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BRT-784 High Power Rotary Speed Control Switch

date:2017-08-15 10:34

BRT-784 is a high power speed controller which has a built-in micro controller unit. It uses rotary knob for turning on or turning off the motor and for adjusting the motor’s speed. It is designed to be used as an in-line device.

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  • Load up to 2000W;
    Good for controlling multiple motor loads;
    Starts at highest speed;
    Adjustable minimum speed setting. The minimum speed can be fine-tuned by the user to suit for all kind of motors;
    Sturdy me
    tal case; and
    High quality builds.

  • Fig. 1 and Fig. 2 show the top view and the side view of BRT-784 speed control switch respectively. It has a rotary knob on its top and input and output wires on one end.
  • BRT-784 speed control switch is used as an in-line device. It can be mounted on a flat surface by using 4 mounting holes on the bottom. As shown in Fig. 3 the device has 3 input wires and 3 output wires coming out of two outlets respectively. All the wires are color coded and labelled for easy identification.

    Installation must be done when power is turned off. Please follow the wiring diagram carefully.

    Fig.3 BRT-784 Wiring Diagram


  • Once it is installed BRT-784 speed control switch is easy to operate.

    1. Turn on or turn off the fan and adjust fan speed: Rotating the knob clockwise will turn on the fan and rotating the knob clockwise further more will reduce the fan speed. When the fan is on rotating the knob counter-clockwise will increase the fan speed and rotating the knob counter-clockwise further more will turn off the fan; and

    2. Set the minimum fan speed limit: As shown in Fig. 4 the minimum fan speed can be fine-tuned by tuning a screw on the side of BRT-784 during initial installation. Turn on the fan and rotate the speed control knob to run the fan at the lowest speed. Then turn the screw using a screw driver to obtain a minimum fan speed as desired.

    Fig.4 Fan Speed Adjustment

    Note: Adjusting the minimum speed is necessary for some motors or the motor may not move due to too low a driving voltage.

  • BRT-784 keypad speed control switch can be used for all kinds of appliances driven by motors especially for multiple high power loads such as cooling fans ventilation fans blowers etc. It has wide applications at various locations such as homes schools laboratories hospitals bars restaurants etc.
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