Residual current monitor for grounded voltage system

 

DOLD residual current monitoring devices, available from ELTRON, enable effective detection of residual currents in TN and TT networks, i.e. with an earthed neutral point. They are used to increase the safety of people, installations and equipment by offering a quick response to faults and precise setting of trip thresholds.

Main features and applications

These devices detect both direct and alternating (AC) currents, as well as alternating components of DC current (type B). They are used in machine power supply systems, building infrastructure, data centres and in applications with a high proportion of converters, such as inverters and UPS power supplies.

Models available from ELTRON:

  • IL 5882 / SL 5882 – type A residual current modules for AC and DC networks, with adjustable measuring range up to 30 A, equipped with relay alarm outputs, LED indicators, test and manual reset and fault detection functions.
  • IR 5882 – version with an integrated measuring transformer, reducing installation time and ideal for complex monitoring systems.
  • IP 5883 – type B module, designed for use in demanding applications where mixed currents (AC/DC) are present, e.g. in drives with inverters. It supports ranges up to 3 A, allows adjustment of the response delay, has LED indicators and a full set of diagnostic functions.

DOLD devices are available in various housing widths – from 35 mm in compact versions to 105 mm in integrated variants – and can be mounted in DIN rail switchboards. They enable quick integration into automation systems and ensure compliance with electric shock protection standards.

 

 

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Table of available residual current monitors for networks with earthling

TypeDescriptionVoltage typeAdjustable measuring ranges (A)Relay contact at the outputResponse delay adjustmentWarning and alarm indicatorsTest keyReset keyFailure detectionEnclosure width (mm)Data Sheet
IL 5882, SL 5882Type A residual current monitorAC, DC alternating0.01 ... 10; 0.01 ... 30 ++LED+++35
IL5882_SL5882.pdf
IR 5882Type A residual current monitor with integrated AC transformerAC, DC alternating0.01 ... 10; 0.01 ... 30 ++LED+++105
IR5882.pdf
IP 5883 Type B residual current monitorAC, DC, DC alternating0.01 ... 3++LED+++70
IP5883.pdf