Siemens SIRIUS 3RU - Overview of Combinable 3 RT Contactors

Configuration
6.2 Overload relays in motor feeders
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
Manual, 09/2016, A5E03656507420A/RS-AB/003
61
6.2.2
Overview of combinable 3RT contactors
Overload relay with contactor assemblies
Table 6- 2 3RT2 thermal overload relay with contactor assemblies
Contactors
Type
3RT201
3RT202
3RT203
3RT204
Thermal overload relays
Size
S00
S0
S2
S3
Type
Size
Current range
[A]
Power [kW]
3 / 4 /
5.5 / 7.5
5.5 / 7.5 / 11 /
15 / 18.5
15 / 18.5 / 22 /
30 / 37
37 / 45 / 55
3RU211 S00 0.11 … 16 ✓ - - -
3RU212
S0
1.8 … 40
-
✓
-
-
3RU213
S2
11 … 80
-
-
✓
-
3RU214
S3
28 ... 100
-
-
-
✓
Table 6- 3 3RT2 electronic overload relay with contactor assemblies
Contactors
Type
3RT201
3RT202
3RT203
3RT204
Electronic overload relays
Size
S00
S0
S2
S3
Type
Size
Current range
[A]
Power [kW]
3 / 4 /
5.5 / 7.5
5.5 / 7.5 / 11 /
15 / 18.5
15 / 18.5 / 22 /
30 / 37
37 / 45 / 55
3RB3.1
S00
0.1 … 16
✓
-
-
-
3RB3.2 S0 0.1 … 40 - ✓ - -
3RB3.3
S2
12.5 … 80
-
-
✓
-
3RB3.4
S3
12.5 ... 115
-
-
-
✓
Table 6- 4 3RT1 electronic overload relay with contactor assemblies
Contactors
Type
3RT105
3RT106
3RT107
Electronic overload relays
Size
S6
S10
S12
Type
Size
Current range [A]
Power [kW]
55 / 75 / 90
110 / 132 / 160
200 / 250
3RB205 / 3RB215
S6
50 … 200
✓
-
-
3RB2066 / 3RB216 S10 / S12 55 … 250 and
160 ... 630
- ✓ ✓
The configuration guide entitled "Configuring SIRIUS Modular Systems - Selection data for
load feeders in fuseless and fused designs"
(https://support.industry.siemens.com/cs/ww/en/view/39714188) provides information about
the assembly of type-tested motor feeders according to IEC / EN 60947-4-1 with type of
coordination 1 or 2.