Bosch BGS4 SERIES RUNN'N Operating Instructions Manual page 8

Safety information
! Please note
The mains socket must be protected by at least a 16 amp cir-
cuit breaker.
If a circuit breaker is tripped when you switch on the vacuum
cleaner, this may be because other electrical appliances which
have a high current draw are connected to the same power cir-
cuit.
To prevent the circuit breaker from tripping, select the lowest
power setting before switching the appliance on, and increase
the power only once it is running.
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