Insulation monitoring device ISOM K-20 Insulation monitoring device - for power networks or control/command circuits ISOM K-40 Insulation monitoring device - for power networks or control/command circuits ISOM K-40h Insulation monitoring device - for medical locations ISOM D-15h Alarm report indicator - for medical locations ISOM K-15EV Insulation Monitoring Device - for DC electric vehicle chargers
