14 best ac motor controller

An AC motor controller, also known as an AC motor drive or AC motor controller drive, is an electrical device used to control the speed, torque, and direction of an AC (alternating current) motor. These controllers are commonly employed in various industrial, commercial, and residential applications to achieve precise control over AC motors. Here's what you should know about AC motor controllers:

  1. Function: AC motor controllers are designed to regulate the electrical supply to AC motors, allowing for precise control over their operation. They can start and stop the motor, vary its speed, and change its direction of rotation.

  2. Types of Motors: AC motor controllers are compatible with various types of AC motors, including single-phase and three-phase motors.The type of motor being controlled will determine the specific features and requirements of the controller.

  3. Speed Control: One of the primary functions of AC motor controllers is speed control. They allow users to adjust the motor's speed within a wide range, making them ideal for applications where variable speed is crucial, such as conveyor systems, pumps, and fans.

  4. Torque Control: AC motor controllers can also regulate the torque output of the motor. This is important in applications like industrial machinery and robotics, where precise torque control is necessary.

  5. Direction Control: AC motor controllers can change the direction of rotation of the motor, making them suitable for applications like elevators, cranes, and conveyors where bi-directional movement is required.

  6. Energy Efficiency: AC motor controllers help improve energy efficiency by adjusting the motor's speed according to the load requirements. This can lead to significant energy savings in various applications.

  7. Protection and Safety: Many AC motor controllers come with built-in protection features such as overload protection, over-temperature protection, and short-circuit protection. These features help prevent motor damage and ensure safe operation.

  8. User Interface: AC motor controllers often include a user interface for programming and monitoring the motor's performance. This interface may be a digital display, keypad, or software-based interface.

  9. Applications: AC motor controllers are used in a wide range of applications, including manufacturing equipment, HVAC systems, water treatment plants, conveyor systems, and more.

  10. Installation and Wiring: Installing an AC motor controller typically requires knowledge of electrical wiring and motor control principles. Proper installation is essential for safe and reliable operation.

  11. Compatibility: When selecting an AC motor controller, it's crucial to ensure compatibility with the specific motor type, voltage, and current requirements of the application.

In summary, AC motor controllers are essential devices that provide precise control over AC motors, enabling variable speed, torque regulation, and direction control. They are widely used in various industries to improve energy efficiency, enhance motor performance, and ensure safe and reliable operation of AC motors in diverse applications.

Below you can find our editor's choice of the best ac motor controller on the market
  

HiLetgo 2000W PWM AC Motor Speed Control Module Dimmer Speed Regulator 50-220V Adjustable Voltage Regulator

HiLetgo

Based on 1 reviews Check latest price

Product description

Specifications:

This controller uses novel bi-directional high-power SCR. It can be very convenient adjust the current up to 25A, and solve the over current problem of the heating wire resistance is too small in the case of cooling causing good.

The output voltage is adjusted anywhere between 50V-220V for use with electrical appliances. It can use to such as electric stove, water heater tune thermal, lighting dimmer, small motor speed, electric iron thermostat, and achieve dimming, thermostats, pressure regulator effect.

100% brand new and high quality.

Input supply voltage: 110V ~ 250V AC

The output voltage:50V-250V

The maximum output power: 2000W

The maximum output current :25A The voltage regulating range:50V-250V AC



Before you attempting to wire the controller, make sure all power is disconnected.

1. Cut any one of the battle line or zero line of the lamp or electrical appliances, and connect wires refer to the “wiring diagram” (NO.7 picture)

2. Turn on the power, and adjust the potentiometer.



Package Include:

1pc * 50 - 220V 25A AC Motor Speed Controller

  • Input supply voltage: 110V ~ 220V AC
  • The output voltage:50V-220V(Output voltage < = Input supply voltage)
  • The maximum output power: 2000W; The maximum output current :25A
  • Item size: 1.85*1.38*1 inches; Net weight: 1.76 ounces
  • Operation environment temperature:-20'C-40'C;High efficiency,high torque,low heat generating

