Insulation monitoring device for monitoring the insulation resistance in unearthed AC and DC IT networks. The insulation resistance is monitored using a prognostic measurement method. Two measuring ranges can be set independently of one another. With optical warning display and limit switch-off via a relay.
- With plugs for the control voltage supply, the voltage measuring circuit, the earth connection and the earth measuring circuit on the underside.
- With 4 mm sockets for connection to the relay contact of an output relay.