SIEMENS
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Siemens IK PI · 2015
AS-Interface
Slaves
Motor starters for use in the control cabinet
SIRIUS 3RA6 compact starters
> Infeed system for 3RA6
4
■
Overview
(continued)
Maximum rated operational current
The following maximum rated operational currents apply for the
components of the infeed system for 3RA6:
With side-by-side mounting of several expansion modules,
the maximum rated operational current from the second expan-
sion module to the end of the row is 63 A.
Proposal for upstream short-circuit protection devices
The following short-circuit data apply for the components of the
infeed system for 3RA6 compact starters.
1)
To prevent the possibility of short circuits, the cables
on the terminal block must be installed so that they are short-circuit proof
according to EN 60439-1 Section 7.5.5.1.2.
Component
Maximum
rated operational current
A
Infeed with screw connection 50/70 mm²
100
Infeed with screw connection 25/35 mm²
63
Infeed with spring-type connection 25/35 mm²
63
Expansion plug
63
Conduc-
tor
cross-
section
Inscriptions
Proposal for
upstream short-circuit
protection device
mm²
Short-circuit protection for infeed block (25/35 mm²)
with screw connection
2.5 ... 35
I
d, max
= 19 kA,
I
²
t
= 440 kA²s
3RV1041-4JA10
Short-circuit protection for infeed block (50/70 mm²)
with screw connection
2.5 ... 70
I
d, max
= approx. 22 kA
3RV1041-4MA10
Short-circuit protection for infeed block
with spring-type connection
4
I
d, max
= 9.5 kA,
I
²
t
= 85 kA²s
3RV1021-4DA10
6
I
d, max
= 12.5 kA,
I
²
t
= 140 kA²s
3RV1031-4EA10
10
I
d, max
= 15 kA,
I
²
t
= 180 kA²s
3RV1031-4HA10
16/25
I
d, max
= 19 kA,
I
²
t
= 440 kA²s
3RV1041-4JA10
Short-circuit protection for terminal block
1.5
I
d, max
= 7.5 kA
5SY...
2.5
I
d, max
= 9.5 kA
1)
4
I
d, max
= 9.5 kA
6
I
d, max
= 12.5 kA
© Siemens AG 2014