Different versions exist depending on the input current:

• Units ≤ 800 A are equipped with a main circuit breaker with a fuse switch disconnector
• Units > 800 A are equipped with a fixed-mounted circuit breaker (draw-out circuit breaker is available as an option)

When Line Connection Modules are ordered, the type of Line Module used must be specified:

• For Basic Line Modules: Option L43
• For Smart Line Modules: Option L44
• For Active Line Modules: Option L42

When using a Basic Line Module, a reactor is included in the scope of delivery of the Line Connection Module, and when required, can be deselected (option L22).
For additional information, please refer to the SINAMICS Low Voltage Engineering Manual.

Connection example: Line Connection Module for units ≤ 800 A to connect to Basic Line Modules, option L43, option main contactor, order code L13

Connection example: Line Connection Module for units > 800 A, < 2000 A to connect to Basic Line Modules, option L43

For input currents ≥ 2000 A, additional options are available:

• Grounding switch upstream of main circuit breaker: Option L46
• Current transformer upstream of main circuit breaker: Option L41
• Grounding switch downstream of main circuit breaker: Option L47

Connection example: Line Connection Module ≥ 2000 A

When Basic Line Modules that are fed via a common Line Connection Module are connected in parallel, line reactors are generally required. These are installed in the Line Connection Module.

Connection example: Line Connection Module ≥ 2000 A for connection to Basic Line Modules, option L43

Connection example: Line Connection Module ≥ 2000 A for connection to Active Line Modules in parallel connection, option L42