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3RA1 fuseless load feeders
SIRIUS System Manual
GWA 4NEB 430 0999-02b
5-29
General specifications
Specifications
IEC 60 947-1, EN 60 947-1 (VDE 0660 Part 100)
IEC 60 947-2, EN 60 947-2 (VDE 0660 Part 101)
IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102)
Type
Frame size
Number of poles
3RA1. 1
S00
3
3RA1. 2
S0
3
3RA1. 3
S2
3
3RA11 4
S3
3
Max. rated current
I
nmax
(= max. rated operational current
I
e
)
A
12
25
50
100
Permissible ambient temperature
°C
°C
–55 to +80 for storage/transportation
–20 to +70 for operation (above +60 °C with restrictions)
Rated operating voltage
U
e
Rated frequency
Rated insulation voltage
U
i
Rated impulse strength
U
imp
V
Hz
V
kV
690
50/60
690
6
Tripping class (CLASS)
In acc. with IEC 60 947-4-1,
EN 60 947-4-1
(VDE 0660 Part 102)
10
Rated short-circuit current
I
q
at 50/60 Hz 400 VAC
in acc. with IEC 60 947-4-1, EN 60 947-4-1 (VDE 0660 Part 102)
Coordination types in acc. with IEC 60 947-4-1, EN 60 947-4-1
(VDE 0660 Part 102)
kA
50
1
)
Power loss
P
v max
of all main conducting paths
depending on the rated current
I
n
(upper setting range)
Up to 1.25 A
1.6 to 6.3 A
8
to 12
A
2
to
6.3
A
8
to 16
A
20 to 25 A
25
to
32
A
40
A
45 to 50 A
63
A
75 to 90 A
100 A
W
W
W
W
W
W
W
W
W
W
W
W
6
7
10.5
7
9.5
13
19
28
35
29
45
60
Power input of the magnet coils with contactors
(given a cold coil and
U
s
, 50 Hz)
AC operation
DC operation
Making capacity
cos
ϕ
Holding power
cos
ϕ
Making capacity = holding power
VA
VA
W
27
0.8
4.6
0.27
3.2
61
0.82
7.8
0.24
5.4
127
0.82
13.5
0.34
11.50
270
0.68
22
0.27
15
Operating range of the magnet coils with contactors
0.8 to 1.1 x
U
s
Lower limit
at 55 °C
at 60 °C
0.8 x
U
s
0.85 x
U
s
–
–
Service life of circuit breakers
Mechanical life
Electrical life
Max. switching frequency per hour (motor startups)
Operating cycles
Operating cycles
1/h
100,000
100,000
15
50,000
50,000
15
Service life of contactors
Mechanical life
Operating cycles
30 million
10 million
Electrical life
Operating cycles
See the service life characteristic of the contactors (part 3).
Shock resistance
(sinus)
In acc. with IEC 60 068 Part 2-27
g
Up to 9.8
Up to 12.5
Up to 8
Up to 6
Degree of protection
In acc. with IEC 60 947-1
IP 20
IP 20
IP 00
terminal housing
Shock protection
In acc. with DIN VDE 0106 Part 100
Protected against
touching by fin-
gers
Phase loss sensitivity
of the circuit breaker
In acc. with IEC 60 947-4-1,
EN 60 947-4-1
(VDE 0660 Part 102)
Yes
Disconnector properties
of the circuit breaker
Main and emergency-stop
switch properties of the circuit
breaker and accessories
In acc. with IEC 60 947-2,
EN 60 947-2
(VDE 0660 Part 101)
In acc. with IEC 60 204-1,
EN 60 204-1
(VDE 0113 Part 1)
Yes
Yes, with undervoltage release to category 1
in the case of proper use
Safe isolation between the main
and auxiliary circuits
In acc. with DIN VDE 0160 Part 101
Up to 400 V
Positively driven operation with contactors
Yes
Yes, from the main contact to the auxiliary normally
closed contact
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