IR423 Description
The IR423 A-ISOMETER® monitors the insulation resistance RF of an unearthed AC system of 0…300 V to earth that is supplied by a mobile generator according to IEC 60364-5-551 (DIN VDE 0100-551). The IR423 is suitable for AC systems with operating frequencies ≥ 30 Hz as well as for AC systems with directly connected DC circuits. The maximum permissible system leakage capacitance Cemax is 5 μF.
IR423 Key Features
- Insulation monitoring for mobile gene
- Option “W”: For high mechanical stress
- Two separately adjustable response values
- Connection monitoring system / earth
- Power On LED, LED Alarm 1, LED Alarm 2
- Internal and external test / reset button
- Two separate alarm relays (one changeover contact each)
- N / O or N / C operation
- Fault memory, selectable
- Self monitoring with automatic alarm message