Basic Line Modules (BLM) are compact line infeeds for two-quadrant operation, i.e. without regenerative feedback.

They are used when energy does not to be fed back into the network.

If regenerative conditions occur in the drive line-up, Braking Modules must be used because they convert the excess energy into heat in braking resistors.

Basic Line Modules are available for the following voltages and power ratings:

The power ratings can be increased by connecting up to four identical Basic Line Modules in parallel.

For an infeed with the Basic Line modules, depending on the line short-circuit power, a line reactor must be provided at the connection point. For additional information, please refer to the SINAMICS Low Voltage Engineering Manual. This reactor is available as standard in the Line Connection Module. However, it can be omitted if it is not required (option L22).