Sat Mar 23 07:18:48 2019
  1. 产品介绍
  2. 剩余电流监控
Sat Mar 23 07:18:48 2019
LINETRAXX® RCMA420

LINETRAXX® RCMA420

交直流敏感型剩余电流监视仪RCMA420被设计用于监视接地电源系统（TN和TT系统），用于平滑直流故障电流或剩余电流连续大于零的地方。这些特殊的负载包含六脉冲整流器或单通道平滑整流器，如变频器、电池充电器、带变频驱动的施工现场设备。也可以监视单相线的电流。 设置响应值的50…100%的预报警阶段允许区分报警和预报警。由于使用测量电流互感器的测量值，设备的负载电流和系统的标称电压几乎无关。

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  • AC/DC sensitive residual current monitor Type B acc. to IEC 62020 and IEC/TR 60755
  • r.m.s. value measurement (AC+DC)
  • Two separately adjustable response values 10…500 mA
  • Frequency range 0…2000 Hz
  • Start-up delay, response delay and delay on release
  • Digital measured value display via LC display
  • Measured value memory for operating value
  • CT connection monitoring
  • LEDs: Power On, Alarm 1, Alarm 2
  • Internal/external test/reset button
  • Two separate alarm relays (one changeover contact each)
  • N/O or N/C operation and fault memory behaviour selectable
  • Continuous self monitoring
  • Multi-functional LC display
  • Password protection for device settings
  • Sealable transparent cover
  • Two-module enclosure (36 mm)
  • RoHS compliant
  • Push-wire terminal (two terminals per connection)
  • AC/DC sensitive residual current monitoring in earthed two, three or four conductor systems (TN and TT systems)
  • Monitoring of variable-speed drives, UPS systems, construction site equipment, printing machines, battery systems, laboratory equipment, wood working machines, MF welding systems, furniture industry, medical electrical equipment, etc.
  • AC/DC sensitive current monitoring of single conductors de-energised under normal conditions (e.g. N and PE conductors)

 

可选配件 LINETRAXX® RCMA420

Measuring current transformers
TypeInternal diameter (mm)Art. No.
W20ABø 20B98080008
W35ABø 35B98080016
W60ABø 60B98080026

Connection cable measuring current transformer – RCMA420-D
TypeLength/mArt. No.
WX-1001B98080503
WX-2502,5B98080504
WX-5005B98080505
WX-100010B98080511

Accessories
TypeArt. No.
Mounting clip for XM420 enclosureB98060008
Snap-on mounting W20…, W35…B98080501
Snap-on mounting W60…B98080502

版本 LINETRAXX® RCMA420


TypeResponse range IΔnFrequency rangeSupply voltage US*Art. No.**
RCMA420-D-110…500 mA0…2000 HzDC 9,6…94 V /
AC 16…72 V, 42…460 Hz		B74043001
B94043001
RCMA420-D-210…500 mA0…2000 HzDC 70…300 V /
AC 70…300 V, 42…460 Hz		B74043002
B94043002
* Absolute values
**(B7… = push-wire terminal / B9… = screw-type terminal)

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