Fronius Galvo 1.5 Installation Instructions Manual page 19

NOTE!
Local regulations, the distribution system operator or other factors may require a re-
sidual current protective device (RCD) in the mains line.
For this situation, a type A residual current protective device is generally adequate. In par-
ticular cases, and depending on local factors, however, the type A residual current protec-
tive device may trip at the wrong time.
For this reason, Fronius recommends that an RCD suitable for frequency converters be
used.
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