Siemens SINAMICS S120 Equipment Manual page 203

NOTICE
If a drive line-up is switched off by means of the line disconnecting device, the voltage at
terminals 3 (EP +24 V) and 4 (EP M) must be interrupted beforehand. This can be achieved
through e.g. an auxiliary contact.
Booksize power units
Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6
3.4 Basic Line Modules with internal air cooling
Line Modules Booksize
203