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Ground-Fault Monitoring, Ungrounded

Early detection of ground faults on ungrounded systems allows critical systems to remain online while faults are identified and resolved. By continuously monitoring the system's insulation resistance, Bender's ground-fault detectors can provide early indication of both immediate and trending ground faults before leakage current may be of concern.

Bender's advanced insulation monitoring technology detects symmetrical and asymmetrical faults on both AC and DC systems, as well as systems with variable frequency drives and other power conversion equipment. When the configurable discrete alarm value is exceeded, it activates a variety of outputs to ensure technicians are notified. The patented Bender measurement signal works similar to a ‘megger’ but while the system is energized and online.

Circuits
System voltage
Mounting
Display
Outputs
Additional features
Application-specific
Reset

27 Products found

ISOMETER® iso685…
ISOMETER® iso685 Series

Ground-fault detector for ungrounded AC/DC systems

ISOMETER® iso685…
ISOMETER® iso685-…-B

Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches

ISOMETER® iso685-…-P
ISOMETER® iso685-…-P

Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches and locating current injector

ISOMETER® isoNAV685-D
ISOMETER® isoNAV685-D

Ground-fault monitoring device with instantaneous tripping, frequency nominal system voltage 60 Hz

ISOMETER® isoHR685W-…-I-B
ISOMETER® isoHR685W

Ground-fault detector for subsea cable monitoring

ISOMETER® isoRW685W-D
ISOMETER® isoRW685W-D

Ground-fault monitoring device tailored to the requirements of railway rolling stock applications

ISOMETER® isoRW685W-D-B
ISOMETER® isoRW685W-D-B

Insulation monitoring device especially for railway applications

ISOMETER® iso1065 (IRDH1065)

Insulation monitoring device for subsea cables and umbilicals.

ISOMETER® iso415R
ISOMETER® iso415R Ground Fault Monitoring Device

Insulation monitoring device for unearthed AC, AC/DC and DC main and control circuits

ISOMETER® IR420-D4
ISOMETER® IR420-D4

Ground-fault monitoring device for ungrounded AC control circuits

ISOMETER® IR425-D4
ISOMETER® IR425-D4

Ground-fault monitoring device for ungrounded AC/DC control circuits

ISOMETER® iso1685DP-425/isoHV1685D-425/isoLR1685DP-325
ISOMETER® iso1685DP/isoHV1685D/isoLR1685DP

Insulation monitoring device for unearthed AC, AC/DC and DC power supplies (IT systems)

ISOMETER® isoHR1685DW–925
ISOMETER® isoHR1685DW–925

Insulation monitoring device for mobile, insulated elevating work platforms

ISOMETER® isoLR275 mit AGH-LR
ISOMETER® isoLR275 with AGH-LR

Ground-fault monitoring device for installations with a low-resistance insulation level

ISOMETER® isoPV mit AGH-PV
ISOMETER® isoPV with AGH-PV

Ground-fault monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V

ISOMETER® isoPV425 mit AGH420
ISOMETER® isoPV425 with AGH420

Ground-fault monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V

ISOMETER® isoPV1685/isoPV1685PFR
ISOMETER® isoPV1685 Series

Ground-fault monitoring device for DC systems up to 1500 V in photovoltaic systems

ISOMETER® IR420-D6
ISOMETER® IR420-D6

Offline monitor for de-energized AC, DC and 3(N)AC loads in solidly grounded and ungrounded systems

ISOMETER® isoGEN423
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
ISOMETER® isoRW425

Ground-fault monitoring device for railway applications up to AC/DC 440 V

ISOMETER® isoES425
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 mit AGH422
ISOMETER® isoHV425 with AGH422

Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system)

ISOMETER® isoEV425 mit AGH420
ISOMETER® isoEV425 with AGH420

Ground-fault monitoring device for ungrounded DC circuits for charging electric vehicles

ISOMETER® isoCHA425

Insulation monitoring device for unearthed DC systems for the charging of electric vehicles acc. to Japanese charging standard CHAdeMO

ISOMETER® isoCHA425HV mit AGH420-1
ISOMETER® isoCHA425HV with AGH420-1

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
ISOMETER® IR155 03/04 Series

