Fused selection tables up to 690 V
5.9 Short-circuit protection: Motor feeders with 3RW3 + 3RT + 3RB30/3RB31
Configuring SIRIUS Innovations
Configuration Manual, 04/2010, A8E56203880102-02
87
5.9 Short-circuit protection: Motor feeders with 3RW3 + 3RT +
3RB30/3RB31
Short-circuit protection with fuses for motor feeders with 3RW30 soft starter and 3RB30 / 3RB31
solid-state overload relay up to 480 V / 65 kA, type of coordination 1 and 2
Table 5- 15 Fuse links according to IEC 60947 operating class gG,
(SITOR; type 3NA, 3NE)
Current carrying
capacity
Fuse links
1)
Overload relay Contactor Soft starter
I
e
at 400 V and Type of coordination
2)
MLFB Setting range MLFB kW MLFB kW 40 °C 50 °C 60 °C 1 2
Size S00
3RT2015 3,0 3RW3013 1,5 3,6 3,3 3,0 10 16 3RB3016-
1PB0
1 ... 4
3RT2016 4,0 3RW3013 1,5 3,6 3,3 3,0 10 16
3RT2015 3,0 3RW3014 3,0 6,5 6,0 5,5 16 16
3RT2016 4,0 3RW3014 3,0 6,5 6,0 5,5 16 16
3RB3016-
1SB0
3 ... 12
3RT2017 5,5 3RW3016 4,0 9,0 8,0 7,0 20 16
3RT2017 5,5 3RW3017 5,5 12,5 12,0 11,0 25 16 3RB3016-
1TB0
4 ... 16
3RT2018 7,5 3RW3018 7,5 16,0 16,0 14,0 35 20
Size S0
3RT2025 7,5 3RW3026 11,0 17,0 17,0 17,0 63 35
3RT2026 11,0 3RW3026 11,0 25,0 23,0 21,0 63 35
3RB3026-
1QB0
6 ... 25
3RT2027 15,0 3RW3027 15,0 25,0 25,0 25,0 80 80
3RT2025 7,5 3RW3026 11,0 17,0 17,0 17,0 63 35
3RT2026 11,0 3RW3026 11,0 25,0 23,0 21,0 63 35
3RT2027 15,0 3RW3027 15,0 32,0 29,0 26,0 80 80
3RB3026-
1VB0
10 ... 40
3RT2028 18,5 3RW3028 18,5 38,0 34,0 31,0 80 80
1)
Please take account of the operating voltage
2)
Assignment and short-circuit protective devices acc. to DIN EN 60947-4-1
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