Siemens SIRIUS Series

Configuration
4.1 SIRIUS 3RA6 compact starter
SIRIUS 3RA6 Compact Starter
26 System Manual, 02/2008, GWA 4NEB 560 0601-02 DS 02
Required control power supply
Depending on the version, the compact starter requires the following control power supply
(AC/DC):
● 24 V
● 42 to 70 V
● 110 to 240 V
Operating temperature
The compact starter has been designed for use with ambient temperatures ranging from
- 20 °C to + 40 °C.
Derating
Within the temperature range + 40 °C to + 60 °C, derating of the compact starter's
permissible rated current is necessary if:
● Several compact starters are installed side by side on a vertical DIN rail without any
space in between.
● Several compact starters are installed side by side in a SIRIUS 3RA6 infeed system
without any space in between.
Internal control cabinet temperatures Permissible rated current I
r max
+ 40 °C 100% of I
r max
+ 60 °C 80% of I
r max
Maximum rated current
Depending on the current setting range, the following maximum rated currents apply to the
compact starter:
Table 4-1 Maximum rated current (3RA6 compact starter)
Current setting range Max. rated current
0.1 to 0.4 A 0.4 A
0.32 to 1.25 A 1.25 A
1 to 4 A 4 A
3 to 12 A 12 A
8 to 32 A 32 A