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Features and functions

Get a general overview of the most important functions of the RCM 202-AB.

Applications

  • Monitoring of residual current monitoring type A to B+

  • The two-channel residual current monitor meets the requirements of the DIN EN 62020 standard. A recurring insulation test can be omitted or at least limited. Typical places of application are the low-voltage main distribution (LVM) as well as the subdistribution boards (SSD) in grounded systems (e.g. TN-S systems). Across industries, the RCM 202-AB is a safe alternative when power interruptions due to a residual current device (RCD) or insulation resistance measurement are intolerable. Complete integration into the GridVis® software is possible. The device can be directly integrated via the RS485 interface.

  • Patented measurement method

  • Can be used as RCM at any point, e.g. DC systems, frequency converters, applications with increased fire protection requirements.

    • Can be combined with any standard differential current transformer from Janitza can be combined
    • Residual currents from type A to type B+
    • Measurement up to 20 kHz (type B+) possible
    • Accurate measurement on multiple levels

AT A GLANCE

  • Residual current transformer

    • Residual current measurement, up to 2 residual current transformers
    • Measuring range AC/DC 10 mA ... 20 A

  • RCM Analysis

    • Evaluation of AC and DC
    • Harmonic spectrum up to 2 kHz, type B
    • Mixed current up to 20 kHz, type A, type B+

  • Peripheral

    • 2 analog outputs
    • 2 alarm outputs
    • Compatible with RCM inputs of UMG 96-RM-E & UMG 96-PA with RCM module

  • Patented measurement method

    • Typ A, B, B+ Messung mit passiven Differenzstromwandlern

  • Historical data

    • Measured value and extreme value memory with time stamp

  • Communication

    • RS485 interface
      (Protocol: Modbus-RTU)
    • Compatible with all Janitza Modbus master devices with communication capability

  • Standard-compliant according to IEC 62020

    • Acquisition, evaluation and
      monitoring of differential
      flows type A, B and B+

  • On site service

    • High-resolution LCD display
      with intuitive operation

COMPATIBLE CURRENT TRANSFORMERS

  • CT-AC-RCM

  • DACT

  • CT-AC-RCM A

  • KBU

Further Information about the RCM 202-AB

  • Article numbers

  • RCM 202-AB

    1401627

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