Weidmueller LADEGERAET EPG

"Ladegerät EPG" is German for "EPG charger."  EPG likely refers to a specific battery type, a device, or a system.  Therefore, a "Ladegerät EPG" is a charger specifically designed for that EPG battery, device, or system.  Without knowing what EPG stands for in this context, it's difficult to be more specific.  It could be a charger for anything from industrial batteries to electronic devices, depending on the context.