ABB DS-ARC1 Arc Fault Detection Device with RCBO Instruction Manual

This document is a multilingual instruction manual for the ABB DS-ARC1, an arc fault detection device (AFDD) integrated with an RCBO (residual current circuit breaker with overcurrent protection). It provides installation guidelines, LED indication patterns for normal operation and fault tripping (including arc faults, overvoltage, and overcurrent), testing procedures, and memory recall/clearing functions.