Bender IR425-D4-2 Isometer Insulation Monitoring

Features

  • Insulation monitoring for AC/DC control circuits 0…300 V
  • Two separately adjustable response values
  • Preset function (automatic setting of basic parameters)
  • Connection monitoring system/earth
  • LEDs: Power On, Alarm 1, Alarm 2
  • Internal/external test/reset button
  • Two separate alarm relays (one changeover contact each)
  • N/O or N/C operation, selectable
  • Fault memory behaviour, selectable
  • Self monitoring with automatic alarm
  • Multi-functional LC display
  • Adjustable response delay
  • Two-module enclosure (36 mm)
  • Push-wire terminal (two terminals per connection)

Applications

  • AC/DC control circuits in the industrial sector, mechanical engineering, power plants, elevators, automation systems etc.
  • AC/DC control and auxiliary circuits in accordance with DIN EN 60204-1 “Electrical equipment of machines”, IEC 60204-1, EN 60204-1
  • AC/DC auxiliary circuits in accordance with DIN VDE 0100-725 (VDE 0100-725)
  • Smaller AC/DC IT systems such as lighting systems

ISOMETER® IR425-D4 Variant(s)

Type Nominal system voltage* Un Supply voltage* US Response value Ran System leakage capacitance Ce Art. No.**
IR425-D4-1 DC/AC 0…300 V,
15…460 Hz		 DC 9,6…94 V/
AC 16…72 V, 15…460 Hz		 1…200 kΩ < 20 µF B71036403
B91036403
IR425-D4-2 DC/AC 0…300 V,
15…460 Hz		 DC 70…300 V/
AC 70…300 V, 15…460 Hz		 1…200 kΩ < 20 µF B71036402
B91036402

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