General
Type of electric connection	Screw connection
Width	45
Height	85.6
Depth	104.8
Operating voltage at AC 50 Hz	230
Operating voltage at AC 60 Hz	230
Rated operation frequency	400
Voltage measurement range	1000
Voltage type (operating voltage)	AC
With detachable clamps
Indication of insulation value
Error registration possible
External power supply required

The high reliability of IT systems is
ensured by continuous insulation monitoring. Insulation monitoring detects developing insulation faults and
immediately reports that the value has fallen below the minimum. This prevents interruption of operation
due to a second, more serious insulation fault.
ABB developed a completely new range of insulation monitoring devices for AC, DC or AC/DC
IT systems up to 690 V AC or 1000 V DC. Most standard applications can
be served with just 4 devices. In addition, a version for solar applications with increased leakage capacity has been
added.