User questions & answers

Question: How do i wire this for 110? there is an in-n, in-l, out-l, out-n. i connected this on the hot leg to the in-n and out-n. fan runs but no speed change
Answer: I used mine for varying the speed of a series wound "universal" motor. A motor with brushes and commutator. It worked to vary the speed. I wired it with the two terminals closest to the heat sink to the 110 the two closest to the variable resistor to the motor.
Question: Which of the 4 screws are power/ground and in/out? They are not labeled
Answer: I believe you want to know which terminal is power and neutral. Ground is not connected to any terminal, ground would be connected to the frame of the enclosure. This is an AC device, not DC. If you look on the printed circuit side of the board you will see one wire trace goes directly from one terminal to another terminal and no place else, those are the two neutral terminals. Refer to the diagram for line (input) and load (output) terminals.
Question: Will this work in a led dimming circuit, between the ac mains and a dim able led driver
Answer: "...LED's do not work with AC current" That is not true. Yes an LED is a diode and only conducts in one direction but that doesn't mean that it won't light up if hooked to an AC source. It will act like any diode and will only conduct on one half of the AC cycle. The 2 things to be considered are: 1. What is your "dim able led driver"? Is it meant to be driven by standard AC house current? If so, you're good to go. If it's expecting DC, then it might work but will only work with one half of the AC cycle. 2. The LED may produce light that is strobing at 60 cycles since it's off half the time. Not good for lighting. Great for headaches. Bottom line get a standard light dimmer switch.
Question: Will this work to dim some 500w halogen work lights
Answer: I think the answer would be "yes" with some constraints. "Yes" in that my experience has been it overheats at half the 2000 watt rating, but 500 watts should be OK. You should read up on halogen bulbs because unlike tungsten filament bulbs, halogens need to be operated at a certain minimum temperature. You should be able to dim them down to about 70% duty cycle as long as you also operate them at 100% for substantial periods at other times. Otherwise, I think you may have some condensation of tungsten on the glass tube surface. But as far as the wattage is concerned, this device should be ok t 500 watts. If you exceed its capacity it will have thermal shut down until it cools off. You won't have a huge investment if you decide to try it -- either in the PWM device or the tungsten bulbs. Just make sure you don't go below 70% duty cycle and check the bulb surface from time to time for evidence of metal deposits (silvering) and run at 100% duty cycle for a time to remove it. Good luck.

uniquegoods 10000W High Power SCR Electronic Voltage Regulator AC 110V-230V Motor Speed Controller Dimming Thermoregulation Module with Fan

Based on 63 reviews Check latest price

Product description

Parameter:

● Operating Voltage: AC 110V-230V.

● Maximum Power: 10000W (resistive load).

● Long Term Operating Power: 7000W.

● Voltage Adjustment: Adjustable from AC 0V to near input voltage.

● Size: 4.37×3.03×1.45 in/111×77×37 mm.

● Weight: 9.87 oz/280 g.



Features:

● The trigger circuit is unique, the control voltage is accurate and there is no hysteresis, the resistive load is turned off to 0, and after starting, it will be adjusted from 10V, adjust to the supply voltage that is closest to the input.

● SCR increases dual protection varistors and RC snubber circuit.

● Upgrade fan with switch, intelligent control, good heat dissipation effect, long service life.

● High temperature fire FR4 Circuit board.

● Standard high-grade exquisite aluminum shell is safer and more practical.

● Full copper 75A super large current terminal.



Application:

● Using the new two-way super-power SCR, the resistive load can be adjusted between 0 -- input voltage for use by electrical appliances.

● Such as: Electric furnace, Water heater heating, Lighting dimming, large brushed motor speed control and so on. Thereby achieving the effects of dimming, temperature regulation and voltage regulation.

● Can supply power less than 10,000 watts (resistance load) of large electrical appliances, because of the high power, so the general home appliances or small factory enough to use.



Precautions:

● The load should not exceed the specified maximum power. Pay attention to the temperature for the first use. If the temperature is high (more than 80 ℃), please enhance heatsink. Otherwise, the module and the appliance will be burned out.

● If connect to inductive load or Capacitive load, the power must leave Two-thirds (2/3) margin.



Package Included:

1 × AC 110V-220V 10000W SCR Voltage Regulator



  • 【10000W SCR Voltage Regulator】New upgraded third generation, equipped with intelligent fan, standard aluminum housing safe and durable super power electronic voltage regulator, suitable for lighting engineering lantern control, heating wire, boiler heating control, electric iron, AC brushed motor control, etc., It is an ideal voltage regulator for you.
  • 【Performance】Operating voltage AC 110V-230V. Maximum power 10000W (resistive load), long term operating power 7000W. Voltage adjustable from AC 0V to near input voltage. Full copper 75A super large current terminal.
  • 【Accurate】The trigger circuit is unique, the control voltage is accurate and there is no hysteresis, the resistive load is turned off to 0, and after starting, it will be adjusted from 10V, adjust to the supply voltage that is closest to the input.
  • 【Usage】Connect the SCR voltage regulator to the front of the circuit of the electrical appliance. The ''input' and "output" lines are connected (do not distinguish between zero line and firewire). Rotate the potentiometer rotary lever to achieve light and dark dimming, speed regulation, voltage regulation and temperature regulation, easy to use.
  • 【Precautions】Regulator is not suitable for brushless motor. The load should not exceed the specified maximum power. Pay attention to the temperature for the first use. If the temperature is high (more than 80 ℃), please enhance heatsink. Otherwise, the module and the appliance will be burned out. If connect to inductive load or Capacitive load, the power must leave Two-thirds (2/3) margin.

