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General Specifications

Item	Specifications
Insulation Resistance	100 MΩ or more when a 500 VDC megger is applied between the windings and the case after continuous operation under normal ambient temperature and humidity.
Dielectric Strength	No abnormality is observed even with an application of 1.5 kV 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 at maximum air flow, when temperature becomes constant, the measurement value on the outer case using the thermometer method is 30 °C max.
Operating Voltage Range	±10 % (for each voltage)
Thermal Class	UL/CSA Standards: 105 (A), EN Standards: 120 (E) Non-standards certified, Electrical Appliance and Material Safety Act: 120 (E) MRS30: UL/CSA Standards: 130 (B), EN Standards: 130 (B)
Overheat Protection	MU, MS Series, MRE10, MRE12: Impedance protected MR, MRS Series, MRE16, MRE18, MRE20, MRE25: Built-in thermal protector (Automatic return type)　 Open: 120±5 °C, Reset: 77±15 °C MRS30: Built-in thermal protector (Automatic return type)　Open: 130±5℃、Reset: 83±15℃
Operating Environment	Listed in a separate box
Storage Conditions	Listed in a separate box
Color	MU, MS Series Frame: Unpainted (Aluminum) Blade: Black MR, MRS, MRE Series Frame: Dark Gray Blade: Black
Materials	Frame: Aluminum die cast Blade: Polycarbonate (Flammability Classification: V-0)

Operating Environment, Storage Condition

Series	Operating Environment*1		Storage Conditions*1*3		Environmental Standards
	Ambient Temperature*2	Ambient Humidity	Ambient Temperature*2	Ambient Humidity
EMR Series	-25~+65 °C	85 % max. (Non-condensing)	-25~+70 °C	85 % max. (Non-condensing)	-
MU Series Moisture Proof Type	-30~+60 °C	95 % max. (Non-condensing)*5 Absolute humidity 36 g/m3 max.	-40~+70 °C	95 % max. (Non-condensing)	Compliant with ETSI Standards*4
MU Series Standard Type, MRS Series		85 % max. (Non-condensing)		85 % max. (Non-condensing)
MRE Series (MRE16, MRE18, MRE20, MRE25)
MRE Series (MRE10, MRE12)	-30~+50 °C
MRS Series □140 mm-47 mm Thick With Low-Speed Alarm	-20~+60 °C		-20~+70 °C
MRS Series Variable Speed Type	-10~+60 °C		−	−	−
MS Series
MR Series	−10~+50 °C

*1

The operating and storage environment assumes conditions of being free from condensation, freezing, and vibration other than that of the fan, and external force.

*2

Cannot be used in a temperature-controlled environment at -10 °C max., such as in a freezer.

*3

The value for storage condition applies to short periods such as the period during transport.

*4

Operating environment and storage conditions are in compliance with the following environmental standards.
ETSI EN 300 019-2-1 Class 1.3E Storage
ETSI EN 300 019-2-2 Class 2.3 Transportation
ETSI EN 300 019-2-3 Class 3.4 Stationary use

*5

Test Name	Environmental Standards	Conditions and Test Content
Heat Cycle Test	ETSI EN 300 019-2-1 ETSI EN 300 019-2-2 ETSI EN 300 019-2-3	-40~+30 °C 5 cycles Temperature Gradient: 1.0 °C/min Low Temperature (-40 °C) High Temperature (+30 °C) Exposure Time: 3 hours No abnormality after test
Low Temperature Exposure Test		-45 °C 72 hour exposure No abnormality after test

• *Environmental Standard ETSI
  ETSI, officially known as the European Telecommunications Standards Institute, is a standards organization established to produce standard specifications for telecommunications in Europe.
  The ETSI EN 300 019 Series is a standard based on IEC 60721, which defines the environmental conditions for equipment, and specifies specific definitions of environmental conditions and test conditions.

System Configuration

Related Products

Thermostat for Fan

Products	Features
AM2-XA1	Features	Automatically operates and stops fans in response to temperature changes in the equipment. This helps improve the equipment's "environmental" performance in terms of energy savings, noise reduction, etc. Setting temperature range 0~+60 °C (setting error ±5 °C) Easy to set temperature with thumbwheel dial Designed for optimal air flow circulation, enabling stable operation Compact size Width 33 mm × Height 70 mm × Depth 42.5 mm *For the number of applicable cooling fans that can be used, click here. Note Cannot be used with three-phase type fans.

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