Speed Controller SPD-CT611B9 Installation and Wiring

Rated Voltage   36 Volts
Rated For Motors   Up To 500 Watts
Maximum Current   25 Amps
Rated For Chargers   Up To 3 Amps
Conversion Efficiency   95%
Under Voltage Protection   31 Volts ± 1 Volt
Recommended Fuse Size   30 Amps
Dimensions   3-1/4" x 3" 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 31.0 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
Key Switch Connector
 

Mating Connector Item # CNX-52
Required Connection
Throttle, Brake Lever Switch and Battery Indicator Connector
Throttle = Black, Red, Green
Brake Switch = Pink, Blue
Battery Indicator = Yellow, Black
 

Mating Connector Item # CNX-54

  
Throttle is a Required Connection
~Brake Switch and Battery Indicator are Optional Connections
**Battery Charger Connector
Red = Positive
Black = Negative
 
Mating Connector Item # CNX-51
~Optional Connection
Power Light Connector
Blue = Positive
Brown = Negative

 

Mating Connector Item # CNX-70
~Optional Connection
Brake Light Connector
Red = Positive
Black = Negative
 

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.
**The battery charger connector wire polarity is the opposite of this version on some older versions. Confirm that the same color wires connect together before plugging the charger port into the controller. If the wire colors do not match then switch the positions of the male terminals in the charger port's connector, or purchase our 2-wire charger port polarity adapter (item # CPT-ADAPTER1).
~Optional Connections do not need to be hooked up for the speed controller to operate.