User questions & answers

Question: Will this work to control a floir buffer sized motor
Answer: I’m sure it will as long as it is within the input voltage and output wattage . What is the amperage rating on the motor.
Question: how big is the shaft on the pot? Diameter
Answer: 0.235"
Question: will this work with a 130 vdc , 4175 rpm, 3.5hp, 20.1amp, treadmill motor
Answer: You-will need to incorporate a bridge rectifier to convert the ac current to dc current. You will probably need to change out the potentiometer to one of a different value in order to better variable speed the motor. I think it comes with a 470 k ohm pot. which will need to be replced with a 200 to 250k ohm potentiometer. Should work better with thosr two upgrades.
Question: Will this work for a 7.5 hp motor at 28 amps, and will I be able to adjust the speed
Answer: Depends on the type of motor. If the motor speed is determined by the line frequency (60Hz) then it won't work since this thing just changes the duty cycle of the 60Hz, but it still puts out 60 hz. If speed is determined by voltage then maybe it'll work. You'd probably have to give it full power to get it going then you can back off on the power. This is nothing more than a VERY high power light dimmer. Works great on heaters. Motors are much more complex when it comes to speed control.

WFLNHB Variable Speed Controller Fit for Router Fan Electric Motor Rheostat AC 1500W / 120 Volt / 15 amps

Based on 29 reviews Check latest price

Product description

 Color : Black

 Fuse : 15 amps

 Current Capacity : 15amps

 Maximum input power : 1500W

 Material : plastic | aluminum

 Plug : 3-pole American(grounded)

 Voltage Capacity : 120V AC | 60Hz

 Dimensions : 14*5.5*4cm/5.51*2.17*1.57"

  • Fit For Router Fan Electric Motor Rheostat Variable Speed Controller AC 1500W / 120 volt / 15 amps
  • For use with brush type motors only, Will not work with brushless type motor or soft/slow start motors,Use with centrifugal fans only
  • Pls confirm the item if it matches your car before you purchase
  • Three settings include : off / on (full) / variable
  • Package include : 1 x Speed Controller

User questions & answers

Question: will this work on a chop saw to slow the rpm's for metal blade
Answer: I believe you could use a non contact tachometer to get the actual RPM that you want then write down the digital number to get that specific RPM afterwards. I have never tested mine in that way but mine seems to be very consistent just eyeballing it and using a timer https://www.amazon.com/Digital-Photo-Laser-Tachometer-Contact/dp/B001N4QY66
Question: Will this work on a wood lathe
Answer: Depends on the input circuitry. If it has regulation, it would probably just see a different average or RMS voltage. If not, the u it probably wouldn't work well.
Question: Could this be used to dim a 500 watt halogen bulb
Answer: Switch and pot come with it. Just hook up motor and power source and you're in business. Diagram on the case. ALWAYS be sure you get the power polarity right!!!.....most boards of this type will be immediately fried if you switch + and - leads. Works great. No reverse, but you can google dpdt switch reverse motor and easily find a diagram that will show you how to simply wire in a dpdt switch and have reverse if you want it. Instructibles has a nice instruction if you need it.

EUGNN AC 220V 10000W SCR Voltage Regulator Speed Control Driver Dimming Dimmer Thermostat Governing Temperature Governor Fan Motor Controller

Based on 24 reviews Check latest price

Product description

Description:

100% brand new and high quality!

Military-grade double-layer circuit board design.

Comes with a heat sink.

Two-way high-power thyristor with a limit current of up to 100 amps.

Such as electric furnace, water heater heating, lighting dimming, small motor speed, electric iron temperature adjustment.

General household appliances or small factories are enough.



