Blocking protection(20A current limited) can limit the high current produced by the blocking of the motor. The maximum current is 20A. Current: 0-20A (Limited value 20A). Blocking protection is not a power cut, it is current value of 20A.
eBay
DC 12V-36V 15A 500W Brushless Motor Controller Hall BLDC Driver Board
Aliexpress UK
This speed governor is used for the use of DC brushed motors (the motor is connected regardless of positive or negative). Good‑quality resin material, possess heat resistance, low temperature resistance, and excellent electrical performance.
eBay
4CH Wifi Switch Module Motor Controller for Rolling Sliding Door DC 12V 24V 32V AC 110V 220V Relay RF 433 Remote Work Ewelink
Aliexpress UK
Rated persistent current: 10A. Switching frequency: 25KHz. Waterproof, anti-leakage enclosure, high power drive module. The positive and negative poles of the motor can be reversed. Add to Favourites.
eBay
Microstep Motor Driver TB6600 DM542 DM860 DM556 Controller For 42/57/86 Nema17 Nema23 Supply Voltage 20-50V DC 1-5.6A
Aliexpress UK
It is made with high quality circuit board which ensures a longer service life. The currentcan be adjusted from 0A to 30Awhich is quite convenient to set. Speed Range: 0% to 100%(variable). Designed with a digital display that shows the rate in percent of actual speed to maximum speed.
eBay
2A DC 1.8V-15V 3V 5V 6V 9V 12V Micro PWM Motor Pump Speed Controller Switch LED Dimmer Low Voltage Control Regulator on/off
Aliexpress UK
PWM duty cycle: 0%-100%. PWM frequency: 13khz. Rated current: 5A (peak current 8a). - The circuit also includes the function of digital display whose digital tube display the duty ratio. - Standard industrial-grade touch knob, one touch to enter sleep state, and then touch to restart work.
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DC 7.4V/11.1V 12V Mini BLDC Brushless Motor Driver ESC 200W High Power Adjust Speed Controller Board for Turbo Ducted Fan DIY
Aliexpress UK
It can run independently as a module, or it can be used in conjunction with other systems. Adapted motor: stepper motor. Drive capacity: 4A. Motor signal: common cathode. 5: LCD display. We will not take any such responsibilities.
eBay
DUN/VOTOL EM100 120A DC Controller for Peak 4-5KW Brushless Motor
Aliexpress UK
Continuous Power: 4000W. Module Size: 150 x 85 x 45mm(L W H). SPeed Adjust Range: 0-100%. Knob Size: 100K(with switch).
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DC 1.8V-15V 2A 30W PWM Motor Speed Controller Regulator Low Voltage Fan Speed Control Switch PWM Adjustable Drive 5V 12V
Aliexpress UK
Constant speed cruising, braking energy recovery, adjustable speed limit. Suitable for XIAOMI M365 electric scooter. Drive Motor Maximum Power: 350W x 2. Power：350W. Sports and comfortable mode switching, can through APP upgrade firmware, for LEDZOD APP(with Bluetooth function version).
eBay
DC Current Detection Module 5V 24V 30V Relay Digital Display Overcurrent Alarm Switch Controller Motor Stall Protection
Aliexpress UK