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Residual Current Monitoring Device (RCM)

Residual Current Monitoring (RCM) device can work with AC contacts or circuit breakers as a monitoring/protective relay, and protect against earth leakage (ground) faults as well as the potential electrical fires. It can provide warning of potential ground faults and reduce downtime of machineries caused by ground faults.

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RCM can be used to monitor the ground faults in TT, TN-S, and TN-C-S (separated PE and N part) systems.

Paper Abstract
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Key Features

  • ​suitable for various power systems

  • wide range of configurable residual current thresholds, 10mA-20A

  • ​request external transformers

  • warning and alarm functions with different configurable thresholds, each has a dedicated indication and relay output

  • DI ports to monitor the status of contacts/breakers

  • Self-test

  • RS485 Modbus RTU

  • Status and abnormity monitoring of transformers

  • Conform to IEC standards 

Optional Configurations

  • ​Installation：DIN-rail mounted, pannel mounted

  • ​Residual Current Type：typeA，typeAC

  • Display：LED, LCD

  • ​Comm.：RS485-Modbus RTU， Ethernet-Modbus TCP

Product Examples

名称
规格
屏幕
通讯
图片
面板式RCM (RCM)
面板式48X48mm2 (Panel Mounted 48)
LED
RS485
导轨式RCM (RCM)
导轨式4P (DIN-Rail Mounted)
LED
RS485
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