Siemens SIRIUS 3RT - Page 150

Configuration
6.13 Starting three-phase motors with reduced starting current peaks (contactor assembly for star-delta (wye-
delta) start)
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
150 Manual, 09/2017, A5E03656507120A/RS-AE/006
Contactor selection for configuring a contactor assembly for star-delta (wye-delta) start
The 3RA24 contactor assemblies have screw or spring-loaded connections and are suitable
for screw and or snap-on mounting on a TH 35 mounting rail. With the fully-wired and tested
3RA24 contactor assemblies, the auxiliary contacts included in the basic devices are freely
available.
The contactor assemblies in sizes S2 to S3 are always supplied with a mounting plate.
Table 6- 8 Screw connection
Rated data for 50 Hz
400 V AC
Size
Article number
Power [kW]
Operational
current I
e
[A]
Motor current
[A]
Line / delta con-
tactor
Star contactor
Complete assembly
5.5 12 9.5 … 13.8 S00-S00-S00 3RT2015-1.... 3RT2015-1.... 3RA2415-8XF31-1...
7.5
16
12.1 … 17
3RT2017-1....
3RT2015-1....
3RA2416-8XF31-1...
11 25 19 … 25 3RT2018-1.... 3RT2016-1.... 3RA2417-8XF31-1...
11
25
19 … 25
S0-S0-S0
3RT2024-1...0
3RT2024-1...0
3RA2423-8XF32-1...
15
32
24.1 … 34
3RT2026-1...0
3RT2024-1...0
3RA2425-8XF32-1...
18.5
40
34.5 … 40
3RT2026-1...0
3RT2024-1...0
3RA2425-8XF32-1...
22
50
31 … 43
3RT2027-1...0
3RT2026-1...0
3RA2426-8XF32-1...
22 / 30
45 / 60
31 … 43
S2-S2-S0
3RT2035-1...0
3RT2026-1...0
3RA2434-8XF32-1...
37
80
62.1 ... 77.8
3RT2035-1...0
3RT2027-1...0
3RA2435-8XF32-1...
45
86
69 ... 86
3RT2036-1...0
3RT2028-1...0
3RA2436-8XF32-1...
55
115
77.6 ... 108.6
S2-S2-S2
3RT2037-1...0
3RT2035-1...0
3RA2437-8XF32-1...
55
115
77.6 ... 108.6
S3-S3-S2
3RT2045-1...0
3RT2035-1...0
3RA2444-8XF32-1...
75
150
120.7 ... 150
3RT2045-1...0
3RT2036-1...0
3RA2445-8XF32-1...
90
160
86 ... 160
3RT2046-1...0
3RT2037-1...0
3RA2446-8XF32-1...