Speed Controller SPD-24250A 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   20 Amps
Dimensions   3-5/8" Wide x 2-1/2" Long x 1-1/4" High
Sealed Design: This speed controller is factory sealed with black silicone sealant around its wires and case seams to prevent water intrusion.
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 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. Connecting a brake switch to this controller is an optional connection.
*Power Connector
Red = Positive
Black = Negative

Mating Connector Item # CNX-50


Required Connection

Motor Connector

Yellow = Positive
Blue = 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
Battery Gauge
Mating Connector Item # CNX-51
~Optional Connection
Brake Lever Switch Connector
Mating Connector Item # CNX-51
~Optional Connection
Brake Light Connector
Mating Connector Item # CNX-51
~Optional Connection
*The power connector should be the last connection made. e.
*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.