Specification:

Color: as shown

Use voltage: AC 220V

Maximum power: 10000W Resistive load limit power, room temperature is recommended for 5000W for a long time

Voltage regulation: 0-220v starts at around 20

Size(approx): 130*60*47mm



Package:

1 pc x Voltage Regulator



Note:

1. Due to the light and screen difference, the item's color may be slightly different from the pictures.

2. Please allow 1-2 cm differences due to manual measurement.

  • Motor Speed Controller can use for lighting heat, such as electric stove, water heater air, rheostat, low speed of the engine Iron, Thermostat, and achieve dimming, thermostats, pressure regulator effect.
  • Double-layer circuit board design,comes with a heat sink.
  • Two-way high-power thyristor with a limit current of up to 100 amps.
  • General household appliances or small factories are enough.
  • Package: 1 pc x Voltage Regulator,Size(approx): 130*60*47mm,Voltage regulation: 0-220v starts at around 20.

User questions & answers

Question: Wich one is it 110v or 220, title says 110v but the about this item says
Answer: Will work either way.
Question: Will this work with dc
Answer: This needs a rectifier to convert the ac input to DC.
Question: Will this work with 120 volt imput
Answer: Yes it will work.
Question: Will this work on 240v
Answer: It should.

XLX 5PCS AC 220V 2000W SCR High Power Electronic Voltage Regulator Module Adjustable Motor Speed Controller Regulation 25A Ultra small LED dimmer with Speed Control Knob

Based on 25 reviews Check latest price

Product description

Features: 

This regulator is 5pcs of a special circuit for motor speed regulation. The minimum voltage that can be adjusted by a precision multi-turn potentiometer.



Parameter:

Use voltage: AC 220V



Maximum power: 2000W



Voltage regulation: AC 50-220V



Specification size: High temperature resistant FR-4 circuit board circuit board 36MM*48MM



Outer size: 48MM*60MM (knob direction) *28MM (height)



Control silicon withstand voltage up to 1200 volts / current 25A



1.6mm thick epoxy copper clad laminate



The voltage regulator with a peak voltage absorption circuit effectively protects the high-power thyristor, and has a longer life and more durability.



Instructions:

 Connect the product in series with the lamp of the desk lamp or the appliance, (ie, disconnect the lamp or the electrical appliance from any of the live or

neutral wires, and connect the two wires of the "product" to the rotary potentiometer.) Rotating rod can play the role of brightness adjustment,

speed regulation, pressure regulation and temperature adjustment; it is very convenient to use.



This product is suitable for: using the new bidirectional high-power SCR, because the current can reach 25 amps,

which solves the overcurrent problem caused by the electric resistance of the electric furnace wire being too small in the case of cooling;

Can be very convenient to adjust the output voltage of mains electricity, in 90-- 220 volts between arbitrary adjustment, power supply for use.

Such as: electric furnace, water heater heating, lighting dimming, small motor speed, electric iron temperature adjustment. Thereby achieving

the effects of dimming, temperature regulation and pressure regulation. Large-scale electrical appliances that can be used with electric power less than 2000 watts are generally large

enough to be used in general household appliances or small factories.

  • Super material:  It is made of electronic accessories element, inner conductor is pure copper. it is long lasting and durable for you to use, used to adjust output voltage between 50V-220V.
  • Package including: 5 Pack of electronic voltage regulator module. Ultra low voltage dc motor governor, with speed control function. The product is suitable for self-recovery fuse, the current is too large and automatically disconnects, and the fuse is automatically restored after cooling.
  • PWM DC Motor Governor specification: The working voltage is AC 50-220V  Maximum output power: 2000W. The current is up to 25A. 
  • High Power High Efficiency: Adopting the latest bi-directional high-power thyristor, it is very convenient to adjust the current to 25A, which solves the over-current problem caused by too small resistance when the electric furnace line is cooling. It is precise and reliable with good long-term stability. With fixing screw hole, convenient for install and fixed. Small size, low power consumption, fast response.
  • A wide range of applications: The motor controller is connected in series to the circuit of lamps or other appliances, and then the knob is turned to adjust light, speed, voltage and temperature. Suitable for electric stove, water heater tune thermal, lighting dimmer, small motor speed, electric iron thermostat, and achieve dimming, thermostats, pressure regulator effect.

AC Motor Speed Controller 110V / 220V Motor Governor for Concrete Vibrator Vibration Motor (Speed Controller with Switch)

Based on 47 reviews Check latest price

Product description

Feature

★Used for vibrating motor, reducing rotational Speed of Vibration Motor and reducing Vibration Force

★Stepless, continuously variable

★Voltage:220V/110V

★Working principle: Adjust speed by Adjusting voltage



Packing list

1PC motor governor



Note:

★One Governor for one motor only.

