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 (Un = 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!

ISOMETER® IR155-4203/IR155-4204
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 (Un = 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 (MHS/MLS output)
  • Conformal coating (SL1301ECO-FLZ)

Applications

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

ISOMETER® IR155-4203/IR155-4204 Variant(s)

Type Art. No
IR155-4203Fixed default parameters
Ran: 100 kΩ
Under voltage detection: 300 V
Fave: 10
Measurement output low side
B91068141
IR155-4203Parameters can be customised
Ran: 100 kΩ…1 MΩ
Under voltage detection: 0 V…500 V
Fave: 1…10
Measurement output low side
B91068141C
IR155-4204Fixed default parameters
Ran: 100 kΩ
Under voltage detection: 0 V (inactive)
Fave: 10
Measurement output high side
B91068142
IR155-4204Parameters can be customised
Ran: 100 kΩ…1 MΩ
Under voltage detection: 0 V…500 V
Fave: 1…10
Measurement output high side
B91068142C

Optional Accessories for ISOMETER® IR155-4203/IR155-4204

TypeArt. No.
Mounting kitB91068500
Connecting kit IR155-42xxB91068502

Downloads for ISOMETER® IR155-4203/IR155-4204

NameCategorySizeLanguageTimestampD-/B-Number
IR155-32xx CE Declarations of conformity 83.9 KB 2022/08/1212.08.2022
We are your eMobility partner! Flyer 262.3 KB EN2023/11/2929.11.2023
IR155-4203/IR155-4204 Datasheets 528.7 KB DE2021/05/1212.05.2021D00289
IR155-4203/IR155-4204 Datasheets 540.1 KB EN2021/05/1212.05.2021D00289
IR155-4203/IR155-4204 Datasheets 406.8 KB ES2021/05/1212.05.2021D00289
IR155-xx03/IR155-xx04 Quickstarts 1.8 MB DE2024/05/2323.05.2024D00115
IR155-xx03/IR155-xx04 Quickstarts 1.8 MB EN2024/05/2323.05.2024D00115