Ground-fault products are used to monitor grounded systems (ungrounded and 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 (RCM - residual current monitors) are used to send a message to the user even before reaching the shutdown threshold of the GFCI. Ground-fault monitors detect deteriorations of the insulation level at an early stage and in a reliable way.
21 Products found
Digital service entrance ground-fault relay
Four-channel DC, AC and pulse current sensitive residual current monitor for earthed AC, AC/DC and DC systems
Multi-channel AC/DC ground-fault monitor
Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor
Multi-channel AC/DC ground-fault monitor with individual relay outputs
Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor with one alarm contact per channel
AC/DC sensitive ground-fault monitor (type B) with 6 integrated measuring current transformers
AC/DC sensitive residual current monitoring modules for MRCD applications
AC/DC sensitive residual current monitoring modules for monitoring applications
AC/DC sensitive residual current monitoring module with integrated split-core measuring current transformer
AC/DC sensitive residual current monitoring module for electric vehicle charging systems
DC sensitive residual current monitoring module for electric vehicle charging systems
Modular residual current device type B for additional protection (protection against indirect contact) in earthed systems (TN and TT systems)
AC/DC ground-fault monitor
AC/DC ground-fault monitor
AC ground-fault monitor
Single-channel AC and pulsed DC sensitive residual current monitor for AC systems
AC/DC sensitive residual current monitoring for AC charge stations
AC/DC sensitive residual current monitoring for AC charge stations
DC sensitive residual current monitoring for AC charge stations
AC/DC sensitive residual current monitoring module for measuring AC and DC currents up to ±100 mA
Digital service entrance ground-fault relay
Four-channel DC, AC and pulse current sensitive residual current monitor for earthed AC, AC/DC and DC systems
Multi-channel AC/DC ground-fault monitor
Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor
Multi-channel AC/DC ground-fault monitor with individual relay outputs
Multichannel AC, pulsed DC and AC/DC sensitive ground-fault monitor with one alarm contact per channel
AC/DC sensitive ground-fault monitor (type B) with 6 integrated measuring current transformers
AC/DC sensitive residual current monitoring modules for MRCD applications
AC/DC sensitive residual current monitoring modules for monitoring applications
AC/DC sensitive residual current monitoring module with integrated split-core measuring current transformer
AC/DC sensitive residual current monitoring module for electric vehicle charging systems
DC sensitive residual current monitoring module for electric vehicle charging systems
Modular residual current device type B for additional protection (protection against indirect contact) in earthed systems (TN and TT systems)
AC/DC ground-fault monitor
AC/DC ground-fault monitor
AC ground-fault monitor
Single-channel AC and pulsed DC sensitive residual current monitor for AC systems
AC/DC sensitive residual current monitoring for AC charge stations
AC/DC sensitive residual current monitoring for AC charge stations
DC sensitive residual current monitoring for AC charge stations
AC/DC sensitive residual current monitoring module for measuring AC and DC currents up to ±100 mA