SIRIUS 3RF34 solid-state switching devices
3.5 Planning/configuring
SIRIUS Innovations
332 System Manual, 01/2011, A8E56203870002-03
Information about input parameters
● "Operating mode"
Selection between a motor contactor or a reversing contactor
● "Usage region"
Selection of the application environment, selection of a design conforming to either IEC
standards or UL regulations
● "Protection"
The short-circuit protection of the solid-state switching devices (using circuit breakers or
fuses) affects the rated current.
● "Temperature unit"
Entries can be made in either degrees Celsius or degrees Fahrenheit.
● "Environment temperature"
The ambient temperature at the installation location. Temperatures above 40 °C / 104 °F
will impose restrictions on the rated current of the device.
● "Control voltage"
The control voltage selected determines the device type.
● "Altitude of site"
The installation altitude at the installation location. Altitudes higher than 1000 m above
sea level (amsl) will impose restrictions on the rated current of the device.
● Network parameters
– "Network voltage"
The "Network voltage" selection determines the device version.
– "Network frequency"
The entry is required so that the current load can be calculated correctly.
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