Siemens Sinamics S120 Manual page 54

Line connection and line-side power components
3.4 Line supply connection via residual-current devices
Figure 3-3
Recommendation
SIEMENS selectively switching AC/DC-sensitive residual-current circuit-breakers according
to EN 61009-1 of the 5SM series (e.g. 5SM3646-5 or 5SM3646-5+5SW3300 with an
auxiliary disconnector (1 NC contact / 1 NO contact) for a rated current of 63 A and rated
fault current of 0.3 A (see Catalog "BETA Modular Installation Devices - ET B1")).
Note
AC or pulse-sensitive RCCBs are not suitable.
54
Connecting a residual-current operated circuit breaker
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6