Speed Controller SPD-YK31C24 Installation and Wiring

Rated Voltage   24 Volts
Rated For Motors   Up To 350 Watts
Maximum Current   25 Amps
Rated For Chargers   Up To 3 Amps
Conversion Efficiency   95%
Under Voltage Protection   20 Volts ± 0.5V
Recommended Fuse Size   30 Amps
Dimensions   3-1/4" x 2-9/16" x 1-1/2"
Under Voltage Battery Protection: When the battery pack falls below a specific Voltage the controller turns the motor off preventing over discharging of the battery pack which extends the battery packs lifespan. (The cutoff value is 20 Volts ± 0.5 Volts)
Motor Cut-Off During Braking: When the brakes are engaged the brake switch signals the controller to turn off the motor. The motor turns on again after the brakes are released.
*Power Connector
Red = Positive
Black = Negative

Mating Connector Item # CNX-50
Required Connection  
Motor Connector
Blue = Positive
Yellow = Negative

Mating Connector Item # CNX-50
Required Connection  
Throttle Connector
Red = + 5V Output
Black = Negative
Blue = + 1-4V Input

Mating Connector Item # CNX-52
Required Connection
Key Switch Connector

Mating Connector Item # CNX-51
Required Connection  
Battery Charger Connector
Red = Positive
Black = Negative

Mating Connector Item # CNX-51
~Optional Connection
Brake Lever Switch Connector

Mating Connector Item # CNX-51
~Optional Connection
Brake Light Connector

Mating Connector Item # CNX-51
~Optional Connection
Power Light Connector

Mating Connector Item # CNX-51
~Optional Connection
*The power connector should be the last connection made.
*Fuse or circuit breaker protection is required between speed controller and battery pack.
~Optional Connections do not need to be hooked up for the speed controller to operate.