Ground-fault monitoring device for ungrounded DC drive systems in electric vehicles

ISOMETER® iso165C, iso165C-1

Ground-fault monitoring device (IMD) for ungrounded DC drive systems (IT systems) in electric vehicles

ISOMETER® iso685…
ISOMETER® iso685 Series

Ground-fault detector for ungrounded AC/DC systems

Details
ISOMETER® iso685…
ISOMETER® iso685-…-B

Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches

Details
ISOMETER® iso685-…-P
ISOMETER® iso685-…-P

Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches and locating current injector

Details
ISOMETER® isoNAV685-D
ISOMETER® isoNAV685-D

Ground-fault monitoring device with instantaneous tripping, frequency nominal system voltage 60 Hz

Details
ISOMETER® isoHR685W-…-I-B
ISOMETER® isoHR685W

Ground-fault detector for subsea cable monitoring

Details
ISOMETER® isoRW685W-D
ISOMETER® isoRW685W-D

Ground-fault monitoring device tailored to the requirements of railway rolling stock applications

Details
ISOMETER® isoRW685W-D-B
ISOMETER® isoRW685W-D-B

Insulation monitoring device especially for railway applications

Details
ISOMETER® iso1065 (IRDH1065)

Insulation monitoring device for subsea cables and umbilicals.

Details
ISOMETER® iso415R
ISOMETER® iso415R Ground Fault Monitoring Device

Insulation monitoring device for unearthed AC, AC/DC and DC main and control circuits

Details
ISOMETER® IR420-D4
ISOMETER® IR420-D4

Ground-fault monitoring device for ungrounded AC control circuits

Details
ISOMETER® IR425-D4
ISOMETER® IR425-D4

Ground-fault monitoring device for ungrounded AC/DC control circuits

Details
ISOMETER® iso1685DP-425/isoHV1685D-425/isoLR1685DP-325
ISOMETER® iso1685DP/isoHV1685D/isoLR1685DP

Insulation monitoring device for unearthed AC, AC/DC and DC power supplies (IT systems)

Details
ISOMETER® isoHR1685DW–925
ISOMETER® isoHR1685DW–925

Insulation monitoring device for mobile, insulated elevating work platforms

Details
ISOMETER® isoLR275 mit AGH-LR
ISOMETER® isoLR275 with AGH-LR

Ground-fault monitoring device for installations with a low-resistance insulation level

Details
ISOMETER® isoPV mit AGH-PV
ISOMETER® isoPV with AGH-PV

Ground-fault monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V

Details
ISOMETER® isoPV425 mit AGH420
ISOMETER® isoPV425 with AGH420

Ground-fault monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V

Details
ISOMETER® isoPV1685/isoPV1685PFR
ISOMETER® isoPV1685 Series

Ground-fault monitoring device for DC systems up to 1500 V in photovoltaic systems

Details
ISOMETER® IR420-D6
ISOMETER® IR420-D6

Offline monitor for de-energized AC, DC and 3(N)AC loads in solidly grounded and ungrounded systems

Details
ISOMETER® isoGEN423
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

Details
ISOMETER® isoRW425
ISOMETER® isoRW425

Ground-fault monitoring device for railway applications up to AC/DC 440 V

Details
ISOMETER® isoES425
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

Details
ISOMETER® isoHV425 mit AGH422
ISOMETER® isoHV425 with AGH422

Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system)

Details
ISOMETER® isoEV425 mit AGH420
ISOMETER® isoEV425 with AGH420

Ground-fault monitoring device for ungrounded DC circuits for charging electric vehicles

Details
ISOMETER® isoCHA425

Insulation monitoring device for unearthed DC systems for the charging of electric vehicles acc. to Japanese charging standard CHAdeMO

Details
ISOMETER® isoCHA425HV mit AGH420-1
ISOMETER® isoCHA425HV with AGH420-1

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

Details
ISOMETER® IR155-3203 / IR155-3204
ISOMETER® IR155 03/04 Series

Ground-fault monitoring device for ungrounded DC drive systems in electric vehicles

Details
ISOMETER® iso165C, iso165C-1

Ground-fault monitoring device (IMD) for ungrounded DC drive systems (IT systems) in electric vehicles

Details