SIEMENS
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Siemens IC 10 · 2017
Contactor Assemblies for Star-Delta (Wye-Delta) Starting
SIRIUS 3RA24 contactor assemblies for star-delta (wye-delta) starting, up to 90 kW
3
■
Technical specifications
Unless otherwise indicated, the technical specifications
correspond to those of the 3RT individual contactors
(see from page 3/19 onwards)
and 3RU2 overload relays
(see from page 7/80 onwards)
.
More information
Technical specifications,
see
FAQs,
Manuals,
see
•
System Manual "SIRIUS – System Overview",
•
Manual "SIRIUS – SIRIUS 3RT Contactors/Contactor Assemblies",
•
Application Manual "SIRIUS Controls with IE3/IE4 motors;
Type
3RA2415
3RA2416
3RA2417
3RA2423
3RA2425
3RA2426
Sizes
S00-S00-S00
S00-S00-S00
S00-S00-S00
S0-S0-S0
S0-S0-S0
S0-S0-S0
General data
Dimensions (W x H x D) with function module
• AC operation
-
Screw terminals
mm
135 x 68 x 145
135 x101 x 171
-
Spring-type terminals
mm
135 x 84 x 145
135 x114 x 171
• DC operation
-
Screw terminals
mm
135 x 68 x 145
135 x101 x 181
-
Spring-type terminals
mm
135 x 84 x 145
135 x114 x 181
Individual contactors
• Q11 line contactor
Type
3RT2015
3RT2017
3RT2018
3RT2024
3RT2026
3RT2027
• Q13 delta contactor
Type
3RT2015
3RT2017
3RT2018
3RT2024
3RT2026
3RT2027
• Q12 star contactor
Type
3RT2015
3RT2015
3RT2016
3RT2024
3RT2024
3RT2026
Mechanical endurance
Operating
cycles
3 million
Unassigned auxiliary contacts of the individual
contactors
For circuit diagrams of the control circuit,
see Manual
"SIRIUS – SIRIUS 3RT Contactors/Contactor Assemblies",
.
Short-circuit protection
Main circuit without overload relays
• Fuse links, operational class gG:
LV HRC, type 3NA; DIAZED, type 5SB; NEOZED,
type 5SE with single or double infeed
Greatest rated current of the fuse
according to IEC 60947-4-1
-
Type of coordination "1"
A
35
63
100
125
-
Type of coordination "2"
A
20
25
35
63
Auxiliary circuit
Short-circuit test
• With fuse links, operational class gG:
DIAZED, type 5SB; NEOZED, type 5SE
with short-circuit current
I
k
= 1 kA acc. to
IEC 60947-5-1
A
A
10
6 (up to
I
k
< 0.5 kA;
260 V),
If the auxiliary contact of the overload relay is connected in the contactor coil circuit.
• With miniature circuit breaker, C characteristic
with short-circuit current
I
k
= 400 A
A
A
10
6 (up to
I
k
< 0.5 kA;
260 V),
If the auxiliary contact of the overload relay is connected in the contactor coil circuit.
Short-circuit protection with overload relay
See Configuration Manual "Configuring SIRIUS Innovations –
Selection Data for Fuseless and Fused Load Feeders",
W
H
D
© Siemens AG 2016