Speed Controller SPD-SD457 Installation and Wiring

Rated Voltage   24 Volts
Rated For Motors   Up To 450 Watts
Maximum Current   35 Amps
Under Voltage Protection   21 Volts
Recommended Fuse Size   40 Amps
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 21.0 Volts ± 1.0 Volts)

*Power Connector
Red = Positive
Black = Negative

Mating Connector Item #CNX-2PX2


Required Connection  

Motor Connector
Blue = Positive
Green = Negative

Mating Connector Item #CNX-50


Required Connection  
Throttle Connector
Mating Connector Item # CNX-63

Required Connection  
Battery Gauge Connector
Mating Connector Item # CNX-62

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

~Optional Connection
*The power connector should be the last connection made.
*A power switch and fuse or circuit breaker protection needs to be installed between the speed controller and battery pack.
~Optional Connections do not need to be hooked up for the speed controller to operate.