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Potential isolation and electrical safety of the interfaces
The interfaces (RS-485, Ethernet) have:
· Double insulation to the inputs of the voltage and current measurement.
· Functional insulation relative to each other, to the supply voltage, to the measuring inputs for residual current and tempera-
ture, to the digital inputs/outputs and to the analog output.
The interfaces of the connected devices require double or reinforced insulation against mains voltages (according to
IEC 61010-1: 2010).
Potential isolation and electrical safety of the multifunction channels (RCM, Temp.)
The inputs of the multifunction channels have:
· Double insulation to the inputs of the voltage and current measurement.
· No insulation to each other or to the supply voltage.
· Functional isolation to the Ethernet, RS-485 interfaces, to the digital inputs/outputs and to the analog output.
External sensors and/or transformers require double insulation relative to system components with dangerous touch voltages
(according to IEC61010-1:2010).
Potential isolation and electrical safety of the digital inputs and outputs (I/Os) and the analog output
The digital inputs and outputs as well as the analog output are equipped with:
· Double insulation to the inputs of the voltage and current measurement.
· Functional isolation relative to each other, to the supply voltage, to the Ethernet, RS-485 and multifunction channel
interfaces.