ABB 2CSA255103R1105 DS-ARC1 B10 A30 1P+N 10A 7.5kA Arc Fault Detection Device (AFDD)

The ABB 2CSA255103R1105 is a DS-ARC1 B10 A30 arc fault detection device with an integrated RCBO, rated 1P+N, 10 A, curve B, 30 mA Type A residual current and 7.5 kA breaking capacity. In three DIN-rail modules it combines overcurrent, earth-fault and series/parallel arc-fault protection for one final circuit, with the neutral terminal on the right.

Technical Specifications

Certifications & Standards

• IEC/EN 62606
• IEC/EN 61009-1
• IEC/EN 61009-2-1

Selection Notes

The B curve trips magnetically between 3 and 5 times In, so at 10 A it suits lighting and socket-outlet circuits with limited inrush rather than motor loads. Among the B-curve DS-ARC1 devices, this 10 A rating sits mid-range: circuits needing more headroom should move up to the 13, 16 or 20 A version in the same curve, while a lighter circuit can use the 6 A version. Where the downstream load includes small motors or transformers that would nuisance-trip a B curve, the C-curve DS-ARC1 at the same current is the alternative.