Technical data
6.1 Input
SITOP expansion modules
88 Equipment Manual, 09.2022, A5E36605235-2-76
6.1.3 Inrush current limiter
Rated input voltage Uin rated
Maximum input current Iin
tion/fusing in the line feeder
cable (IEC 898)
Generally, the protective element to be
connected upstream can be dimensioned
independent of the tripping characteristics,
just above the sum of the rated currents of
the connected loads. It is not permissible
that the rated current of the upstream
protective element exceeds 10 A! Please
also refer to the operating instructions for
the connected device!
For rated input voltages of 120 V and
230 V, generally the miniature circuit
breaker can now be dimensioned inde-
pendent of the tripping characteristics, just
above the sum of the rated currents of the
connected loads. For rated input voltages of
400 V or 480 V, for characteristic B, the
miniature circuit breaker should be dimen-
sioned as a minimum with 5 A and for
characteristic C, with 3 A. The rated current
of the miniature circuit breaker should not
exceed 10 A! Please also refer to the operat-
ing instructions for the connected device!