C) Overload Protection; D) Overtemperature Protection; E) Polarity Reversal Protection - VOLTCRAFT MSW 300 Operating Instructions Manual

c) Overload protection

The inverter switches itself off temporarily if the consumer connected to the output draws too
much power. If the power consumption is reduced, the inverter will switch on again automati-
cally.
The "Fault" LED will light up at overload. Switch the inverter off via the on/off switch and
remove the cause of the overload.

d) Overtemperature protection

The conversion of input voltage to mains voltage and the resulting conversion loss produces
heat due to the working principle. An integrated fan helps to cool the electronics of the inverter.
Depending on the power intake of the connected consumer or the ambient temperature, the
inverter may overheat.
In this case, the inverter will switch itself off. After the inverter has cooled off sufficiently, it will
switch on again.
The "Fault" LED will light up if the inverter recognises undervoltage.

e) Polarity reversal protection

If the polarity of the input is swapped when connecting, the inverter will not work and cannot
be switched on.
Always observe the correct polarity (plus/+ and minus/-) for connection.
• Red connection terminal = plus pole (+)
• Black connection terminal = minus pole (-)
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