Dold Italia S.r.l.

Via Privata Passo Pordoi, 5
20139 Milano
Italia
SL 5881

Insulation monitor

SL 5881

Contacts

Nominal voltage

Auxiliary voltage

Alarm value

Time delay

Approvals and Markings

Variant

  • 0054627
  • SL5881.12 DC12-280V UH AC220-240V
The insulation monitor IL 5881 of the series VARIMETER IMD monitors the insulation resistance... altro

Descrizione del prodotto

The insulation monitor IL 5881 of the series VARIMETER IMD monitors the insulation resistance of non-earthed DC systems (IT-systems) with nominal voltage up to DC 12 ... 280 V. The supply voltage (auxiliary voltage) is taken from the monitored system. The device has LEDs to indicate the operating status. The response value can be set in a user-friendly way on the front of the device via a potentiometer.

Specifiche tecniche

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
Earth fault indicator: Yes
Response value type: Adjustable
Enclosure design: Switch cabinet
Type: SL 5881

Vorteile / Kundennutzen

  • Preventive fire and system protection
  • 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)
  • Easy adjustment of response value
  • Selective ground fault indication for L+ and L- allows fast fault finding

Merkmale

  • With reference to IEC/EN 61557-8 (see also section "Notes")
  • 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 43880
    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