Active Line Connection Modules always include an Active Interface Module, which contains the associated Clean Power Filter and pre-charging circuit. The line filter that is included ensures compliance with the EMC requirements for the “second environment”.

Depending on the input current, the following versions are available:

• ≤ 800 A: Main circuit breaker with fuse switch disconnector
• > 800 A: Circuit breaker, type 3WL, with option L25 as withdrawable circuit breaker

The power rating can be increased by connecting Active Line Connection Modules in parallel. You must observe the following rules:

• Up to four identical Active Line Connection Modules can be connected in parallel.
• 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. the modules cannot be operated on different line supplies).
• 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. Monitoring is performed via the -X50 terminals of the respective Line Connection Module.
• Option M88 must be ordered.

For additional information, please refer to the SINAMICS Low Voltage Engineering Manual.