差动电流互感器（剩余电流监控，RCM）
Difference current transformer (Residual current monitoring, RCM)
This type is specialised in the detection of residual currents in 3 / 4-wire AC networks.
Its special features are:
Highly sensitive current sensor for the detection of even the smallest residual currents, fixed switching hysteresis of 5%, high safety thanks to integrated overvoltage protection and coverage of a wide frequency range.
This type is specialised in the detection of residual currents in 3 / 4-wire AC networks.
Its special features are:
Highly sensitive current sensor for the detection of even the smallest residual currents, fixed switching hysteresis of 5%, high safety thanks to integrated overvoltage protection and coverage of a wide frequency range.
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