★When the power is on, please turn the governor (controller) to the maximum scale,so to start the vibrating motor, and then adjust it from the highest to the minimum according to your need.

★It may not possible to start a vibrating motor form a low speed state. It can only be started at a high speed state.

★For the model Governor -PA with no switching function, please remember to shut down the power supply after the motor stops turning.





Our store have many types motors, if you need please contact us :

110V 30W : https://www.amazon.com/dp/B076Q68HSW?ref=myi_title_dp

110V 90W : https://www.amazon.com/dp/B076Q7YS6D?ref=myi_title_dp

  • Voltage: 220V / 110V
  • Adjust speed by Adjusting voltage to save power;
  • Reducing rotational Speed and Vibration Force of Vibration Motor to keep a relax working surrounding;
  • One speed controller for one motor ONLY;
  • It may not possible to start a vibrating motor form a low speed state. It can only be started at a high speed state.

User questions & answers

Question: Is the white wire used as the ground on the input
Answer: This controller is meant to be used with AC current. In normal color coding, black is hot, white is neutral, green is ground. In all color codes, to my knowledge, green is always ground. the other two wires are likely interchangeable.
Question: How do you connect to 220vac there is only one leg to connect to from what i can see when opening the controller
Answer: We did not use 220VAC, we hooked them up to 110VAC. You can only use one motor for each controller. I hope this helps.
Question: can it be used with water pumps ? its 120 watt , 1.2 amp pond pump. what i am looking for is something that can run always
Answer: no, it couldn't
Question: Will this work on a wood lathe by central machinery from harbor freight 3/4 hp, 120 v, 60 hz? ski
Answer: I don’t think

Cdmall Electronic Fan Speed Controller Variable Adjuster for Hydroponics Inline Duct Exhaust Ceiling Fans with 6' Long 120V 15A Cord

Based on 939 reviews Check latest price

Product description

One control switch for 3 settings: Variable Speed, OFF, and Full Speed

  • ONE SWITCH, 3 SETTINGS: Variable, Off, and Full
  • MULTI-FUNCTIONAL: Makes it easy to adjust the speed of your inline fans and duct fans,don't use it on brushless type motors
  • SAFE OPERATION: Built-in grounded plug for safe operation with all inline fans
  • SPECIFICATIONS: Voltage/Frequency:120V/60HZ Max. Amperage:15A
  • WHAT’S INCLUDED: Fan Speed Controller with 6 ft Grounded Power Cord (US standard plug)

User questions & answers

Question: Will this work on HF 8” grinder #62501 as a variable speed control? Want to run wire wheel at slower speed to lessen vibration
Answer: It should. It’s a simple rheostat and handles most high amp greenhouse fans with constant on time.
Question: can this work on Dremel
Answer: Should work with fixed speed models. I bought for variable speed Dremel to run it slower. Variable speed Dremel tools must be set to 10 on tool or they won't power on with this controller. Slowest speed on this controller is faster than slowest speed on Dremel when not connected to this controller.
Question: Is the 8 inch fan strong enough to use in a grow room that is 810 CFM? 9‘ x 9‘ x
Answer: It is going to replace/evacuate all the air in your grow space every 65 seconds. I cant imagine a scenario where you would need more.
Question: Can this work for a 1500w 110 volt heating unit
Answer: The math in the description is a bit inaccurate on this thing. One person correctly points out that it says 15 amps, which works out to 1800 watts. Yet in the product description, it says 1500 watts. Personally, I use this for four 250-watt halogen heating bulbs (so 1000 watts, or about 9 amps), and it works fine for that purpose.

uniquegoods AC 50-220V 2000W(max) 25A SCR Constant Voltage AC Motor Speed controller LED dimmers

Based on 160 reviews Check latest price

Product description

Features:



This controller uses high-quality SCR. And the max current is up to 25A.

For the safety, we suggest the continuous load current is within 5A.

This AC voltage regulator can be used to control AC motor speed, AC light and heating wire temperature.

Inductive or Capacitive Load power should be reduced. For example, recommended for motors within 1000W



Operating instruction:



Before you attempting to wire the controller, make sure all power is disconnected.

