24 VDC 40 A MOTOR SPEED CONTROL

Motor speed control for Schwinn, Mongoose and GT Scooters with throttles with 3-pin connectors. For other applications a 50K Ohm pot is required. Two-pin Molex-type connector mates with the power connectors on the electric scooter and bicycle motors. Aluminum case, 3.80" x 2.38" x 1.27". Leads for battery have 2-pin water-proof connectors. Motor has 2-pin Molex-type connector. White, molex-type connectors for potentiometer (throttle) and trimmer. Hook-up diagram included.

Spec sheet available in PDF format.

Average Customer Review:

(3 Reviews)

TWIST GRIP THROTTLE FOR ELECTRIC BIKE/SCOOTER, 36V

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Customer Comments

Average Customer Review:

(3 Reviews)

Wayne C from Georgia

Nice Controller

Thanks for posting that web page. That's great information! This isn't meant to contradict your findings, but my experience with motor controls has shown me that "SP" usually means stop, while "ST" usually means start (they abbreviate by using the last two letters). The wire colors seem odd to me if the enable circuit simply closes the red to black. But, I'm going to take your word for it. If it disables the controller that's all that matters. Fine speed adjust doesn't make sense unless it limits max speed. I've cracked open one of the units I purchased to verify the schematic suppiled with it, but haven't had time to perform a "maximum smoke test" - not to mention digging thru all the silicone potting compound. What a mess!!! Can't wait...

James McGuire from Knoxville, MD

More product details

As mentioned in a previous comment, the 2-wire red/black interface appears to be a brake switch instead of a "fine adjust." We posted a detailed teardown of the controller and the throttle assembly here:

http://eludium.stensat.org/mcguire/projects/motor_control/motor_control.htm

A customer from Atlanta, GA

Data sheet incorrect, watch out for polarity

CAUTION: the red/black connector is NOT oriented the same way as a red/white tow hitch connector (red goes to black, white goes to red). I blew out a 15A fuse by not checking, but the motor controler survived.

The data sheet is incorrect, the two connector control circuit is a break circuit. When bridged, the motor stops (useful for connecting to break switches).

FYI- Motor controller draws 20mA when idle.

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