Catalogs >
BENDER >
ISOMETER® isoNAV685-D-B

ISOMETER® isoNAV685-D-B
8Pages

Add to favorites

Catalog excerpts

ISOMETER® isoNAV685-D-B Insulation monitoring device for offline monitoring of de-energised loads

Open the catalog to page 1

Insulation monitoring device for offline monitoring of de-energised loads Product description The ISOMETER® isoNAV685-D-B is an insulation monitoring device for IT systems in accordance with IEC 61557-8. It is universally applicable in de-energised TN, TT or IT systems. Application • Monitoring of de-energised loads and systems Function The insulation monitoring device ISOMETER® isoNAV685-D-B monitors the entire insulation resistance of systems that are switched off and triggers an alarm when the insulation resistance value falls below a preset response value. ISOMETER® isoNAV685-D-B Device...

Open the catalog to page 2

• Communication protocol Modbus TCP The ISOMETER® has been developed in compliance with the following standards: • BCOM for Bender device communication via Ethernet • Integrated web server for reading out measured values and for parameter setting Measurement method The isoNAV685 series uses the patented AMPPlus measurement method. This measurement method allows concise monitoring of modern power supply systems, also in case of extensive, directly connected DC components and high system leakage capacitances. Operating elements 1 - ON 2 - SERVICE The LED “ON” lights when the device is turned...

Open the catalog to page 3

Connection to a 3(N)AC system Supply voltage Us (see nameplate) via 6 A fuse C onnection to the IT system to be monitored (L1/+, L2, L3/-) Separate connection of KE, E to PE ( K1) Alarm relay 1, available changeover contacts ( K2) Alarm relay 2, available changeover contacts Switchable resistor R for RS-485 bus termination Ethernet interface Digital interface Note: According to DIN VDE 0100-430, devices for protection against a short-circuit can be omitted for the coupling of terminals L1/+, L2, L3/to the IT system ≤ 690 V to be monitored if the wiring is carried out in such a manner as to...

Open the catalog to page 4

Connection to frequency inverters for monitoring in offline mode Digital interface X1 Digital interface Input 1 Input 2 Input 3 RS-485 A RS-485 B +24 V Output 1 Output 2 not used Ground Deactivate Device high active TEST RESET +24 V + Q1 Q2 M+ active adjustable Danger of damage to property due to faulty connections! The device can be damaged if the unit is simultaneously connected to the supply voltage via the X1 interface and via A1/+, A2/-. Do not connect the device simultaneously via X1 and A1/+, A2/- to different supply voltages. Danger of damage to property due to incorrect nominal...

Open the catalog to page 5

Technical data Insulation coordination according to IEC 60664-1/IEC 60664-3 Definitions: Measuring circuit (IC1) (L1/+, L2, L3/-) Supply circuit (IC2) A1, A2 Output circuit 1 (IC3) 11, 12, 14 Output circuit 2 (IC4) 21, 22, 24 Control circuit (IC5) (E, KE), (X1, ETH, X3, X4) Rated voltage 1000 V Overvoltage category III Rated impulse voltage: IC1/(IC2-5) 8 kV IC2/(IC3-5) 4 kV IC3/(IC4-5) 4 kV IC4/IC5 4 kV Rated insulation voltage: IC1/(IC2-5) 1000 V IC2/(IC3-5) 250 V IC3/(IC4-5) 250 V IC4/IC5 250 V Pollution degree for accessible parts on the outside of the device housing (Un < 690 V) 3...

Open the catalog to page 6

Technical data (continuation) Environment/EMC EMC IEC 61326-2-4 4) Ambient temperatures: Operating temperature -25…+55 °C Transport -40…+85 °C Long-term storage -40…+70 °C Classification of climatic conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) 3K23 (except condensation and formation of ice) Transport (IEC 60721-3-2) 2K11 Long-term storage (IEC 60721-3-1) 1K22 Classification of mechanical conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) 3M11 Transport (IEC 60721-3-2) 2M4 Long-term storage (IEC 60721-3-1) 1M12 Area of application ≤ 3000 m NN Operating mode...

Open the catalog to page 7

Ordering information Nominal system voltage range Un Dimension diagram Dimensions in mm Art. no. A set of screw-type terminals1) A set of push-wire terminals Enclosure accessories (terminal cover, 2 mounting clips) 1) included in the scope of delivery Suitable measuring instruments on request! Bender GmbH & Co. KG Londorfer Straße 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • info@bender.de • www.bender.de BENDER Group isoNAV685-D-B_D00264_04_D_XXEN / 03.2021 / © Bender GmbH & Co. KG, Germany – Subject to change! The specified standards take into account the edition valid until...

Open the catalog to page 8

ISOMETER® isoNAV685-D-B 8Pages

Catalog excerpts

All BENDER catalogs and technical brochures

ISOMETER® isoNAV685-D-B
8Pages