1. Cut any one of the battle line or zero line of the lamp or electrical appliances, and connect wires refer to the “wiring diagram” (NO.6 picture)

2. Turn on the power, and adjust the potentiometer.



Package Including:



1 x AC Motor Speed Controller

User questions & answers

Question: Does this "knob" have an off position
Answer: the unit does not have an 'off' position..just a low voltage position..safest course of action is to install a 'off' switch on the supply voltage
Question: Can this be used as a dimmer for a light
Answer: yes,it can.
Question: i am using this on a 1/8hp ac motor. The knob will only run it off and on and the range doesn't change much. What am I doing wrong
Answer: This knob can work with most series motor but can not be used with inductive motor ,the knob work power is much high than the motor .
Question: Does this controller reduce voltage or frequency? I am looking to control a small synchronous motor that cannot be slowed by varying the volt input
Answer: it reduce voltage for synchronous motor you a VFD(variable frequency drive) https://www.amazon.com/Variable-Frequency-Inverter-Converter-HUANYANG/dp/B0775QGLVJ/ref=sr_1_1_sspa?crid=3K6P927DWHC5C&keywords=variable+frequency+drive+1hp&qid=1565584085&s=gateway&sprefix=variable+frequency+drive%2Ctools%2C325&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEySFlTUFo5VzVZVEJDJmVuY3J5cHRlZElkPUEwMzA5NTg5MlA3UlBZQk5CREE5SCZlbmNyeXB0ZWRBZElkPUEwOTI4MTMyMzRHMVhMWDZINTdVRyZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

AC 110V 400W Knob Motor Speed Controller DC 0-90V Variable Adjust Lathe Control

Based on 62 reviews Check latest price

Product description

Descriptions:

* SINGLE-PHASE CIRCUIT: This single-phase asynchronous motor speed controller can be used for 24V, 36V, 90V DC motors

* HUMANIZED SHELL DESIGN: This electric speed regulator has small size, high precision, wide speed controlling range, low power consumption, Used for single (1/3)phase DC motor.

* CONVENIENT SPEED CONTROL: The Speed Regulator with adjustable knob can be used to adjust voltage freely, convenient and simple.

* LONG SERVICE LIFE: Our Knob motor speed controller with Over Current protection and short circuit protection.(with 5A fuse)

* WIDE APPLICATION: This motor speed controller could widely used for speed governing device drivers of packaging, printing, electronics, instrument meter, clothing machinery, medical machinery and other industries



Features:

* Operating Voltage: AC 110V

* Controll motor Power: 0.01-400W

* Ouput DC Votage: DC 0-90V Adjustable

* Fits for DC 24V, 36V, 90V ect DC Motor

* Size: 100*60*112mm

* PW PW: connected as emergency stop

* M+ M-: motor + Motro -(DC output)

* AC AC: 110AC input



Package:

* 1*speed controller



Attention:

    * Don't ran the motor at full speed at first, please increase the speed gradually. Or the fuse will be damaged.



  • SINGLE-PHASE CIRCUIT: This single-phase asynchronous motor speed controller can be used for 24V, 36V, 90V DC motors
  • HUMANIZED SHELL DESIGN: This electric speed regulator has small size, high precision, wide speed controlling range, low power consumption, Used for single (1/3)phase DC motor.
  • CONVENIENT SPEED CONTROL: The Speed Regulator with adjustable knob can be used to adjust voltage freely, convenient and simple.
  • LONG SERVICE LIFE: Our Knob motor speed controller with Over Current protection and short circuit protection.(with 5A fuse)
  • WIDE APPLICATION: This motor speed controller could widely used for speed governing device drivers of packaging, printing, electronics, instrument meter, clothing machinery, medical machinery and other industries.

User questions & answers

Question: Because my motor is 36v is there a way to set this to NOT supply more than 36v
Answer: Nope, unless you set the knob and put it inside the container so it can’t be adjusted (bad idea)
Question: Will this power a 2.5 hp 90v dc motor
Answer: This product runs my 1hp 95v dc motor but 400w is really not enough. I wish I would have got one with more watts.
Question: What can I do with the PW function
Answer: it is used to stop the motor
Question: Will this work on a 30A draw trolling motor
Answer: I doubt it - using OHMS LAW - Watts = Volts * Current (W=VA) - using the biggest DRAW of voltage on the DC side - 400w = 90V * A so then the max amperage draw this thing can handle is A = W / V so 400w / 90V = 4.44 amps max.

