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Miniature relays for electronics, analog switches

FRER

25 mA - 25A | X72DS series

Article: 00086580

Solid-state relay / differential / earth-leakage / switching

The X72DS 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.
In addition to the trip contacts (doubled for a greater application flexibility), it is also available
an alarm contact, useful to indicate the needing of a preventive maintenance in order to
avoid unexpected power breaks.
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.
Alarm contact settable to 30 or 60% of the trip current.
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.
Inputs for remote reset.

Specifications

  • Type: solid-state, differential
  • Function: earth-leakage, switching
  • Form: compact, flush-mount, panel-mount
  • Other characteristics: dust-proof, with time-delayed output

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