Grundfos MAGNA3 Instructions Manual page 10

WARNING
Electric shock
Death or serious personal injury
- Connect the pump to an
- Use earthing or neutralisation
- If a plug-connected pump is
10
external main switch with a
minimum contact gap of 3 mm in
all poles.
for protection against indirect
contact.
connected to an electric
installation where an electrical
circuit breaker (voltage sensing
ELCB, residual-current device
RCD or residual-current circuit
device RCCB) is used as an
additional protection, this circuit
breaker must be marked with
the first or both of the symbols
shown below.
If the pump is
terminal-connected, the circuit
breaker must be marked with
both of the symbols below.