LINETRAXX® RCMB300 系列

LINETRAXX® RCMB300 系列

剩余电流监视模块RCMB300系列,用于测量接地系统(TN和TT)中的交流和直流故障电流。这些模块能够在直流频率范围内测量高达IΔ = 20 A的剩余电流,其频率范围为直流0....100 kHz。

两个单独可调的响应值允许区分预警和报警。当达到响应值IΔn2(报警)时,输出继电器K1和K2开关。

这些模块带有RS-485接口,与Modbus RTU配合使用,可用于传输测量值和报警值。也可以通过此接口设置参数。

剩余电流监视模块分别由RCMB301评估电子仪和CTBC20(P)...210(P)系列测量电流互感器芯组成。组装一个完整的模块,需要电子元件和测量电流互感器芯;如果单独订购,则必须在启动期间将这两个部件插入并校准。

CTBC20P...210P的测量电流互感器芯 系列具有集成的磁屏蔽,适用于高负载电流或浪涌电流的应用

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  • Continuous residual current monitoring in compliance with DGUV Vorschrift 3 (German Social Accident Insurance Regulation 3)
  • Easy DIN rail or screw mounting
  • RS-485 interface with Modbus RTU (reading out measured values/setting parameters)
  • Integrated switching outputs with two changeover contacts K1 and K2 (galvanically isolated)
  • Frequency range DC…100 kHz
  • Combined test and reset button
  • Multicolour LED indicating operation, exceeded response value, disturbances and status messages
  • AC/DC sensitive type B measured value acquisition acc. to IEC 60755
  • AC/DC sensitive type B+ measured value acquisition acc. to VDE 0664-400
  • The AC and DC components as well as the r.m.s. value of the residual current can be evaluated separately
  • Exchangeable electronic enclosure without mechanical separation of the primary conductors
  • Extension/retrofitting or modification of functionalities in case of changed monitoring requirements
  • Insensitive to load currents due to full magnetic shield (CTBC20P…210P only)
  • Connection monitoring of the measuring current transformer with cyclical test current
  • Use of the RCMB301 for all CTBC… measuring current transformer sizes
  • Supply voltage DC 24 V

可选配件 LINETRAXX® RCMB300 系列

Accessories
DescriptionArt. No.
Interface converter USB to RS-485B95012045
Terminal block for RCMB301 moduleB74043124

Voltage supply
Typemax. connected current transformersArt. No.
STEP-PS/1 AC/24 DC/0.54B94053110
STEP-PS/1 AC/24 DC/1.7514B94053111
STEP-PS/1 AC/24 DC/4.234B94053112

Accessories
Type designationArt. No.
Snap-on mounting for CTBC20 and CTBC20PB91080111
Snap-on mounting for CTBC35 and CTBC35PB91080112
(included in scope of delivery)

版本 LINETRAXX® RCMB300 系列

Evaluation electronics
TypeSupply voltage UsVariantArt. No.
RCMB301DC 24 V (19.2…28.8 V)Modbus RTUB74043100
Required terminals are included in the scope of delivery.

Measuring current transformers
TypeInternal diameterArt. No.
CTBC2020 mmB98120001
CTBC20P20 mmB98120002
CTBC3535 mmB98120003
CTBC35P35 mmB98120004
CTBC6060 mmB98120005
CTBC60P60 mmB98120006
CTBC120120 mmB98120007
CTBC120P120 mmB98120020
CTBC210210 mmB98120008
CTBC210P210 mmB98120021
P = full magnetic shield

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