Isolationsüberwachungsgeräte (auch Isolationswächter) überwachen permanent den Isolationswiderstand von IT-Systemen (ungeerdete Netze) und geben bei Unterschreitung eines Ansprechwertes eine Meldung ab.
Zur Messung wird das Gerät zwischen dem IT-System und dem Schutzleiter (PE) angeschlossen und dabei dem Netz ein Messstrom überlagert, der von einer Messschaltung erfasst und ausgewertet wird. Isolationsüberwachungsgeräte erkennen Verschlechterungen des Isolationsniveaus frühzeitig und sicher.
29 Products found
Ground-fault detector for ungrounded AC/DC systems
Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches
Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches and locating current injector
Ground-fault monitoring device with instantaneous tripping, frequency nominal system voltage 60 Hz
Ground-fault monitoring device for offline monitoring of de-energized loads
Ground-fault detector for subsea cable monitoring
Ground-fault monitoring device tailored to the requirements of railway rolling stock applications
Insulation monitoring device especially for railway applications
Insulation monitoring device for subsea cables and umbilicals.
Device combination for ground-fault monitoring in medium-voltage systems
Insulation monitoring device for unearthed AC, AC/DC and DC main and control circuits
Ground-fault monitoring device for ungrounded AC control circuits
Ground-fault monitoring device for ungrounded AC/DC control circuits
Insulation monitoring device for unearthed AC, AC/DC and DC power supplies (IT systems)
Insulation monitoring device for mobile, insulated elevating work platforms
Ground-fault monitoring device for installations with a low-resistance insulation level
Ground-fault monitoring device for photovoltaic systems up to AC 793 V/DC 1100 V
Ground-fault monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V
Insulation monitoring device for unearthed systems in photovoltaic systems
Ground-fault monitoring device for DC systems up to 1500 V in photovoltaic systems
Offline monitor for de-energized AC, DC and 3(N)AC loads in solidly grounded and ungrounded systems
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) up to 3(N)AC, AC 400 V, DC 400 V
Ground-fault monitoring device for railway applications up to AC/DC 440 V
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) for energy storage devices up to AC/DC 400 V
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system)
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
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
Ground-fault monitoring device for ungrounded DC drive systems in electric vehicles
Insulation monitoring device for unearthed drive systems (IT systems) in electric and hybrid vehicles
Ground-fault detector for ungrounded AC/DC systems
Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches
Ground-fault monitoring device for demanding applications, variant with integrated system isolating switches and locating current injector
Ground-fault monitoring device with instantaneous tripping, frequency nominal system voltage 60 Hz
Ground-fault monitoring device for offline monitoring of de-energized loads
Ground-fault detector for subsea cable monitoring
Ground-fault monitoring device tailored to the requirements of railway rolling stock applications
Insulation monitoring device especially for railway applications
Insulation monitoring device for subsea cables and umbilicals.
Device combination for ground-fault monitoring in medium-voltage systems
Insulation monitoring device for unearthed AC, AC/DC and DC main and control circuits
Ground-fault monitoring device for ungrounded AC control circuits
Ground-fault monitoring device for ungrounded AC/DC control circuits
Insulation monitoring device for unearthed AC, AC/DC and DC power supplies (IT systems)
Insulation monitoring device for mobile, insulated elevating work platforms
Ground-fault monitoring device for installations with a low-resistance insulation level
Ground-fault monitoring device for photovoltaic systems up to AC 793 V/DC 1100 V
Ground-fault monitoring device for photovoltaic systems up to AC 690 V/DC 1000 V
Insulation monitoring device for unearthed systems in photovoltaic systems
Ground-fault monitoring device for DC systems up to 1500 V in photovoltaic systems
Offline monitor for de-energized AC, DC and 3(N)AC loads in solidly grounded and ungrounded systems
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) up to 3(N)AC, AC 400 V, DC 400 V
Ground-fault monitoring device for railway applications up to AC/DC 440 V
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) for energy storage devices up to AC/DC 400 V
Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system)
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
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
Ground-fault monitoring device for ungrounded DC drive systems in electric vehicles
Insulation monitoring device for unearthed drive systems (IT systems) in electric and hybrid vehicles