For time switches, if the time is lost during a power cut, the internal lithium battery may need replacing.
The following features are typical for digital time switches in this series, such as the Hager EGN103
For time switches, if the time is lost during a power cut, the internal lithium battery may need replacing.
The following features are typical for digital time switches in this series, such as the Hager EGN103 hager controls bp 10140 manual