Dold Industries Ltd

11 Hamberts Rd. Blackall Ind. Estate
South Woodham Ferrers
GB-Essex, CM3 5UW
EH 5878

Insulation Monitor

EH 5878

Contacts

Auxiliary voltage

Alarm value

Variant

  • 0031929
  • EH5878.05 AC24,42,230,400,500V 50K
Monitoring of the resistance to earth in ungrounded single- and 3-phasevoltage systems. more

Product description

Monitoring of the resistance to earth in ungrounded single- and 3-phasevoltage systems.

Technical specifications

Width: 96 mm
Response value: 50 kΩ
IMD type: AC
Nominal voltage IT system: AC 0 - 500 V
Auxiliary voltage: AC
Enclosure design: Front panel mounting
Connection for indicator: Yes
Response value type: Fixed
Type: EH 5878

Features

  • According to IEC/EN 61 557-8
  • For single- and 3-phase AC-voltage systems
  • Fixed response value RAN
  • Closed circuit operation
  • Programmable for:
  • - manual reset (bridge X5 - LT1)
  • - automatic reset (without bridge)
  • Reset button LT1
  • Test button to check the function of the device
  • External test and reset buttons can be connected
  • LED indicators
  • 1 changeover contact
  • External connection of indicating instrument possible
  • Frontside 96 x 96 mm