Speed Controller SPD-481200 Installation and Wiring

Rated Voltage  48 Volts
Rated For Motors  Up To 1200 Watts
Maximum Current  35 Amps
Rated For Chargers  Up To 3 Amps
Conversion Efficiency  95%
Under Voltage Protection  41 Volts
Recommended Fuse/Circuit Breaker Size  40 Amps
Dimensions  4-3/8" x 2-3/4" 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 approximately 41.0 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
Blue = Positive
Yellow = Negative


Mating Connector Item # CNX-50

Required Connection
Throttle Connector

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
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.