ITEM NAME:40A DC motor governor Built-in fan Motor forward rotation reverse blocking  N6Y3 40A DC motor governor Built-in fan Motor forward rotation reverse blocking  N6Y3 Product parameters Colour: Black Material: plastic + metal Input voltage: DC10-55V Output voltage: linear under load Output current: 0-40A Continuous power: 2000W Speed control type: flow adjustment Speed control mode: potentiometer (linear) Speed range: 0 - 100% Control frequency: 25KHZ Stall protection: current limit Current limiting parameter: 40A Forward rotation reverse: Yes (three gear type switch) Potentiometer according to the opening: 7mm Wiring type: fence terminal block Product net weight: 282 grams Motherboard size: 125mm*90mm*45mm Features Stall protection Built-in cooling fan Attention Stall protection is current limiting Motor characteristics, large starting current, infinite blocking current The current limiting is very good to protect the motor and governor It is a good way to cool down the fan with the built-in fan that generates heat generated by continuous work. Products include 1x40A DC motor speed controller Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..The current limiting is very good to protect the motor and governor. Forward rotation reverse: Yes (three gear type switch). Motor characteristics, large starting current, infinite blocking current. Colour: Black.