Siemens SINAMICS S120 Equipment Manual page 66

Line Connection Booksize
2.8 Line connection variations
Please note the following:
• It is only permissible to use a delayed tripping, selective AC/DC-sensitive residual-current
• The maximum permissible ground resistance of the "selective protection device" must be
• Parts of the electrical equipment and machine that can be touched are integrated in a
• The total length of the shielded power cables in the drive line-up (motor cables incl. line
• Only recommended line filters must be used during operation.
• Only one residual-current circuit-breaker may be connected in series (cascading is not
• Switching elements (main circuit-breakers, contactors) for connecting and disconnecting
Recommendation
SIEMENS selectively tripping AC/DC-sensitive residual-current circuit-breakers to
EN 61800-5-1, type 5SZ (e.g. 5SZ6 468–0KG00 or 5SZ6468–0KG30 with auxiliary
disconnector (1NC/1NO) for rated current 63 A, rated fault current 0.3 A) (also refer to
Catalog CA01).
Notice
AC or pulse-sensitive RCCBs are not suitable.
2-36
circuit-breakers, Type B.
observed (max. 83 Ω for residual-current circuit-breakers with a rated differential current
of 0.3 A).
protective grounding system.
supply cables from line filters to the connecting terminals of the line module) must be less
than 350 m.
possible).
the drive line-up must feature a max. 35ms delay time between closing and opening
individual main contacts.
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3