Contactor Assemblies For Star-Delta (Wye-Delta) Start + 3Uf7 Solid-State Overload Relay And 3Rt20 Contactor - Siemens SIRIUS Configuration Manual

5.11 Contactor assemblies for star-delta (wye-delta) start + 3UF7 solid-state overload relay and 3RT20 contactor

5.11 Contactor assemblies for star-delta (wye-delta) start + 3UF7 solid-
state overload relay and 3RT20 contactor
Short-circuit protection with fuses for contactor assemblies for star-delta (wye-delta) start with 3UF7
solid-state overload relay and 3RT20 contactor up to 400 V / 65 kA, CLASS 10, type of coordination 1
and 2
Table 5- 17 Fuse links according to IEC 60947 operating class gG,
(NH DIAZED, NEOZED; type 3NA, 5SB, 5SE)
Standard three-phase
motor
4-pole at 400 V AC
2)
Standard Motor
output current
kW A
Size S00
0,75 1,9
1,1 2,7
1,5 3,5
2,2 5
3 6,5
4 8,5
5,5 11,5
7,5 15,5
11 22
Size S0
7,5 15,5
11 22
15 29
18,5 35
22 41
Please take account of the operating voltage
1)
Assignment and short-circuit protective devices acc. to DIN EN 60947-4-1
2)
Note
The specified maximum fuse only provides short-circuit protection in the case of fuse values
where line overload protection can only be achieved with a larger conductor cross-section
than can be connected to the device. When this fuse is used, the line overload protection in
accordance with VDE 0100 must be ensured at another point e.g. by means of an overload
relay.
Configuring SIRIUS Innovations
Configuration Manual, 04/2010, A8E56203880102-02
Overload relay
MLFB Setting
range
A
3UF7100-1AA00-0/ 0,3 ... 3
3RB2906-2BG1
0,3 ... 3
0,3 ... 3
3UF7101-1AA00-0/ 2,4 ... 25
3RB2906-2DG1
2,4 ... 25
2,4 ... 25
2,4 ... 25
2,4 ... 25
2,4 ... 25
3UF7101-1AA00-0/ 2,4 ... 25
3RB2906-2DG1
2,4 ... 25
2,4 ... 25
2,4 ... 25
2,4 ... 25
Fused selection tables up to 690 V
Line Star contactor
contactor / delta
contactor
MLFB MLFB
3RT2015-1AP01 3RT2015-1AP01
3RT2015-1AP01 3RT2015-1AP01
3RT2015-1AP01 3RT2015-1AP01
3RT2015-1AP01 3RT2015-1AP01
3RT2015-1AP01 3RT2015-1AP01
3RT2015-1AP01 3RT2015-1AP01
3RT2015-1AP01 3RT2015-1AP01
3RT2017-1AP01 3RT2015-1AP01
3RT2018-1AP01 3RT2016-1AP01
3RT2024-1AP01 3RT2024-1AP01
3RT2024-1AP01 3RT2024-1AP01
3RT2026-1AP01 3RT2024-1AP01
3RT2026-1AP01 3RT2024-1AP01
3RT2027-1AP01 3RT2026-1AP01
Fuse links
1)
Type of coordination
2)
1 2
35 20
35 20
35 20
35 20
35 20
35 20
35 20
50 25
50 25
63 25
63 25
100 35
100 35
125 50
89