Solid-State Switching Devices for Resistive Loads Solid-State Contactors 3RF23 solid-state contactors, single-phase Fused version with semiconductor protection (similar to type of coordination "2") 1) The semiconductor protection for the SIRIUS controls can be used with different protective devices. This allows protection by means of LV HRC fuses of gG operational class or miniature cir- cuit breakers. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum per- missible fuses for each SIRIUS control. If a fuse is used with a higher rated current than specified, semi- conductor protection is no longer guaranteed.
However, smaller fuses with a lower rated current for the load can be used without problems. For protective devices with gG operational class and for SITOR 3NE1 all-range fuses, the minimum cross-sections for the conductor to be connected must be taken into account. Suitable fuse holders, fuse bases and controls can be found in Catalog LV 1, Chapter 19. 1) Type of coordination "2" according to EN 60947-4-1: In the event of a short-circuit, the controls in the load feeder must not endanger persons or the installation. They must be suitable for further operation. For fused configurations, the protective device must be replaced. 2) For use only with operational voltage U e up to 400 V.
3) For use only with operational voltage U e up to 506 V. 4) These fuses have a smaller rated current than the solid-state contactors. 29 Siemens · 2009 Order No. All-range fuses Semiconductor fuses/partial-range fuses LV HRC design Cylindrical design LV HRC design Cylindrical design gR/SITOR gR/NEOZED2) aR/SITOR aR/SITOR aR/SITOR aR/SITOR 3NE1 SILIZED 5SE1 3NE8 10 mm x 38 mm 3NC1 0 14 mm x 51 mm 3NC1 4 22 mm x 58 mm 3NC2 2 3RF23 1.-..... 3NE1813-0 5SE1 316 3NE8 015-1 3NC1 010 3NC1 410 3NC2 220 3RF23 2.-..... 3NE1814-0 5SE1 325 3NE8 015-1 3NC1 020 3NC1 420 3NC2 220 3RF23 3.-..... 3NE1803-0 5SE1 335 3NE8 003-1 3NC1 032 3NC1 432 3NC2 232 3RF23 4.-.....
3NE1802-0 5SE1 350 3NE8 017-1 -- 3NC1 440 3NC2 240 3RF23 5.-..... 3NE1817-0 5SE1 363 3NE8 018-1 -- 3NC1 450 3NC2 250 3RF23 7.-....2 3RF23 7.-....4 3RF23 7.-....53) 3RF23 7.-....6 3NE1820-0 -- 3NE8 020-1 -- -- 3NC2 280 3NE1020-2 -- 3NE8 020-1 -- -- 3NC2 280 3NE1020-2 -- 3NE8 020-1 -- -- 3NC2 280 3NE1020-2 -- 3NE8 020-1 -- -- 3NC2 280 3RF23 9.-....2 3RF23 9.-....4 3RF23 9.-....53) 3RF23 9.-....6 3NE1021-2 -- 3NE8 021-1 -- -- 3NC2 200 3NE1021-2 -- 3NE8 021-1 -- -- 3NC2 2804) 3NE1021-2 -- 3NE8 021-1 -- -- 3NC2 2804) 3NE1020-24) -- 3NE8 021-1 -- -- 3NC2 2804) Order No.
Cable and line protection fuses LV HRC design Cylindrical design DIAZED gG gG gG gG quick 3NA6 10 mm x 38 mm 3NW6 0 14 mm x 51 mm 3NW6 1 22 mm x 58 mm 3NW6 2 5SB 3RF23 1.-....2 3RF23 1.-....4 3RF23 1.-....53) 3RF23 1.-....6 3NA6 803 3NW6 001-14) 3NW6 101-14) -- 5SB1 41 3NA6 801 3NW6 001-14) 3NW6 101-14) -- 5SB1 41 3NA6 801 3NW6 001-14) 3NW6 101-13 -- 5SB1 41 3NA6 803-6 -- -- -- -- 3RF23 2.-....2 3RF23 2.-....4 3RF23 2.-....53) 3RF23 2.-....6 3NA6 807 3NW6 007-14) 3NW6 107-1 3NW6 207-1 5SB1 71 3NA6 807 3NW6 005-14) 3NW6 105-14) 3NW6 205-14) 5SB1 71 3NA6 807 3NW6 005-14) 3NW6 105-14) 3NW6 205-14) 5SB1 71 3NA6 807-6 -- -- -- -- 3RF23 3.-....2 3RF23 3.-....4 3RF23 3.-....53) 3RF23 3.-....6 3NA6 8104) -- 3NW6 107-14) 3NW6 207-1 5SB3 11 3NA6 8074) -- 3NW6 105-14) 3NW6 205-14) 5SB3 11 3NA6 8074) -- 3NW6 105-14) 3NW6 205-14) 5SB3 11 3NA6 807-64) -- -- -- -- 3RF23 4.-....2 3RF23 4.-....4 3RF23 4.-....53) 3RF23 4.-....6 3NA6 817 -- 3NW6 117-1 3NW6 217-1 5SB3 21 3NA6 8124) -- 3NW6 112-14) 3NW6 212-14) 5SB3 21 3NA6 8124) -- 3NW6 112-14) 3NW6 212-14) 5SB3 21 -- -- -- -- -- 3RF23 5.-....2 3RF23 5.-....4 3RF23 5.-....53) 3RF23 5.-....6 -- -- -- 3NW6 217-14) 5SB3 21 -- -- -- -- 5SB3 21 -- -- -- -- 5SB3 21 -- -- -- -- -- 3RF23 7.-....2 3RF23 7.-....4 3RF23 7.-....53) 3RF23 7.-....6 -- -- -- -- 5SB3 214) -- -- -- -- 5SB3 214) -- -- -- -- 5SB3 214) -- -- -- -- -- 3RF23 9.-....2 3RF23 9.-....4 3RF23 9.-....53) 3RF23 9.-....6 -- -- -- -- 5SB3 314) -- -- -- -- 5SB3 214) -- -- -- -- 5SB3 214) -- -- -- -- --