Semiconductor soft starter 3RW3 Fuse design with SITOR fuses 3NE1..-0 The following table shows the fuse design (degree of protection 2) for 3RW30/31 with SITOR fuses 3NE1..-0 (short-circuit and line protection); max. short-circuit current 50 kA: Tabelle 8-23:
Fuse design (SITOR) 1 fuse coordination for up to 400 V 2 fuse coordination for up to 500 V 3 fuse coordination for all-range fuses not possible; it may be necessary) to take recourse to pure semiconductor fuses plus circuit-breakers) Fuse design with SITOR fuses 3NE8 The following table shows the fuse design (type of coordination 2) for 3RW30/31 with SITOR fuses 3NE8 (semiconductor protection by the fuse; line and overload protection by the circuit-breaker); Max. short-circuit cur- rent 50 kA: Tabelle 8-24:
Fuse design (SITOR) 1 coordination with pure semiconductor fuses not possible; it may be necessary to take recourse to all-range 3NE1..-0 (see table above) 2 selection and adjustment of the circuit-breaker are based on the motor current 3 pay attention to the qantity unit 8-46 Stand 08/99 Soft starter order number Fuse order number Rated cur- rent of fuse Size of fuse MLFB MLFB A 3RW3014 3NE1814-01) 20 000 3RW3016 3NE1815-01) 25 000 3RW3024/3RW3124 3NE1815-02) 25 000 3RW3025/3RW3125 3NE1815-02) 25 000 3RW3026/3RW3126 3NE1802-02) 40 000 3RW3034 3NE1818-02) 63 000 3RW3035 3NE1820-02) 80 000 3RW3036 3NE1820-02) 80 000 3RW3044 3NE1820-02) 80 000 3RW3045 3NE1021-02) 100 00 3RW3046 --3) -- -- Soft starter order number Fuse order number Rated cur- rent of fuse Size of fuse Circuit- breaker order 2) number Connection module 3RW - 3RV MLFB MLFB A Gr.
MLFB MLFB3) 3RW3014 3NE8003 35 00 3RV1011 3RA1911-1A 3RW3016 3NE8003 35 00 3RV1011 3RA1911-1A 3RW3024/3RW3124 3NE8003 35 00 3RV1021 3RA1921-1A 3RW3025/3RW3125 3NE8003 35 00 3RV1021 3RA1921-1A 3RW3026/3RW3126 --1) -- -- -- -- 3RW3034 3NE8022 125 00 3RV1031 3RA1931-1A 3RW3035 3NE8024 160 00 3RV1031 3RA1931-1A 3RW3036 3NE8024 160 00 3RV1031 3RA1931-1A 3RW3044 3NE8024 160 00 3RV1041 3RA1941-1A 3RW3045 3NE8024 160 00 3RV1041 3RA1941-1A 3RW3046 3NE8024 160 00 3RV1041 3RA1941-1A