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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422

ISOMETER® isoHV425xx mit Ankoppelgerät AGH422
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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 1

ISOMETER® isoHV425xx with coupling device AGH422 Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system) up to 3(N)AC, AC 1000 V, DC 1000 V Preliminary data sheet

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 2

Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT system) up to 3(N)AC, AC 1000 V, DC 1000 V with coupling device AGH422 Product description The ISOMETER® monitors the insulation resistance of unearthed AC, AC/DC and DC systems (IT systems) with nominal system voltages of 3(N)AC, AC/DC 0…1000 V or DC 0…1000 V. The maximum permissible system leakage capacitance Ce is 150 μF. DC components existing in AC systems do not influence the operating characteristics, when a minimum load current of DC 100 mA flows. A separate supply voltage allows de-energised systems to be...

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 3

Connection monitoring Measurement method The connections to the electrical system (L1/+ / L2/-) and earth (E/KE) as well as the connecting wires from the ISOMETER® to the coupling device are periodically monitored every 24 hours after pressing the test button and connecting the supply voltage. In case of line interruption, the alarm relay K2 switches, the LEDs ON/AL1/AL2 flash and a message appears on the LC display: The ISOMETER® isoHV425 uses the AMP and PCP measurement method. “E.0x” for a fault in the connecting wires between both devices or a system error “E.02” for a fault in the...

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 4

Ordering information Supply voltage Us AC Serial interface Description Mounting clip for screw mounting (1 piece per device) Operating elements 1 - peration LED “ON” flashes in case of interruption of the O connecting wires E/KE or L1(+)/L2(-) or system error. 2 - larm LED “AL1” lights when the values fall below the set response A value of alarm 1 and flashes in case of interruption of the connecting wires E/KE or L1(+)/L2(-), in case of system errors as well as in case of overvoltage (can be activated). 3 - larm LED “AL2” lights when the values fall below the set res onse A p value of...

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 5

Test / Reset The same wire cross section as for A1, A2 is to be used 3 - L1/+, L2/– Connection to the IT system to be monitored 4 - Up, AK1, Connect the terminals of GND, AK2 the AGH422 to the corres ponding terminals of the ISOMETER®. 5 - T/R Connection for the external combined test/reset button 6 - 11, 14 Connection to alarm relay K1 7 - 11, 24 Connection to alarm relay K2 8 - A, B RS-485 communication interface with connectable terminating resistor. Connection to the supply voltage via fuse (line protection). If being supplied from an IT system, both lines have to be protected by a...

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 6

Technical data ISOMETER® isoHV425 Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Definitions: Supply circuit (IC2) A1, A2 Output circuit (IC3) 11, 14, 24 Control circuit (IC4) Up, KE, T/R, A, B, AK1, GND, AK2, M+, MRated voltage 240 V Overvoltage category III Rated impulse voltage: IC2/(IC3-4) 4 kV IC 3/IC4 4 kV Rated insulation voltage: IC2/(IC3-4) 250 V IC 3/IC4 250 V Pollution degree 3 Protective separation (reinforced insulation) between: IC2/(IC3-4) overvoltage category III, 300 V IC 3/IC4 overvoltage category III, 300 V Voltage tests (routine test) acc. to IEC 61010-1:...

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 7

Push-wire terminals: Nominal current Conductor sizes Stripping length Rigid Flexible without ferrules Flexible with ferrules with/without plastic sleeve Multi-conductor flexible with TWIN ferrules with plastic sleeve Opening force Test opening, diameter Other Operating mode continuous operation Mounting cooling slots must be ventilated vertically Minimum horizontal distance between the devices (DIN EN 45545) see note ** Degree of protection, built-in components (DIN EN 60529) IP30 Degree of protection, terminals (DIN EN 60529) IP20 Enclosure material polycarbonate DIN rail mounting acc. to...

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 - 8

BENDER Group isoHV425_D00082_04_D_XXEN / 02.2022 / © Bender GmbH & Co. KG, Germany – Subject to change! The specified standards take into account the edition valid until 02.2022 unless otherwise indicated. Bender GmbH & Co. KG Londorfer Straße 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • info@bender.de • www

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422 8Pages

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ISOMETER® isoHV425xx mit Ankoppelgerät AGH422
8Pages