Using Ground Fault Circuit Interrupters with Lenze AC Tech Drives

There are many applications that require a ground fault circuit interrupter (GFCI) device. A GFCI can be installed on single or three-phase systems with amperage values of 20, 40, 60, 80 or 100 amps. GFCI devices are used to protect a line where leakage current is prevalent or becomes a safety issue. These devices are used in a location where water is present to protect against electrocution or other safety hazards. Installation of a GFCI device to a pulse-width modulated drive can cause nuisance trips from parasitic capacitance. In most cases, nuisance trips can be resolved with the right drive settings, motor and power cabling.