E. Dold & Söhne GmbH & Co. KG

Tel.: +49 7723 654-0
E-Mail: dold-relays@dold.com

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Tel.: +49 7723 654-454
E-Mail: ab@dold.com

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SL 5881

Insulation monitor

SL 5881

Contacts

Nominal voltage

Auxiliary voltage

Alarm value

Time delay

Variant

  • 0054627
  • SL5881.12 DC12-280V UH AC220-240V
Monitoring of insulation resistance of ungrounded DC-voltage systems to earth. For... more

Product description

  • Monitoring of insulation resistance of ungrounded DC-voltage systems to earth.
  • For industrial and railway applications

Technical specifications

Width: 35 mm
Response value: 5 - 500 kΩ
IMD type: DC
Nominal voltage IT system: DC 12 - 280, DC 24 - 500 V
Auxiliary voltage: Without, AC, DC
Enclosure design: Switch cabinet
Earth fault indicator: Yes
Response value type: Adjustable
Type: SL 5881

Features

  • With reference to IEC/EN 61 557-8
  • For DC voltage systems up to 12 ... 280 V
  • Wide voltage range of measuring input UN DC 12 ... 280 V (on request DC 24 ... 500 V with separate auxiliary supply, Measuring range 20 ... 500 kΩ)
  • Adjustable tripping value RAL of 5 ... 200 kΩ or 10 ... 500 kΩ
  • Selective ground fault indication for L+ and L- allows fast fault finding
  • Without auxiliary supply
  • De-energized on trip
  • 2 changeover contacts
  • Automatic or manual reset, programmable
  • With test and reset buttons
  • Connection for external test and reset button possible
  • Galvanic separated AC or DC auxiliary supply available as option
  • Adjustable time delay as option
  • 2 models available:
    IL 5881: 61 mm deep with terminals near to the bottom to be mounted in consumer units or industrial distribution systems according to DIN 43 880
    SL 5881: 98 mm deep with terminals near to the top to be mounted in cabinets with mounting plate and cable ducts
  • DIN rail or screw mounting
  • 35 mm width