Siemens RWF50.30A9 control box

Siemens RWF50.30A9 controller is primarily used for temperature and pressure control in heating plants operating on liquid fuel or gas. It is used as a continuous controller with analog output. An external switch can be used to switch the controller to two-stage mode for controlling two-stage burners. The built-in thermostatic function turns the burner on and off. The direction of the controller's control action can be reversed for operation with cooling systems.