Insulation monitor MH 5880

The insulation monitors MK 5880N and MH 5880 of the VARIMETER IMD family provides best insulation monitoring of pure three-phase and AC IT systems in a state of the art way fulfilling the relevant standards. The adjustment of the setting values is simple and user friendly done on 2 rotary switches on the front of the device. The MH 5880 also has a galvanic separated analogue output and a 11 step LED chain for display the actual insulation value.

Advantages and Features:​

• According to IEC/EN 61557-8​
• For single and 3-phase AC-systems up to 0 … 500 V and 10 … 1000 Hz​
• Monitors also disconnected voltage systems​
• Adjustable tripping value RAL of 5 … 100 kΩ​
• De-energized on trip​
• Auxiliary voltage, measuring circuit and output contacts are galvanically separated​
• Manual and auto reset​
• With test and reset button​
• Connections for external test and reset buttons possible​
• LED indicators for operation and alarm​
• 2 changeover contacts​
• MK 5880N/200 with additional prewarning​
  • Adjustable prewarning value 10 kΩ … 5 MΩ​
  • 1 output relay for alarm and 1 for pre-warning​
• MH 5880/500: similar to MK 5880N but with galvanic separated analogue output and 11 step LED chain for the actual insulation value​
• Wire connection: also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4​
• As option with pluggable terminal blocks for easy exchange of devices​
  • With screw terminals​
  • Or with cage clamp terminals​
• MK 5880N: 22.5 mm width​
• MH 5880: 45 mm width