Ground-Fault Monitoring for Grounded Systems
Ground-fault products are used to monitor grounded systems (resistance or solidly grounded) for fault currents or residual currents. The sum of all conductors except the protective earth conductor is measured by means of measuring current transformers.
In general, ground-fault monitors (aka residual current monitors RCM or RCMS) are used to send a warning or alarm to user or operators typically while the currents still remain very low. Many of the RCM devices feature dual setpoints for enhanced features. Ground-fault monitors detect leakage current at low level usually caused by deteriorations of the insulation at an early stage. A key criterion for selection is whether full frequency response is required or simple 60 Hz responding devices.
19 Products found
CMGF420
Digital service entrance ground-fault relay
LINETRAXX® SmartDetect RCMS
Four-channel DC, AC and pulse current sensitive residual current monitors for earthed AC, AC/DC and DC systems
LINETRAXX® RCMS460-D Blindspot®
Multi-channel AC/DC ground-fault monitor
LINETRAXX® RCMS490-D Blindspot®
Multi-channel AC/DC ground-fault monitor with individual relay outputs
LINETRAXX® RCMS150 Series
AC/DC sensitive ground-fault monitor (type B) with 6 integrated measuring current transformers
LINETRAXX® RCMB300 Series
AC/DC sensitive residual current monitoring modules for monitoring applications
LINETRAXX® RCMB330
AC/DC sensitive residual current monitoring module with integrated split-core measuring current transformer
RCMB104
AC/DC sensitive residual current monitoring module for electric vehicle charging systems
RDC104-4
DC sensitive residual current monitoring module for electric vehicle charging systems
LINETRAXX® MRCDB423
Modular residual current device type B for additional protection (protection against indirect contact) in earthed systems (TN and TT systems)
LINETRAXX® RCMA423
AC/DC ground-fault monitor
LINETRAXX® RCMA420
AC/DC ground-fault monitor
LINETRAXX® RCM420
AC ground-fault monitor
LINETRAXX® RCM410R-24/-2
Single-channel AC and pulsed DC sensitive residual current monitor for AC systems
benvac® RCMB121
AC/DC sensitive residual current monitoring for AC charge stations
benvac® RCMB123
AC/DC sensitive residual current monitoring for AC charge stations
benvac® RDC121
DC sensitive residual current monitoring for AC charge stations
RCMB130 Séries
AC/DC sensitive residual current monitoring module for measuring AC and DC currents up to ±100 mA
CMGF420
Digital service entrance ground-fault relay
LINETRAXX® SmartDetect RCMS
Four-channel DC, AC and pulse current sensitive residual current monitors for earthed AC, AC/DC and DC systems
LINETRAXX® RCMS460-D Blindspot®
Multi-channel AC/DC ground-fault monitor
LINETRAXX® RCMS490-D Blindspot®
Multi-channel AC/DC ground-fault monitor with individual relay outputs
LINETRAXX® RCMS150 Series
AC/DC sensitive ground-fault monitor (type B) with 6 integrated measuring current transformers
LINETRAXX® RCMB300 Series
AC/DC sensitive residual current monitoring modules for monitoring applications
LINETRAXX® RCMB330
AC/DC sensitive residual current monitoring module with integrated split-core measuring current transformer
RCMB104
AC/DC sensitive residual current monitoring module for electric vehicle charging systems
RDC104-4
DC sensitive residual current monitoring module for electric vehicle charging systems
LINETRAXX® MRCDB423
Modular residual current device type B for additional protection (protection against indirect contact) in earthed systems (TN and TT systems)
LINETRAXX® RCMA423
AC/DC ground-fault monitor
LINETRAXX® RCMA420
AC/DC ground-fault monitor
LINETRAXX® RCM420
AC ground-fault monitor
LINETRAXX® RCM410R-24/-2
Single-channel AC and pulsed DC sensitive residual current monitor for AC systems
benvac® RCMB121
AC/DC sensitive residual current monitoring for AC charge stations
benvac® RCMB123
AC/DC sensitive residual current monitoring for AC charge stations
benvac® RDC121
DC sensitive residual current monitoring for AC charge stations
RCMB130 Séries
AC/DC sensitive residual current monitoring module for measuring AC and DC currents up to ±100 mA
