Speed Controller SPD-CT302S9 Installation and Wiring

Rated Voltage  24 Volts
Rated For Motors  Up To 250 Watts
Maximum Current  20 Amps
Rated For Chargers  Up To 3 Amps
Conversion Efficiency  95%
Under Voltage Protection  20.5 Volts
Recommended Fuse Size  25 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 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
Blue = Positive
Brown = Negative

Mating Connector Item # CNX-50
Required Connection
**6 Wire Throttle, Brake Lever Switch, Battery Gauge Connector
Throttle = Red, Black, Green
Brake Lever = Orange, Violet
Battery Gauge = Gray, Violet
Mating Connector: CNX-53
Throttle = Required Connection
~Brake Switch = Optional Connection
~Battery Gauge = Optional Connection
***Throttle Connector
(found on older version)

Mating Connector Item # CNX-52
***Brake Lever & Battery Gauge Connector
(found on older version)

Mating Connector Item # CNX-52
Key Switch Connector

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

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

Mating Connector Not Available
~Optional Connection
Brake 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.
 **Replaces throttle connector and brake lever/battery gauge connector found on older version.
***Replaced by six wire connector on current version.
~Optional Connections do not need to be hooked up for the speed controller to operate.