Glossary
SIVACON 8PS - Configuring with LX system
Configuration Manual, 10/2011, A5E02194899-02
203
Rated making capacity DIN EN 60947-1; 4.3.5.2
The current that a switching device can make in compliance with the utilisation category at
the respective rated operating voltage.
➜ Rated operating voltage
Rated frequency DIN EN 60947-1; 4.3.3
The frequency for which a switching device is designed and on which the other characteristic
data is based.
➜ Rated operating voltage; Rated uninterrupted current
Rated ultimate short-circuit breaking capacity (I
cu
) DIN EN 60947-2; 4.3.5.2.1
The maximum short-circuit current that a circuit-breaker is capable of breaking (test O - CO,
previously P - 1). After short-circuit breaking, the circuit-breaker is capable of tripping under
an overload, with increased tolerances.
Rated insulation voltage (U
i
) DIN EN 60947-1; 4.3.1.2
Voltage to which insulation tests and creepage paths apply. The highest rated operating
voltage must never be higher than the rated insulation voltage.
➜ Rated operating voltage
Rated short-circuit breaking capacity (I
cn
) DIN EN 60947-1; 4.3.6.3
The highest current that a switching device can break at rated operating voltage and
frequency without damage. It is specified as an rms value.
➜ Rated operating voltage
Rated short-circuit making capacity (I
cm
) DIN EN 60947-1; 4.3.6.2
The highest current that a switching device can make at a specific rated operating voltage
and frequency without damage. Contrary to the other characteristic data, it is specified as a
peak value.
➜ Rated operating voltage
Conditional short-circuit current, rated DIN EN 60947-1; 2.5.29
➜ Rated conditional short-circuit current (I
q
)
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