Active Line Connection Modules comprise a Line Connection Module, a liquid-cooled Active Interface Module and a liquid-cooled Active Line Module. They can supply motoring energy to the DC link and return regenerative energy to the line supply.

As standard, the Active Line Connection Module is positioned in the drive line-up so that the Motor Modules are arranged to the right. If Motor Modules are to be arranged to the left of the Active Line Connection Module, option M88 (DC bus system for line-side Cabinet Modules) must be ordered.

Line Connection Modules contain the line-side infeed via main circuit breaker with fuse switch disconnector or circuit breaker and establish the connection between the plant power system and the Active Line Modules. They are equipped as standard with a radio interference suppression filter according to EN 61800‑3 Category C3.

Active Line Connection Modules produce a stabilized DC voltage that remains constant regardless of fluctuations in the line voltage (the line voltage must remain within the permissible tolerances).

In the factory setting, the DC voltage is regulated to 1.5 times the rms value of the rated line voltage.

Active Line Connection Modules draw a virtually sinusoidal current from the supply system and cause virtually no line harmonics.

Active Line Connection Modules are suitable for connection to supply systems grounded at the neutral point (TN, TT) and non-grounded (IT) supply systems. The following voltages and currents are available: