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Rated powers
The pre-assembled feeders are dimensioned for the following powers:
Assembly
Direct-on-line starter
with link module 7.5 kW (14 A) at
T
a
7.5 kW (16 A) at
T
a
Separately wired
7.5 kW (16 A)
Reversing starter
with link module 7.5 kW (14 A) at
T
a
7.5 kW (16 A) at
T
a
Separately wired
7.5 kW (16 A)
Observe the installation guidelines (Page 35) when installing a load feeder with a link
1)
module.
Control supply voltages of load feeders
The contactors can be ordered with different rated control supply voltages as appropriate for the
application area of the fuseless load feeders.
3.3
Applications
Fuseless load feeders can be used anywhere in industry where fuse, contactor, and overload
relay combinations were previously used. The increased functionality of the motor starter
protector (unlike a fuse combination, it can be used as an EMERGENCY OFF and as a
disconnector) means that a fuseless load feeder is capable of solving numerous applications
easily.
3.4
Application environment
3RA2 load feeders are climate-proof. They are designed for use in enclosed spaces in which no
severe operating conditions prevail (e.g. dust, caustic vapors, hazardous gases).
If they are to be installed in dusty or damp rooms, suitable enclosures must be provided.
SIRIUS 3RA Load Feeders
Equipment Manual, 02/2022, A5E03656507520A/RS-AC/004
S00
15 kW (29 A) at
60 °C
T
1)
a
15 kW (32 A) at
40 °C
T
1)
a
18.5 kW (38 A)
15 kW (29 A) at
60 °C
T
1)
a
15 kW (32 A) at
40 °C
T
1)
a
18.5 kW (38 A)
S0
37 kW (65 A) at
60 °C
T
1)
a
40 °C
1)
37 kW (80 A)
37 kW (65 A) at
60 °C
T
1)
a
40 °C
1)
37 kW (80 A)
3.4 Application environment
S2
45 kW (87 A) at
60 °C
T
1)
a
55 kW (100 A) at
T
a
55 kW (100 A)
45 kW (87 A) at
60 °C
T
1)
a
55 kW (100 A) at
T
a
55 kW (100 A)
Product description
S3
60 °C
1)
40 °C
1)
60 °C
1)
40 °C
1)
21
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