The cooling controller ST-BOX 300 is used for thermostatic temperature regulation in refrigerating plant and is able to control a com-pressor with the “Pump-Down” function. The controller is supplied with 90…250V AC and has seven relay outputs. The outputs can be used for different functions, e.g. for a compressor, a defroster, lights, an alarm relay, etc. Furthermore an output for a DC fan is available.
The operation is done directly on the box or on a separate connectable display. The ST-BOX is provided with a 3-digit display, 3 control keys and 10 LEDs for status display of the relay exits. Parameterization takes place in several operating levels with increasing security level.
The controller is networked via the ST-Bus interface
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