RMS 1S20
RMS 1S20

RMS 1S20
Arc Fault Relay

RMS 1S20 is a din rail or panel mount 2-zone arc fault relay for the protection of metal clad switchgear.

  • Compact, economic design
  • Simple panel mounting for retrofit applications
  • Two or three arc sensor inputs
  • Two high speed tripping duty arc sense output contacts
  • Push button reset
  • Continuous arc sensor supervision
  • Integrated self supervision
  • Fail alarm contact
  • 20-60 & 36-150V DC auxiliary versions