The operation control device (10) has a storage capacitor (36) for supplying the emergency light (43) with electrical power. A charging circuit (35) is connected to the storage capacitor through a converter (20) which is galvanic-separated to the mains vol...

The controller (5) has an input circuit (8) divided into a primary circuit (10) and a secondary circuit (11). The primary circuit is attached to an alternating current voltage source (9), and the secondary circuit is galvanically separated from the primary...