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Heater wiring schematic diagrams
It is recommended to install an ON/OFF isolation switch before the controller and ensure the unit is turned OFF after use.
Multiple heaters can be operated using a single controller, however the maximum current rating of 16A must not be ex-
ceeded. For direct wiring to the controller, the maximum is generally one heater unit unless the combined maximum cur-
rent is less than 16A. For example, 2x THH1800A can be connected directly to the controller.
Below are example circuits indicating potential installation configurations.
Always check with your electrician and ensure all wiring is in accordance with local regulations.
