Fuse Switch Disconnector (Input Current ≤ 800 A) - Siemens SINAMICS S120 Manual

Cabinet Modules
6.1 Basic Line Connection Modules
Parallel connection of Basic Line Connection Modules to increase power rating
The following rules must be observed when connecting Basic Line Connection Modules in
parallel:
● Up to 4 identical Basic Line Connection Modules can be connected in parallel.
● Option M88 (DC busbar system for the line-side Cabinet Modules) must be installed so
that the infeed can be realized at the common DC link.
● A common Control Unit is required whenever the modules are connected in parallel.
● The parallel connection must be supplied from a common infeed point (i.e. different
supply systems are not permitted); see also SINAMICS Low Voltage Configuration
Manual.
● A derating factor of 7.5% must be taken into consideration, regardless of the number of
modules connected in parallel.
● The main contactors or circuit breakers of the respective Line Connection Modules must
close together and simultaneously.
The monitoring is realized via terminals -X50 of the particular Line Connection Module.
6.1.1.1 Fuse switch disconnector (input current ≤ 800 A)
Up to 800 A, a switch disconnector with integrated fuses and a main contactor are installed.
The contactor is controlled internally.
X50 feedback signal contact "Fuse switch disconnector" and "Main contactor"
Table 6- 2
Terminal
1
2
3
4
5
6
Max. connectable cross-section: 2.5 mm²
NC: normally-closed contact, NO: normally-open contact, COM: Center contact
1)
142
Terminal block X50 feedback signal contact "Fuse switch disconnector" and "Main con-
tactor"
Designation Technical data
1)
NO "Fuse switch disconnector" checkback contacts
Max. load current: 3 A
NC
max. Switching voltage: 250 VAC
COM
NO "Main contactor" feedback signal contacts
Max. load current: 10 A
NC
Max. Switching voltage: 250 V AC
COM
Max. contact rating: 250 VA
Required minimum load: ≥1 mA
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A