Fused Switch Disconnector (Input Current ≤ 700 A) - Siemens SINAMICS S120 Manual

Parallel connection of Active Line Connection Modules to increase the power rating
The following rules must be observed when connecting Active Line Connection Modules in
parallel:
● Up to 4 identical Active 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 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.
6.2.1.1 Fused switch disconnector (input current ≤ 700 A)
Up to 700 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- 12
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)
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
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
6.2 Active Line Connection Modules
161