Dold Insulation Monitoring Relay, 1, 3 Phase, DPDT, 0 → 500V ac, DIN Rail

For single and 3-phase AC-systems up to 0 ... 500 V and 10 ... 1000 Hz
Monitors also disconnected voltage systems
Adjustable tripping value RALof 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 pre warning
adjustable pre warning 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