• Operating temperature limit is between -20 to +70 ºC. (non-condensing)
• Plastic finger guards are placed on both the intake and exhaust sides of the fan.
• No nuts or screws for use in attachment included.

• Operating temperature limit is between -20 to +70 ºC. (non-condensing)
• Plastic finger guards are placed on both the intake and exhaust sides of the fan.
• No nuts or screws for use in attachment included.

Material Guard, cover: Resin (PPE+PS) UL file no. E82268 94V-0 Filter: Polyurethane foam UL file no. E74916 (S) 94HF-1 PPI: Particles Per Inch Indicates the number of holes per inch. Note that the higher the number, the finer the grain of the sponge.

Material Guard, cover: Resin (PPE+PS) UL file no. E82268 94V-0 Filter: Polyurethane foam UL file no. E74916 (S) 94HF-1 PPI: Particles Per Inch Indicates the number of holes per inch. Note that the higher the number, the finer the grain of the sponge.

Material Guard, cover: Resin (PPE+PS) UL file no. E82268 94V-0 Filter: Polyurethane foam UL file no. E74916 (S) 94HF-1 PPI: Particles Per Inch Indicates the number of holes per inch. Note that the higher the number, the finer the grain of the sponge.

Inlet nozzle for centrifugal fan and splash proof centrifugal fan. Nozzle mounted in fan inlet side to adjust the flow of introduced air. Material: Steel sheet
For use in environments subject to water splashes, cation electroplating models are recommended.

PWM Controller

This device provides external speed control of PWM fans. By using this product, PWM fans can be fully utilized without the need for preparing new circuits, contributing to reducing the system power consumption and the fan noise.

Contributes to Reduced System Power Consumption and Noise

For PWM fan speed control, a PWM control circuit needs to be newly designed and configured. By using this product, however, PWM fans can be fully utilized without the need for preparing new circuits, contributing to reducing the system power consumption and the fan noise.

Three Simple Ways of Controlling Fan Speed

The PWM Controller integrates three control methods for fully utilizing PWM fans.

• Voltage Control
  • By enlarging the scale from a narrow 0 - 5 V analog voltage to a large 0 to 100% PWM duty, this controller offers users precise control of fan speed.
• Variable Resistor Control
  • With the Box type, users can control fan speed through the simple, intuitive action of turning a knob. Users can even control fans from a distance by adding an external variable resistor.*
• Thermistor Control
  • Connecting a thermistor enables the fan speed to change automatically according to a preset temperature (between 30 and 50°C).

* Variable resistors and thermistors are to be prepared by the user.

Can Be Common-Powered by the Fan Power Supply

The controller can be powered by the fan power supply of rated voltage 12, 24, and 48 VDC, and no separate supply is required.

Maximum of Four Fans Connectable

Up to four PWM fans can be connected and controlled.

Increases safety by preventing foreign objects from entering fans. Fans can be used with little effect on airflow and static pressure. For use in environments subject to water splashes, cation electroplating models are recommended.