SongHe AC 110V 120V 220V 230V 10000W High Power SCR Motor Speed Controller Voltage Regulator Dimming Attemperation Thermoregulation Board

Based on 11 reviews Check latest price

Product description

Description: Military level double circuit board design High-voltage condenser ST trigger diode With heatsink Features: Voltage: AC 110V-230V Power: cont. 5000W below; Max. 10000W Voltage Regulation: AC 10V to 220V (Adjust begin 20V) Dimensions: 130 * 60 * 47mm (5.12"x2.36"x1.85") Application: Electric furnace, water heater, the lamps and lanterns that move light, small AC motor, solder iron temperature control and so on (Inductive or capacity load power should be reduced, the voltage regulator is equipped with two way high power thyristor, needn't to add any component can be used , very convenient and practical.) Note: The product needs to be connected to the load and adjust the potentiometer to detect the output voltage change. Package includes: 1 x 10000W SCR Voltage Regulator

User questions & answers

Question: Can this be used with USA 110v house power
Answer: Works just fine on my 120v house power, which is what most houses in the U.S. have.
Question: Can this be used to start an induction saw motor just to get to speed, limiting inrush current) 120v 14.7A (4-5x inrush current, briefly
Answer: Most of the 220V motor can, can not guarantee that the SCR power is at least 4 times more than the motor.

Yaegarden 400W Motor Speed Controller Electric Speed Regulator wiith Knob Switch Adjustable Knob Motor Speed Controller AC 110V Input DC 0-90V Output

Based on 44 reviews Check latest price

Product description

1 x AC 110V Motor Speed Controller



Features

▪ Small size, high precision, wide speed controlling range, low power consumption and long service life;

▪ Soft Start Function : when the motor suddenly loses power during operation and calls again, the electric power will start slowly (soft start) to prevent instantaneous large current from burning out the motor;

▪ Stepless Speed Regulation Function : The speed regulation linearity is good. Constant torque performance at low speeds. When the motor turns very slowly, the force is still very large;



Specifications

▪ Operating Voltage(Input Voltage) : AC 110V

▪ Power : 0.01-400W

▪ Motor Current : 0 to 2.2 Amps

▪ Output Voltage : DC 0-90V adjustable



Wiring

▪ AC, AC : AC 110V power supply input

▪ A+, H : Motor+ and Motor- (DC output)

▪ PW, PW : Motor emergency stop. Connect the PW and PW, the motor will be stopped emergently



Note

▪ With Over Current protection and short circuit protection;

▪ You can get the most friendly customer service, please feel free to contact us if you encounter any problems during use, 90 days free return or refund.



  • This motor speed controller could be used for 24V, 36V, 90V DC motors;
  • Features : small size, high precision, wide speed controlling range, low power consumption and long service life;
  • Soft Start Function : when the motor suddenly loses power during operation and calls again, the electric power will start slowly (soft start) to prevent instantaneous large current from burning out the motor;
  • Stepless Speed Regulation Function : The speed regulation linearity is good. Constant torque performance at low speeds. When the motor turns very slowly, the force is still very large;
  • Note : You can get the most friendly customer service, please feel free to contact us if you encounter any problems during use, 90 days free return or refund.

User questions & answers

Question: Can this run a 95v dc pm threadmill moter
Answer: The motor below 2A, the power below 250W, and the rotation speed below 3000 rpm. Once meet these condition, it can be used. Any one of these three fails to meet the requirements, the motor cannot be used.
Question: Will this controller work with this motor ? makermotor 3/8" d shaft 12v dc reversible electric gear motor 100 rpm
Answer: I’m not sure about your motor but it works great on my craftsman dc motor scroll saw
Question: Can you reverse directions
Answer: I don’t think so mine just goes from zero to a high speed I use it on a small saber saw

For Router Fan Variable Speed Controller Electric Motor Rheostat AC 120V

Based on 116 reviews Check latest price

Product description

For Router Fan Variable Speed Controller Electric Motor Rheostat AC 120V

Three settings include off, on (full) and variable. Simple use the dial to increase or decrease fan motor speed. 120 volt/15 amps.

For use with brush type motors only.

110v /60hz power cord



Specification :

  • Material: plastic / aluminum
  • Current Capacity: 15amps
  • Voltage Capacity:120V AC/60Hz
  • Maximum input power: 1500W
  • Plug: 3-pole , American(grounded)
  • Dimensions:14*5.5*4cm/5.51*2.17*1.57"
  • Fuse: 15 amps
  • Line core: 1m.
  • Color: Black
Attention:
  • Use with centrifugal fans only
  • Will not work with brushless type motor or soft/slow start motors.
  • Router sold separately.
Package List :

1 x Speed Controller



Note: pls confirm the item if it matches your car before you purchase.



 

  • This listing is For Router Fan Variable Speed Controller Electric Motor Rheostat AC 120V Newest
  • Three settings include off, on (full) and variable. Simple use the dial to increase or decrease fan motor speed. 120 volt/15 amps.
  • For use with brush type motors only.
  • 110v /60hz power cord
  • Attention: Will not work with brushless type motor or soft/slow start motors. Router sold separately.

