This speed controller for permanent magnet DC Motor is industrial product with high stability. It's the combination of speed controller and overload protector. With the slow start function, it will help a lot in protecting the speed controller and motor from instantaneous large current. With locked-rotor function, it is capable of limiting large current caused by locked rotor, rather than cutting off power. It's also upgraded with low-voltage . All in all, this is a well-designed product with customers in mind, and it's multi-functional and .

Specifications:
Input Voltage: DC10V-55V
Output Voltage: Linear with load
Output Current: 0A-40A
Limit Current: 30A
Speed Range: 0% to 100%
Regulation Method: Potentiometer(Linear, 270°)
Control Frequency: 15KHz
Wiring Type: Screw terminal
Rotary Knob: 10K(with switch)
Size: 80 x 56 x 28mm / 3.15 x 2.2 x 1.1"

Package Includes:
1 x Speed Controller