VARIMETER RCM Residual current monitor RN 5883 Reliably detect fault currents The type B (sensitive to all types of current) residual current monitor RN 5883 from DOLD's VARIMETER RCM family detects fault currents with DC or AC components in earthed networks. Here, the differential current measurement is implemented via the ND 5015 external differential current transformer. With an installation depth of 71 mm, the RN 5883 is also suitable for use in installation consumer units and industrial cabinets. Residual current monitors (RCMs) measure and monitor differential currents or fault currents in earthed power supply systems. They are installed in systems in which a message rather than a shut-down is to be initiated in the event of a fault. In comparison to residual current breakers (or residual current devices - RCDs), which trip in the event of a defined fault current being measured and cause an immediate shut-down, residual current monitors indicate a fault current early and report a degradation of insulation via an output contact for example. The early detection of insulation faults along with preventative maintenance and repair outside operating hours allows unexpected downtimes for machines and systems to be avoided and this in turn avoids undesirable operational interruptions, property damage and high costs. Advantages and customer benefits Space-saving switch cabinet installation with a width of just 52.5 mm Time and cost optimised maintenance / repair High system availability through early fault reporting Simple adjustment via stepped rotary switches Broken wire detection in the measurement circuit 4 measurement ranges from 10 mA to 3 A Adjustable pre-alarm

Residual current monitor RN 5883 Technical features Order information Per IEC/EN 62 020,VDE 0663 All-current sensitive (type B) per IEC/TR 60755 For detection of insulation faults in earthed networks 4 measurement ranges from 10 mA ... 3 A Alarms and pre-alarms with manual reset possible With adjustable switching delay Energized or de-energized on trip selectable LED display for operation, pre-alarm and alarm With test function Display via LED chain for differential current With analogue output as an option Broken wire detection Adjustment protection for the rotary switch with transparent cover...