Speed Controller SPD-24500R Installation and Wiring

Rated Voltage  24 Volts
Rated For Motors  Up To 500 Watts
Maximum Current  31 Amps
Rated For Chargers  Up To 3 Amps
Conversion Efficiency  95%
Under Voltage Protection  20.5 Volts
Recommended Fuse Size  40 Amps
Dimensions  4-3/8" L x 2-5/8" W x 1-5/8" H
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 approximately 20.5 Volts ± 1.0 Volts)
Motor Cut-Off During Braking: When the brakes are engaged the brake switch signals the controller to turn off the motor.

*Power Connector
Red = Positive
Black = Negative


Mating Connector Item # CNX-50


Required Connection  
Motor Connector
Yellow = Positive
Blue = Negative


Mating Connector Item # CNX-50
Required Connection  
Throttle Connector

Mating Connector Item # CNX-52
Required Connection  
On/Off Power Switch Connector

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

Mating Connector Item # CNX-52
Connect Orange + Blue wires for reverse.
~Optional Connection  
Battery Charger Connector


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
Cruise Control 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.