Frer-Earth Leakage Relays-X52DS

DESCRIPTION
The X52DS series earth leakage relays are designed to measure the leakage or unbalance
currents caused by conductors or appliances insulation losses and to react, in case the set
limits are exceeded, switching off the power supply to the defective system.
Main features and functions:
• Wide range of trip currents and delays to guarantee the necessary selectivity in order to
keep in operation the parts of the system not involved in the fault.
• Three ranges of tripping current and two of delay to increase the setting accuracy.
• Continuous check of the good connection with the toroidal transformer, performed on the
measuring winding, with trip action in case of negative result.
• Selectable manual or automatic reset.
• Selectable normal or positive safety operating mode of the trip contacts.
• Inputs for remote reset.