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Product description
Variable Speed Controller with Robust Protection
Precision voltage adjustment knob，Voltage adjustment utilizes a precise potentiometer, offering high accuracy and excellent stability
Surge and Spike Protection: Equipped with RC absorption to safeguard against voltage spikes and surges. Flame-Retardant Shell: High-temperature stability with excellent resistance to conductivity, rust, and high voltage.Overload Protection: Features an independent switch for voltage control, automatically shutting off at currents exceeding 15 amps.Short-Circuit Protection: Ensures safety for both equipment and users by preventing electrical faults.High-Precision LED Display: Real-time voltage monitoring for precise adjustments.Not Suitable for Sensitive Appliances: Avoid use with devices containing circuit boards and capacitor electronic components.Standard Plug Compatibility: Compatible with Type A and Type B plugs, ideal for US standards.Convenient Operation: Easy adjustments and real-time monitoring for seamless use.
Stepless Variable Speed Knob
Specifications Parameter
Input Voltage: 110-120VCurrent Capacity: 15A MaxRated Current: 10AFrequency: 60HzResistive Load: Max 2000WInductive Load: Max 1000W
It is suitable for US standard A plugs and B plugs.
High-precision LED voltage display provides real-time output voltage for easy adjustments at any time.
Note1: This speed controller is only suitable for use with AC brushed motors， Please do not use it with brushless motors.Note2: The output voltage of the controller is based on the voltage displayed on the LCD screen. The knob indicates an incorrect voltage, please ignore it.Note3: Why do some motors stop when they cannot be adjusted to low speed after use? Because some motors have low voltage protection, when the voltage drops below the protection voltage, the motor stops running. (The protection voltage is set by the motor manufacturer, such as 70V, 60V, etc.)
Precautions and Usage Instructions
1. Ensure Proper Voltage Measurement: When the machine operates without a load, the measured output voltage is only virtual. For an accurate voltage reading, connect a load of at least 35W before adjusting the voltage.
2. Suitable Power and Voltage Range: Please operate the machine within the specified rated power and voltage range. It is intended for use with AC grid power only.
3. Power Limits for Different Loads: The mentioned 4000W power rating refers to the maximum limit when using resistive loads. For inductive loads, such as series motors, the power should be limited to 1/3 of the resistive load power. Exercise caution when using the machine with circuit board electronic products.
4. Normal Heat Generation: It is normal for the machine to generate slight heat during operation. Place and use the machine in a dry and well-ventilated area.
5. Normal sound: It is normal for the motor to produce a slight buzzing sound during operation.
6. Safety Precautions: This product features a flame-retardant plastic shell and must be properly grounded. Ensure that the power outlet is grounded for safe operation.
7. Incompatibility with Soft Start Voltage Regulators: This machine is not designed to work with soft start or slow start voltage regulators. Additionally, it should not be used with ordinary LED lights and household appliances.
8. The power switch includes an overload protection function. If the power is switched off due to overload, it can only be turned on again after a certain period when the overheating protection has been triggered. To resolve the issue, reduce the connected load.
IMPORTANT – FOR BRUSHED AC MOTORS ONLY: This motor speed controller works by reducing voltage to slow down AC brushed motors. It is NOT compatible with brushless motors, DC motors, or appliances with electronic circuit boards (such as microwaves, rice cookers, water pumps, washing machines, or LED energy-saving lamps). Please verify your motor type before purchasing. Works with: inline duct fans, exhaust fans, ceiling fans, angle grinders, electric drills, routers, incandescent lamps, and resistance heaters.
REAL-TIME LED VOLTAGE DISPLAY: See your exact output voltage at a glance with the built-in LED meter. The high-precision display shows real-time voltage from 0-120V as you turn the dial, so you always know the exact power being delivered to your device. No more guesswork – dial in the precise speed, brightness, or temperature you need. Works with devices of any wattage for full-range speed control.
ELECTRONIC OVERLOAD PROTECTION – NO FUSE REPLACEMENT NEEDED: The built-in 15A circuit breaker automatically cuts power when current exceeds 15A, protecting your equipment and the controller. Unlike traditional fuse-based controllers, simply flip the reset switch to restore power – no hunting for replacement fuses. Recommended working current: within 10A for extended use.
POWERFUL 15A / 1500W CAPACITY: Input: 110-120V AC / 60Hz. Max Current: 15A. Rated Current: 10A. Max Resistive Load: 2000W. Max Inductive Load: 1500W. Stepless variable speed control lets you precisely adjust motor speed, incandescent light brightness, or resistance heater temperature. Features a convenient ON(RESET)/OFF rocker switch and smooth-turning precision dial with 0-100% power range.
HEAVY-DUTY CONSTRUCTION: Built with flame-retardant ABS plastic shell and thickened phosphor bronze internal contacts for reliable long-term use. Features a grounded 3-prong plug for safety, compatible with both Type A and Type B outlets. Compact size (5.5″ x 2.4″ x 2.25″) with 3 ft power cord and portable hook design for easy mounting. Package includes: 1x AC Motor Speed Controller with LED Display.
Original price was: $39.90.$17.77Current price is: $17.77.