8 3RW3 semiconductor motor control unit (soft starter) - Siemens ...

3RW3 semiconductor motor control unit
Fuse configurations
with SITOR 3NE1..-0
The following table specifies the fuse configuration (coordination type 2) for
3RW30/31 with SITOR fuses 3NE1..-0 (short-circuit and line protection);
max. short-circuit current 50 kA:
Order number
Soft starter
Table 8-18: Fuse configurations (SITOR)
Order number
of the fuse
Rated current
of the fuse
MLFB MLFB A
3RW30 14 3NE1814-0 1) 20 000
3RW30 16 3NE1815-0 1) 25 000
3RW30 24/3RW31 24 3NE1815-0 2) 25 000
3RW30 25/3RW31 25 3NE1815-0 2) 25 000
3RW30 26/3RW31 26 3NE1802-0 2) 40 000
3RW30 34 3NE1818-0 2) 63 000
3RW30 35 3NE1820-0 2) 80 000
3RW30 36 3NE1820-0 2) 80 000
3RW30 44 3NE1820-0 2) 80 000
3RW30 45 3NE1021-0 2) 100 00
3RW30 46 — 3) — —
1)Fuse coordination for max. 400 V
2)Fuse coordination for max. 500 V
3)Fuse coordination with all-range fuses not possible;
pure semiconductor protection fuses plus circuit breakers
can be used instead (see following table)
Frame size of
the fuse
SIRIUS System Manual
8-46 GWA 4NEB 430 0999-02c