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RioRand Upgraded Adjustable DC Motor Speed PWM Controller 10V 12V 24V 30V Reversing Switch 120W

4.0 out of 5 stars 327 ratings
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Purchase options and add-ons

  • PWM controller：maximum continuous output current:3A ;Overload short circuit protection current:4A ,short circuit time does not exceed 30 seconds.
  • Working Voltage:DC 10V - DC 30V;Maximum output power:120W.Potentiometer for speed control,Forward and reverse switches for forward, reverse and stop control.
  • PWM Frequency: 500 KHz;PWM Pulse Width Modulation Range: 5% -95%.
  • Applicable Motor:brushed motor.This controller uses PWM speed control tech, which has high conversion efficiency, wide speed control range, stable and reliable circuit.
  • Please note：when the controller frequency is low, motors targeting some will have a modulation sound at low speeds, but not all.
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Product details

  • Is discontinued by manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 10 x 7 x 3 cm; 60 g
  • Date First Available ‏ : ‎ June 18 2014
  • Manufacturer ‏ : ‎ RioRand
  • ASIN ‏ : ‎ B00HTZD9YI
  • Item model number ‏ : ‎ RRPDMSCSGSPC
  • Customer Reviews:
    4.0 out of 5 stars 327 ratings

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Product Description

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Wiring instructions for use

  1. Connect the power cord, ensure that the forward and reverse switch is located in the middle zero position, connect the DC power supply, ensure that the DC power supply voltage range is greater than 10V, less than 30V, ensure that the power output power to meet the motor's operating requirements. DC power supply positive and negative terminals do not reverse, otherwise the controller may be damaged.
  2. Connect the motor, the motor line can not be divided into positive and negative.
  3. Adjustment switch, positive and negative switch is used to control the direction of the motor speed, when the switch is located in the zero position, the motor stops.
  4. Potentiometer knob, adjust the potentiometer knob can change the output duty cycle of the governor, the motor speed change.

Using 0-10V external voltage control wiring instructions.

This controller supports the use of external DC voltage control speed control, use the following steps.

  1. Remove the potentiometer (you can decide to remove it from one side of the board or the potentiometer side according to your needs.
  2. Connect the 0-10V DC control signal to the center pin of the potentiometer.
  3. Connect the ground wire of 0-10V DC control signal to the right pin of the potentiometer.

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Customer reviews

4 out of 5 stars
327 global ratings

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Top reviews from Canada

  • Shylo Brown
    5.0 out of 5 stars It works and was delivered in a very timely fasion
    Reviewed in Canada on June 4, 2025
    Verified Purchase
     
    Customer image
    Shylo Brown
    5.0 out of 5 stars
    It works and was delivered in a very timely fasion

    Reviewed in Canada on June 4, 2025

    Images in this review
    Customer image
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  • Henry Solis
    5.0 out of 5 stars More upgrades
    Reviewed in Canada on May 13, 2024
    Verified Purchase
    I really like it easy to follow the wing diagrams easy to install
    Helpful
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  • michel
    1.0 out of 5 stars Mauvaise qualité
    Reviewed in Canada on April 17, 2024
    Verified Purchase
    Le contrôleur de vitesse fonctionne plutôt bien SAUF que les composantes sont de mauvaises qualité faisant en sorte qu'il y a un bruit strident au moteur lorsqu'on le fait tourner à basse vitesse.
    Je vais voir si je peux le retourner ou bien je vais en commander un autre de meilleure qualité.

    Tenez vous loin de cet article et ne l'achetez pas.
    Helpful
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  • Howard B.
    2.0 out of 5 stars Missing wire on 3 position switch.
    Reviewed in Canada on May 22, 2025
    Verified Purchase
    The switch I/0 was missing a wire.. should have 2 black wires.
    Customer image
    Howard B.
    2.0 out of 5 stars
    Missing wire on 3 position switch.

    Reviewed in Canada on May 22, 2025
    The switch I/0 was missing a wire.. should have 2 black wires.
    Images in this review
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Top reviews from other countries

  • mark l. panebianco
    5.0 out of 5 stars Works great!
    Reviewed in the United States on February 20, 2025
    Verified Purchase
    Small and versatile.
    Report
  • Tom Ford
    5.0 out of 5 stars Fantastic
    Reviewed in the United States on March 8, 2024
    Verified Purchase
    I had already used RioRand's model with the attached dial before deciding to use this unit. This unit worked just as well as the one with the fixed dial and allowed me to be a little more strategic in building my homebrew model train controller. I suppose it's been a long time since I've messed around with stuff like this, but I am truly amazed that something so inexpensive and insubstantial works so well. Has worked flawlessly for me, although, as I noted in my review for the unit with the fixed dial, the dial itself is small and feels a little inexact.
    Report
  • Pelican
    4.0 out of 5 stars Recommended but with one qualification
    Reviewed in the United States on October 23, 2023
    Verified Purchase
    Revised.

    This is a good controller, but I have edited this review to deduct one star for the noise. In all other respects it worked really well, but at lower speeds it does generate a whine that is loud enough to become annoying after awhile. Other than that, for my application of the controlling speed and direction of a 17V Buehler gearhead motor it functions smoothly.

    The board is neat, well laid out and has excellent soldering. The heat sinks on both the MC7812 voltage regulator and the 7575C NFET chip are substantial and should easily handle any heat rise which should be minimal for my application. I particularly liked that both the pot and the direction switch are mounted on wire connectors which makes panel installation simple. As seems common, this regulator has a large heat shrink shroud covering the direction switch terminals which had to be removed to fit into the panel opening. However, since the wires are individually attached to the board at a screw terminal it was simple to remove the shroud and add heat shrink to each wire. The board can be mounted in any convenient spot and the two wiring connectors have plenty of length (about 6 – 7”) to reach the panel.

    Overall, I found this to be an excellent PWM motor controller providing smooth speed and direction control, and provided that the low whine is not a problem for you as it really is not for me, then it should be a good choice.
    Report
  • xrscott
    1.0 out of 5 stars Squeals
    Reviewed in the United States on April 15, 2022
    Verified Purchase
    Tried using this to control a fan and the squeal was so annoying it was unusable. The RioRand 6V 12V 24V 28V 3A 80W 1203BB works flawlessly and is silent, get that one instead.
    Report
  • C. Hill
    5.0 out of 5 stars Perfect For My Needs - Highly Recommended
    Reviewed in the United States on March 15, 2016
    Verified Purchase
    This RioRand Upgraded Adjustable DC Motor Speed PWM Controller works well for my needs. We recently opened an indoor range and use these controllers to drive the target retrieval motors.

    The controller doesn't come with instructions, but it was fairly easy to figure out with the markings on the circuit board. The ability to reverse the motor direction and adjust the speed was the big selling points for us.

    Highly Recommended!

    CFH
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