19
UMG 511
When connecting the voltage measurement, the
following must be observed:
• In order to disconnect the voltage and current,
a suitable circuit breaker is to be provided
• The circuit breaker must be positioned near to
the UMG511, identified for the user and easy
to reach.
• Only use authorised UL/IEC excess current
protection devices and circuit breakers 10A
(type C).
• The excess current protection device must
have a nominal value which is measured for
the short circuit current at the connection
point.
• Measurement voltages and measurement cur-
rents must come from the same network.
Caution!
Voltages that exceed the permitted
nominal network voltages must be
connected using a voltage conver-
ter.
c
Caution!
The UMG511 is not suitable for
measuring DC voltages.
c
Caution!
Contact with the voltage measu-
rement inputs on the UMG511 is
dangerous!
c
Caution!
The voltage measurement inputs
may not be used for voltage measu-
rement in SELV circuits (low voltage
protector).
c
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