Solid-State Switching Devices for Resistive Loads Solid-State Contactors 3RF24 solid-state contactors, three-phase Fused version with semiconductor protection (similar to type of coordination "2") 1) The semiconductor protection for the 3RF24 controls can be used with different protective devices. Siemens recommends the use of special SITOR semiconductor fuses. The table below lists the maximum permissible fuses for each 3RF24 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.
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) These fuses have a smaller rated current than the solid-state contactors. 37 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 Operational voltage U up to 460 V (+10 %) e 3RF24 10-.A... 3RF24 20-.A... 3RF24 30-.A... 3RF24 40-.A... 3RF24 50-.A...
3NE1 813-0 5SE1 310 3NE8 015-1 3NC1 012 3NC1 415 3NC2 220 3NE1 814-0 5SE1 320 3NE8 015-1 3NC1 025 3NC1 425 3NC2 225 3NE1 803-0 5SE1 335 3NE8 003-1 3NC1 032 3NC1 432 3NC2 232 3NE1 802-0 5SE1 350 3NE8 017-1 -- 3NC1 450 3NC2 250 3NE1 817-0 5SE1 350 3NE8 018-1 -- 3NC1 450 3NC2 263 Operational voltage U up to 600 V (+10 %) e 3RF24 10-.A... 3RF24 20-.A... 3RF24 30-.A... 3RF24 40-.A... 3RF24 50-.A... 3NE1 813-0 -- 3NE8 015-1 3NC1 012 3NC1 415 3NC2 220 3NE1 814-0 -- 3NE8 015-1 3NC1 025 3NC1 425 3NC2 225 3NE1 803-0 -- 3NE8 003-1 3NC1 032 3NC1 432 3NC2 232 3NE1 802-0 -- 3NE8 017-1 -- 3NC1 450 3NC2 250 3NE1 817-0 -- 3NE8 018-1 -- 3NC1 450 3NC2 263 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 Operational voltage U up to 460 V (+10 %) e 3RF24 10-.AB.. 3RF24 10-.AC.. 3RF24 20-.A... 3RF24 30-.A... 3RF24 40-.A... 3RF24 50-.A... 3NA3 8013) 3NW6 001-13) 3NW6 101-13) -- 5SB1 313) 3NA3 803 3NW6 001-13) 3NW6 101-13) -- 5SB1 61 3NA3 8053) 3NW6 005-13) 3NW6 105-13) 3NW6 205-13) 5SB1 81 3NA3 812 -- 3NW6 112-1 -- 5SB3 11 3NA3 8123) -- 3NW6 112-13) 3NW6 210-13) 5SB3 21 3NA3 8123) -- -- 3NW6 210-13) 5SB3 213)