Image for Illustration purposes only. Actual product may vary
The T48 controller is supplied with an output board (relay, logic/SSR or triac) installed. The output board is configured for the type of Main Control and Alarm Output based upon the model number ordered. The output board is field replaceable in many models. (For models where the output board is not replaceable, the controller must be returned to the factory for output board repair.) This field replaceable relay output board is used with T4820000 and T4820010.