Fused selection tables up to 690 V
5.11 Contactor assemblies for star-delta (wye-delta) start + 3UF7 solid-state overload relay and 3RT20 contactor
Configuring SIRIUS Innovations
Configuration Manual, 04/2010, A8E56203880102-02
89
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)
Overload relay Line
contactor / delta
contactor
Star contactor Fuse links
1)
Type of coordination
2)
Standard
output
kW
Motor
current
A
MLFB Setting
range
A
MLFB MLFB
1 2
Size S00
0,75 1,9 0,3 ... 3 3RT2015-1AP01 3RT2015-1AP01 35 20
1,1 2,7 0,3 ... 3 3RT2015-1AP01 3RT2015-1AP01 35 20
1,5 3,5
3UF7100-1AA00-0/
3RB2906-2BG1
0,3 ... 3 3RT2015-1AP01 3RT2015-1AP01 35 20
2,2 5 2,4 ... 25 3RT2015-1AP01 3RT2015-1AP01 35 20
3 6,5 2,4 ... 25 3RT2015-1AP01 3RT2015-1AP01 35 20
4 8,5 2,4 ... 25 3RT2015-1AP01 3RT2015-1AP01 35 20
5,5 11,5 2,4 ... 25 3RT2015-1AP01 3RT2015-1AP01 35 20
7,5 15,5 2,4 ... 25 3RT2017-1AP01 3RT2015-1AP01 50 25
11 22
3UF7101-1AA00-0/
3RB2906-2DG1
2,4 ... 25 3RT2018-1AP01 3RT2016-1AP01 50 25
Size S0
7,5 15,5 2,4 ... 25 3RT2024-1AP01 3RT2024-1AP01 63 25
11 22 2,4 ... 25 3RT2024-1AP01 3RT2024-1AP01 63 25
15 29 2,4 ... 25 3RT2026-1AP01 3RT2024-1AP01 100 35
18,5 35 2,4 ... 25 3RT2026-1AP01 3RT2024-1AP01 100 35
22 41
3UF7101-1AA00-0/
3RB2906-2DG1
2,4 ... 25 3RT2027-1AP01 3RT2026-1AP01 125 50
1)
Please take account of the operating voltage
2)
Assignment and short-circuit protective devices acc. to DIN EN 60947-4-1
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.
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