User questions & answers

Question: Will this work to control the blower speed on a hot blast wood burner
Answer: The 1203BB DC Motor Speed Regulator controls the speed of a DC motorby adjusting Pulse-Width-Modulated (PWM). It provides a continuous current of 3A to your DC motor or other DC load. Besides, the circuit also includes a 3A fuse. With reverse connection of power supply and control the forward or reverse direction and the stop of DC motor by switch.
Question: what variable speed switch should i get for a 110v lathe 3/4 hp motor
Answer: Without a load you will only read the input voltage on the output. One a load is connected you will get an output voltage based on the potentiometer position.
Question: Does this use PWM or voltage control
Answer: Question doesn't make sense. PWM by definition is a continuous wave where the duty cycle can vary. Almost all of these type devices pump out a square wave. It can be 'rounded' some by putting a capacitor across the output (ie, a filter) - the final shape to be determined by current draw and capacitor size. In hardware discrete is often 'digital.' To some a square wave looks 'digital', but, PWM is not discrete and the wave is actually generated with analog electronics, not digital (in this device). An Ardunio or other processor can generate PWM, and that would obviously be a digitally generated source.
Question: Will this control a heating element
Answer: it will control the speed of a dc motor within the specified voltage range. It will not reverse the direction of the motor

AC 50-220V 2000W 25A Motor Speed Controller SCR High-power Electronic Voltage Regulator Module Motor LED Dimmerswith Speed Control Knob(5pcs)

Based on 6 reviews Check latest price

Product description

Features:

This regulator is 5pcs of a special circuit for motor speed regulation. The minimum voltage that can be adjusted by a precision multi-turn potentiometer.

Package Include:

5pc * 50 - 220V 25A AC Motor Speed Controller

  • Material: made of electronic components, internal conductor: pure copper.
  • Features: The module uses thyristors, with a withstand voltage of up to 1200V. The regulator has a peak voltage absorption circuit, which can effectively protect high-power thyristors, has a long service life and is more durable. High-quality CBB capacitors can withstand 630V DC withstand voltage.
  • Note: The module is connected to an AC voltage of 220V, so safety must be paid attention to during the debugging process to prevent electric shock accidents.
  • Specification size: high temperature resistant FR-4 circuit board circuit board 35MM * 48MM, external size: 48MM * 60MM (knob direction) * 26MM (height)
  • Package contains: 5 * 50-220V 25A AC motor speed regulator

QWORK AC 110V 400W Knob Motor Speed Controller DC 0-90V Variable Adjustable Speed Regulator for 90V DC Motors

Based on 22 reviews Check latest price

Product description

Feature:

Our speed controller can only be used for 90V DC motors.

With our compact design and high precision, it reduces power consumption.

Package:

1 x Motor Speed Controller

  • Fitting - Our speed controller can only be used for 90V DC motors.
  • Low Power Consumption - With our compact design and high precision, it reduces power consumption.
  • Speed Control - Due to the adjustable knob, it can adjust the voltage freely, convenient and simple.
  • Widely Usage - It can be used for speed governing device drivers. It fits for many areas, such as packing, printing, electronics, clothing machinery, and etc.
  • 100% Satisfied Service - Enjoy a smooth & frustration-free experience with our 100% Satisfied Service in one Month!

User questions & answers

Question: Will this work for a 110v 3/4hp 4.5amp 2500rpm dc motor
Answer: This is a photo alarm. Your old one was an ion one. Different models respond better to different situations. Best to have both or a combination of both. http://www.nfpa.org/safety-information/for-consumers/fire-and-safety-equipment/smoke-alarms/ionization-vs-photoelectric
Question: is this for brushless motor or brush
Answer: This smoke detector is photo-electric not ionizing. Someone else can probably give you a more precise answer but I'd figure it's about the same amount of radiation as the dirt outside.
Question: How many watts can this handle
Answer: Dear Mr. Priestley, The detector comes with a mounting bracket and screws with anchors. If you are not mounting the detector into a wooden surface or a wooden stud underneath drywall then you would have to use a sheetrock anchor to mount the receiving bracket for the detector. All of that is provided and once the mounting bracket is secure in the wall or ceiling, simply align the detector tabs with the mounting bracket receivers, press in and give about a 1/4" rotation on the detector and it should hold fast.
Question: Sirve para los motores de las cintas de correr? arriba dice motores dc. Pero quiero confirmar
Answer: The alarm works perfectly

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