MDA825, MDA925
ABS/PBT Alloy (Flammability Classification: V-0)
MDS625, MDS825, MDS925, MDS1238, MDA1238
|
| Blade |
Polycarbonate (Flammability Classification: V-0):
MD625, MD825, MD925, MDS1225, MD1225, MDS1451, MDS1751 (Excluding MDS1751H and MDS1751FH), MDA625, MDA825, MDA925, MDA1225, MDA1451, MDE1225, MDE1451
Polyphenylene oxide (Flammability Classification: V-0)
MDS925
Polyphenylene oxide (Flammability classification: V-1):
MDS625, MDS825, MDS1238, MDS1751H, MDS1751FH, MDA1238, MDE625, MDE825, MDE925, MDE1238, MDE1751
PBT (Flammability Classification: V-0):
MDS410, MDS510
|
|
Low Speed Alarm Specifications
An alarm is output when the cooling fan speed drops to a specific level. The output method is electronic alarm type
Alarm Specifications
| Alarm Activation Speed | MDA625, MDA825: 2300±400 r/min MDA925: 1900±400 r/min |
|---|---|
| Output Mode | Open-collector output |
| Output Condition | Normal Operation: L level (Internal transistor ON) During Alarm Output: H level (Internal transistor OFF) |
| Maximum Rating | Maximum Applied Voltage: 30 VDC or less Maximum Inflow Current: 15 mA or less |
| Delay Function | None (An external delay circuit is required if alarm detection is to be avoided when cooling fans start. The delay time should be 10 seconds min.) |
Alarm Output Circuit Connection Example
Standards
Regulations and Standards Materials
Documents about compliance with regulations and standards can be downloaded from the "Data Download" tab on the product details page.
(The types of files available for download vary by product.)
Explanations of the Global Laws, Regulations and Standards can be found here.
Information about our compliance with regulations and standards for each of our product series can be found here.
Hazardous Substances
The product does not contain any substances (10 substances) exceeding the regulation values of the RoHS Directive (2011/65/EU, 2015/863/EU).
For more information about compliance with regulations on chemical substances in Oriental Motor's Products, click here.
System Configuration
Cables and Accessories
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