Arrangement for controlling an electrical load especially door drive, has switch in transformer primary circuit to control power drawn by load and voltage required to supply control circuit in standby mode

摘要

The arrangement has a control circuit (12) connected to the secondary of a transformer (8) to receive power and a switching element (14) connected in the primary circuit of the transformer and controlled by the control circuit to control the power drawn by the load (2) and to control the voltage required to supply the control circuit in standby mode.