Common DC bus components by SAEL can be configured as an active front-end (AFE) unit as well as smart rectifier, i.e. as regenerative braking energy unit (RBU).

In process with frequent and high energy breaking, the AFE and RBU from SAEL, allows for energy recovery into the mains network, avoiding wasting, avoiding energy ad heat with braking resistors.

Typical applications are the Winder and Unwinder machines, Cranes, Winches, Conveyors and Tunnel Boring Machines (TBMs).