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Thermal switch 80st NO KSD9700

Thermal switch 80st NO KSD9700

  • Thermal protection of the controller
2,77 €
incl. VAT / pc
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Thermal switch 80st NO KSD9700



The thermal switch should be glued to the wall of the controller with thermally conductive glue (sold separately).

The thermal switch should be glued between the radiator fins of the controller housing on the wall where the screws fixing the internal transistors are visible. The correct mounting location is shown in the picture below.

Click to enlarge the photo.

Thermal switch 80st NO KSD9700

After mounting the thermal switch, solder the wires and extend them up to the handlebars. Then connect both wires to one of the signal connectors for the brake lever. Typically, remove the stock controller harness connector and solder a second brake sensor in its place along with the thermal switch wires.

Principle of operation

If the temperature of the controller exceeds 80 degrees. the thermal switch will begin to short its wires connected to the brake levers. The controller will assume that the brakes have been used and will shut down the drive. This will keep the controller off until it cools down. The typical activation time of such a protection is about 10 minutes (the time needed for the controller to cool down).


Installation of thermal protection does not void the warranty. We highly recommend doing this, especially if the controller is mounted in a box, bag, etc.

Opening temperature
80st +-5
Short circuit temperature
80st +-5
20x7,4x3,6mm (length x width x height)
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