Insulation monitoring
Insulation monitoring devices continuously monitor the insulation resistance of IT systems (unearthed systems) and issue an alarm if the value falls below a response value.
To obtain a measurement, the device has to be connected between the IT system and the protective earth conductor (PE). A measuring current is superimposed onto the system which is detected and evaluated by a measuring circuit. Insulation monitoring devices detect deteriorations of the insulation level at an early stage and in a reliable way.
38 Products found
ISOMETER® iso685…
Insulation monitoring device for inverter applications and large industrial plants
ISOMETER® iso685-…-B
Insulation monitoring device for inverter applications and large industrial plants, variant for coupled systems
ISOMETER® iso685-…-P
Insulation monitoring device for inverter applications and large industrial plants, variant for coupled systems and insulation fault location
ISOMETER® isoNAV685-D
Insulation monitoring device with instantaneous tripping, frequency nominal system voltage 60 Hz
ISOMETER® isoNAV685-D-B
Insulation monitoring device for offline monitoring of de-energised loads
ISOMETER® isoHR685W
Insulation monitoring device for measuring high-resistance insulation resistances up to 10 GΩ and to monitor long parallel cable
ISOMETER® isoRW685W-D
Insulation monitoring device tailored to the requirements of railway rolling stock applications
ISOMETER® isoRW685W-D-B
Insulation monitoring device especially for railway applications
ISOMETER® IRDH275BM-7 with AGH675S-7…
Device combination for insulation monitoring in medium-voltage systems
ISOMETER® iso415R
Insulation monitoring device for unearthed AC, AC/DC and DC main and control circuits
ISOMETER® IR420-D4
Insulation monitoring device for unearthed AC control circuits
ISOMETER® IR425-D4
Insulation monitoring device for unearthed AC/DC control circuits
ISOMETER® iso1685DP/isoHV1685D/isoLR1685DP
Insulation monitoring device for unearthed AC, AC/DC and DC power supplies (IT systems)
ISOMETER® isoHR1685DW–925
Insulation monitoring device for mobile, insulated elevating work platforms
ISOMETER® IR1575…
Insulation monitoring device for unearthed systems up to 480 V
ISOMETER® IR427 with MK7
Insulation monitoring device for medical IT systems
ISOMETER® isoMED427
Insulation monitoring device with an integrated locating current injector for medical IT systems
ISOMETER® isoLR275 with AGH-LR
Insulation monitoring device for installations with a low-resistance insulation level
ISOMETER® isoPV with AGH-PV
Insulation monitoring device for photovoltaic systems up to AC 793 V/DC 1100 V
ISOMETER® isoPV425 with AGH420
Insulation monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V
ISOMETER® isoPV1685RTU/isoPV1685P
Insulation monitoring device for unearthed systems in photovoltaic installations up to AC 1000 V/DC 1500 V
ISOMETER® isoPV1685DP
Insulation monitoring device for unearthed systems in photovoltaic systems
ISOMETER® IR420-D6
Offline monitor (earth fault lock-out) for monitoring de-energised loads in TN,TT and IT systems
ISOMETER® IR423
Insulation monitoring device for mobile generators
ISOMETER® IR123P
Insulation monitoring device for mobile generators
ISOMETER® isoGEN423
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) up to 3(N)AC, AC 400 V, DC 400 V
ISOMETER® isoRW425
Insulation monitoring device for railway applications up to AC/DC 440 V
ISOMETER® isoBAT425 with coupling impedance ZE420
Insulation monitoring device for batteries up to DC 400 V
ISOMETER® isoES425
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) for energy storage devices up to AC/DC 400 V
ISOMETER® isoHV425 with AGH422
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system)
ISOMETER® isoCHA425
Insulation monitoring device for unearthed DC systems (IT systems) DC 0 V to 400 V. Suitable for DC charging stations according to CCS or CHAdeMO
ISOMETER® isoCHA425HV with AGH420-1/AGH421-1
Insulation monitoring device with coupling device for unearthed DC systems (IT systems) DC 0 V to 1000 V Suitable for DC charging stations according to CCS or CHAdeMO
ISOMETER® IR155-3203/IR155-3204
Insulation monitoring device for unearthed DC drive systems in electric vehicles
ISOMETER® IR155-4203/IR155-4204
Insulation monitoring device for unearthed DC drive systems in electric vehicles
ISOMETER® IR155-3210
Insulation monitoring device (IMD) for unearthed DC charging systems (IT systems) for electric vehicles
ISOMETER® IR155-4210
Insulation monitoring device (IMD) for unearthed DC charging systems (IT systems) for electric vehicles
ISOMETER® iso175
Insulation monitoring device for unearthed drive systems (IT systems) in electric and hybrid vehicles
ISOMETER® isoEV425 with AGH420
- This device series is in the discontinuation phase. -
Deliverable according to availability until 31.08.2024.
