The Kar1-HD+RI-R44-V Residual Current and Insulation Monitoring Relay has the following features:

1. Easy Installation: Installation procedures are extremely simple, making the device easy to use.
2. Wide Adjustment Range: Trip current adjustment between 30 mA and 30 A offers flexibility to suit system needs.
3. Trip Time Adjustment: Trip time adjustment between 20 mS and 5 seconds increases control precision.
4. Low-Pass Harmonic Filter: The low-pass harmonic filter feature, unaffected by harmonic and interference currents, is ideal especially for devices that generate high harmonic currents.
5. Dry Contacts: It has dry contacts for use with different voltage levels and control devices.
6. Manual Test and Reset: Features manual test and reset by the user.
7. Remote Control: Remote test and reset capability provides remote control.
8. Compatibility with Various Systems: Fully compatible with IT, TN, and TT systems.
9. High Control Voltage: 0-500 Volt control voltage ensures adaptability to various applications.
10. Modbus Communication Protocol: Modbus communication protocol enables data transfer, offering instant monitoring with compatible programs.
11. LCD Screen: Features an LCD screen that clearly displays information.
12. Various Measurements: It can perform various measurements such as current and voltage measurements, harmonic analysis, and insulation resistance measurement.
13. Alarm and Trip Status: Displays normal operation, alarm, and trip statuses with 3 different color indicators.
14. DIN Rail Mounting Compatibility: Suitable for DIN rail mounting, offering flexible installation options to the user.
15. Wide Operating Temperature: Has a wide operating temperature range of (-10) – (+60) degrees Celsius.

This unique design is an ideal solution for continuously monitoring insulation faults in power installations and enhancing safety with alarm or trip status when certain limits are exceeded.