Specifications

Dimensions

Finger Guard (Included)

Finger Guard (Included)

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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

Specifications of Stop Sensor

Sensor signal outputs when cooling fans stop rotating while the power is on.

Sensor Specifications

Sensor in Operation	When locked
Output Mode	Open-collector output
Output Condition	During Rotation: L level (Internal transistor ON) When Locked: H level (Internal transistor OFF)
Maximum Rating	Maximum Applied Voltage: 27.6 VDC or less Maximum Inflow Current: 5 mA or less
Delay Function	None (An external delay circuit is required if sensor detection is to be avoided when cooling fans start. The delay time should be 1 second min.)

Sensor output circuit connection example

System Configuration

Cables and Accessories

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• Other Specifications
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