Siemens SINAMICS G130 Engineering Manual page 431

SINAMICS S120 Cabinet Modules
Engineering Information
The interfaces of the cabinet as a whole are designed to ensure that no additional auxiliary external wiring is
required. All auxiliary voltage supplies are connected to the auxiliary voltage supply system with fuse protection.
Owing to the increased power requirement of systems comprising large numbers of Cabinet Kits installed in a
Booksize Base Cabinet, a SITOP power supply unit is fitted as standard in each Booksize Base Cabinet and provides
the 24 V supply for the entire cabinet.
The 24 V auxiliary voltage supply circuit within a Base Cabinet has been designed in such a way that the failure of
individual units / Cabinet Kits will not affect other equipment. The internal auxiliary voltage supply busbar of the
Booksize units is not included in the 24 V supply circuit.
Booksize Base Cabinets with maximum equipment
With a maximum equipment complement, 6 Cabinet Kits can be mounted in the 800 mm wide Base Cabinet, and 10
Cabinet Kits in the 1200 mm wide Base Cabinet (applies to 100 mm wide Cabinet Kits in each case). The Base
Cabinets feature defined slots which are equipped in the factory according to the order data. The ordered kits are not
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