Bender IR425-D4-2 Ground-fault monitoring device for AC IT systems

The ISOMETER® IR425-D4-2 monitors the insulation resistance of ungrounded AC control circuits (IT systems) 0…300 V. If the systems to be monitored include DC components, such as switched-mode power supplies or solenoid valves, the display and operating characteristics may be affected.The display and response values apply to pure AC systems. An external supply voltage allows de-energized systems to be monitored too.