ISOMETER® IR155-4203/IR155-4204

Insulation monitoring device (IMD) for unearthed DC drive systems (IT systems) in electric vehicles
Continuous measurement of the insulation resistance 0…10 MΩ
Insulation monitoring of AC and DC insulation faults for unearthed systems (IT systems) 0…1000 V
Short-circuit proof outputs for fault detection and measured value
Suitable for 12 V and 24 V systems

The ISOMETER® iso-F1 IR155-4203/-4204 monitors the insulation resistance between the insulated and active HV-conductors of an electrical drive system (U_n = DC 0 V…1000 V) and the reference earth (chassis ground > Kl.31). The patented measurement technology is used to monitor the condition of the insulation on the DC side as well as on the AC motor side of the electrical drive system. Existing insulations faults will be signalised reliably even under high system interferences which can be caused by motor control processes, accelerating, energy recovering etc.

Questions? Contact us!

Insulation monitoring device (IMD) for unearthed DC drive systems (IT systems) in electric vehicles
Continuous measurement of the insulation resistance 0…10 MΩ
Insulation monitoring of AC and DC insulation faults for unearthed systems (IT systems) 0…1000 V
Short-circuit proof outputs for fault detection and measured value
Suitable for 12 V and 24 V systems

The ISOMETER® iso-F1 IR155-4203/-4204 monitors the insulation resistance between the insulated and active HV-conductors of an electrical drive system (U_n = DC 0 V…1000 V) and the reference earth (chassis ground > Kl.31). The patented measurement technology is used to monitor the condition of the insulation on the DC side as well as on the AC motor side of the electrical drive system. Existing insulations faults will be signalised reliably even under high system interferences which can be caused by motor control processes, accelerating, energy recovering etc.

Questions? Contact us!

Features

Suitable for 12 V and 24 V systems
Automatic device self test
Continuous measurement of insulation resistance 0…10 MΩ
– Response time < 2 s after power on for first estimated insulation resistance (SST)
– Response time < 20 s for measured insulation resistance (DCP)
Automatic adaptation to the existing system leakage capacitance (≤1 μF)
Detection of ground faults and lost ground line

Isolation monitoring of AC and DC insulation faults for unearthed systems (IT systems) 0…1000 V peak
Low voltage detection for voltages below 500 V (value configurable EOL Bender)
Short protected outputs for:
– Fault detection (high side output)
– Measurement value (PWM 5 % … 95 %) & status (f = 10…50 Hz) at high or inverted low side driver (M_HS/M_LS output)
Conformal coating (SL 1307 FLZ)

Applications

Monitoring for unearthed DC drive systems (IT systems) in electric vehicles