Short-Circuit Protection: Soft Starter + 3Ru2 Thermal Overload Relay - Siemens SIRIUS Configuration Manual

5.7

Short-circuit protection: Soft starter + 3RU2 thermal overload relay

Short-circuit protection with fuses for motor feeders with 3RW30 soft starter and 3RU21 thermal
overload relay up to 400 V / 65 kA, type of coordination 1 and 2
Table 5- 13 Fuse links according to IEC 60947 operating class gG,
(NH DIAZED, NEOZED; type 3NA, 5SB, 5SE)
Overload relay
MLFB Setting range
Size S00
3RU2116-1CB0 1,8 ... 2,5
3RU2116-1DB0 2,2 ... 3,2
3RU2116-1EB0 2,8 ... 4,0
3RU2116-1FB0 3,5 ... 5,0
3RU2116-1GB0 4,5 ... 6,3
3RU2116-1HB0 5,5 ... 8,0
3RU2116-1JB0 7,0 ... 10
3RU2116-1KB0 9,0 ... 12,5
3RU2116-4AB0 11 ... 16
Size S0
3RU2126-4BB0 14 ... 20
3RU2126-4CB0 17 ... 22
3RU2126-4DB0 20 ... 25
3RU2126-4NB0 23 ... 28
3RU2126-4EB0 27 ... 32
3RU2126-4PB0 30 ... 36
3RU2126-4FB0 34 ... 40
Please take account of the operating voltage
1)
Assignment and short-circuit protective devices acc. to DIN EN 60947-4-1
2)
Configuring SIRIUS Innovations
Configuration Manual, 04/2010, A8E56203880102-02
5.7 Short-circuit protection: Soft starter + 3RU2 thermal overload relay
Contactor
MLFB kW
3RT2015-1.. 3
3RT2015-1.. 3
3RT2015-1.. 3
3RT2015-1.. 3
3RT2015-1.. 3
3RT2016-1.. 4
3RT2016-1.. 4
3RT2017-1.. 5,5
3RT2018-1.. 7,5
3RT2026-1.. 11
3RT2026-1.. 11
3RT2026-1.. 11
3RT2027-1.. 15
3RT2027-1.. 15
3RT2028-1.. 18,5
3RT2028-1.. 18,5
Fused selection tables up to 690 V
Soft starter
MLFB kW
3RW3013 1,5
3RW3013 1,5
3RW3013 1,5
3RW3014 3
3RW3014 3
3RW3016 4
3RW3016 4
3RW3017 5,5
3RW3018 7,5
3RW3026 11
3RW3026 11
3RW3026 11
3RW3027 15
3RW3027 15
3RW3028 18,5
3RW3028 18,5
Fuse links
1)
Type of coordination
2)
1 2
10 16
10 16
10 16
16 16
16 16
20 16
20 16
25 16
35 20
63 35
63 35
63 35
80 80
80 80
80 80
80 80
85