Speed Controller SPD-12250 Installation and Wiring

Rated Voltage   12 Volts
Rated for Motors   Up To 250 Watts
Maximum Current   21 Amps
Rated for Chargers   Up To 3 Amps
Conversion Efficiency   95%
Under Voltage Protection   10.5 Volts ± 0.5 Volt
Recommended Fuse or Breaker Size   30 Amps
Dimensions   3" Long x 2-3/8" Wide x 1-1/2" High
Versatile Motor Power Range: Works with 12 Volt motors that are 250 Watts and under. Designed for 150 Watt, 175 Watt, 180 Watt, 200 Watt, 225 Watt, and 250 Watt motors.

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 10.5 Volts ± 0.5 Volts)
Motor Cut-Off During Braking: When the brakes are engaged the brake switch signals the controller to turn off the motor. The motor resumes running when the brake is released.
*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
Red = + 5 Volts Output
Black = Negative
Green = 1-4 Volts Input

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

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

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

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.