The AAL-2 is used to supervise insulation resistance between an isolated AC voltage distribution network and an earth/safety cable.

The insulation monitor is applicable with single-phase and 3-phase networks with/without neutral for voltages up to 440 V AC.

The AAL-2 has a built-in relay output and an adjustable warning set point.

  • Insulation monitoring of AC networks of up to 440 V AC
  • 10 M or 1 M ranges
  • Adjustable warning set point
  • Delay to prevent unwanted warnings

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