ISOMETER® iso685…
Insulation monitoring device for inverter applications and large industrial plants
ISOMETER® iso685-…-B
Insulation monitoring device for inverter applications and large industrial plants, variant for coupled systems
ISOMETER® iso685-…-P
Insulation monitoring device for inverter applications and large industrial plants, variant for coupled systems and insulation fault location
ISOMETER® isoNAV685-D
Insulation monitoring device with instantaneous tripping, frequency nominal system voltage 60 Hz
ISOMETER® isoNAV685-D-B
Insulation monitoring device for offline monitoring of de-energised loads
ISOMETER® isoHR685W
Insulation monitoring device for measuring high-resistance insulation resistances up to 10 GΩ and to monitor long parallel cable
ISOMETER® isoRW685W-D
Insulation monitoring device tailored to the requirements of railway rolling stock applications
ISOMETER® isoRW685W-D-B
Insulation monitoring device especially for railway applications
ISOMETER® IRDH275BM-7 with AGH675S-7…
Device combination for insulation monitoring in medium-voltage systems
ISOMETER® iso415R
Insulation monitoring device for unearthed AC, AC/DC and DC main and control circuits
ISOMETER® IR420-D4
Insulation monitoring device for unearthed AC control circuits
ISOMETER® IR425-D4
Insulation monitoring device for unearthed AC/DC control circuits
ISOMETER® iso1685DP/isoHV1685D/isoLR1685DP
Insulation monitoring device for unearthed AC, AC/DC and DC power supplies (IT systems)
ISOMETER® isoHR1685DW–925
Insulation monitoring device for mobile, insulated elevating work platforms
ISOMETER® IR1575…
Insulation monitoring device for unearthed systems up to 480 V
ISOMETER® IR427 with MK7
Insulation monitoring device for medical IT systems
ISOMETER® isoMED427
Insulation monitoring device with an integrated locating current injector for medical IT systems
ISOMETER® isoLR275 with AGH-LR
Insulation monitoring device for installations with a low-resistance insulation level
ISOMETER® isoPV with AGH-PV
Insulation monitoring device for photovoltaic systems up to AC 793 V/DC 1100 V
ISOMETER® isoPV425 with AGH420
Insulation monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V
ISOMETER® isoPV1685RTU/isoPV1685P
Insulation monitoring device for unearthed systems in photovoltaic installations up to AC 1000 V/DC 1500 V
ISOMETER® isoPV1685DP
Insulation monitoring device for unearthed systems in photovoltaic systems
ISOMETER® IR420-D6
Offline monitor (earth fault lock-out) for monitoring de-energised loads in TN,TT and IT systems
ISOMETER® IR423
Insulation monitoring device for mobile generators
ISOMETER® IR123P
Insulation monitoring device for mobile generators
ISOMETER® isoGEN423
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) up to 3(N)AC, AC 400 V, DC 400 V
ISOMETER® isoRW425
Insulation monitoring device for railway applications up to AC/DC 440 V
ISOMETER® isoBAT425 with coupling impedance ZE420
Insulation monitoring device for batteries up to DC 400 V
ISOMETER® isoES425
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) for energy storage devices up to AC/DC 400 V
ISOMETER® isoHV425 with AGH422
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system)
ISOMETER® isoCHA425
Insulation monitoring device for unearthed DC systems (IT systems) DC 0 V to 400 V. Suitable for DC charging stations according to CCS or CHAdeMO
ISOMETER® isoCHA425HV with AGH420-1/AGH421-1
Insulation monitoring device with coupling device for unearthed DC systems (IT systems) DC 0 V to 1000 V Suitable for DC charging stations according to CCS or CHAdeMO
ISOMETER® IR155-3203/IR155-3204
Insulation monitoring device for unearthed DC drive systems in electric vehicles
ISOMETER® IR155-4203/IR155-4204
Insulation monitoring device for unearthed DC drive systems in electric vehicles
ISOMETER® IR155-3210
Insulation monitoring device (IMD) for unearthed DC charging systems (IT systems) for electric vehicles
ISOMETER® IR155-4210
Insulation monitoring device (IMD) for unearthed DC charging systems (IT systems) for electric vehicles
ISOMETER® iso175
Insulation monitoring device for unearthed drive systems (IT systems) in electric and hybrid vehicles
ISOMETER® isoEV425 with AGH420
- This device series is in the discontinuation phase. -
Deliverable according to availability until 31.08.2024.