Attachment 2 - Bender iso685 Cutsheet.pdf
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This is a product brochure for the ISOMETER® iso685, an insulation monitoring device manufactured by Bender GmbH & Co. KG. The document describes the device's features, benefits, installation options, and technical capabilities for electrical system insulation monitoring applications.
The iso685 continuously monitors insulation resistance of systems to earth and includes advanced measurement capabilities for voltage, frequency, and capacitance (V/f/C measurement). Key features include early detection of insulation faults, scalable history memory for fault analysis, the ability to locate faults without switching off the system, and an integrated web server for remote parameter access and data analysis. The device offers multiple installation variants: standard mounting on top-hat rail or with screw fastening, iso685-D with integrated display, and iso685-S with remote display capability. Additional specialized variants include the iso685-B with decoupling switch for mains disconnection in coupled networks, iso685-P with integrated test current generator for automatic or manual insulation fault location, isoRW685W-D(-B) for railway applications tested to DIN EN 50155, isoxx685W variants with increased shock and vibration resistance and expanded temperature range (-40 to +70°C), and isoHR685W for submarine cable monitoring in oil and gas applications. The device features a commissioning wizard with predefined measurement profiles (power circuits, control circuits, generator, high capacitance, inverter configurations), configurable inputs and outputs, Modbus TCP protocol support, and ISOnet capability enabling operation of up to 20 linked IT systems in coupled networks through Ethernet connectivity with automatic measuring sequence regulation.
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ISOMETER®
iso685 Insulation monitoring for the highest demands
Do you want to save costs and increase the safety level of your electrical system even further? With the numerous variants of the iso685 insulation monitoring device, you have the right device for every application and benefit from the simplest operation with maximum reliability and innovative measuring methods.
Insulation monitoring devices continuously monitor the insulation resistance of a system to earth. In addition, the iso685 is state of the art with its voltage, frequency and capacitance measurement.
Innovative insulation monitoring for maximum system availability
Key features:
| ▪ Early detection of insulation faults |
| ▪ Insulation fault analysis with scalable |
history memory
▪ Find insulation faults without switching off
Key benefits:
| ▪ Increased operational safety |
| ▪ Planability of maintenance |
Product features:
| ▪ Measurement V/f/C |
| ▪ IsoGraph |
| ▪ Predefined measuring profiles |
| ▪ Customised measuring profiles |
| ▪ Configurable inputs and outputs |
| ▪ Web server |
| ▪ Modbus TCP |
| ▪ Permanent coupling monitoring |
| ▪ Commissioning wizard |
Cost benefits:
| ▪ No additional devices required |
| ▪ Self-explanatory commissioning |
| ▪ Extensively configurable |
| ▪ Simple operability |
Simple commissioning, reliable analysis
Commissioning wizard All device variants offer a commissioning wizard that queries the most important settings immediately after switching on for the first time. Pre-selection of the appropriate measurement method and the associated parameters is conveniently carried out using predefined profiles:
Alarm 2 5.6.9
10 kΩ min.
max.
1 kΩ
10MΩ
System type 1.3
• DC
o AC o 3AC
Language 5.1 o Deutsch
• English o Espanõl o Français o Norsk
Alarm 2 5.6.9
10 kΩ min.
max.
1 kΩ
10MΩ
• English o Espanõl o Français o Norsk
Profile 5.6.7
• Power circuits o Control circuits o Generator o High capacitance o Inverter>10 Hz o Inverter<10 Hz
Coupling 1.4
• None o AGH150W-AK16C o AGH204S-AK80 o AGH204S-AK160 o AGH520S o AGH676S-4
Commissioning 5.6
Please set response value for R(an1) for
Alarm 1.
8/9
Alarm 2 5.6.9
10 kΩ min.
max.
1 kΩ
10MΩ
System type 1.3
• DC
• English o Espanõl o Français o Norsk
Profile 5.6.7
• Power circuits o Control circuits o Generator o High capacitance o Inverter>10 Hz o Inverter<10 Hz
Coupling 1.4
• None o AGH150W-AK16C o AGH204S-AK80 o AGH204S-AK160 o AGH520S o AGH676S-4
Alarm 2 5.6.9
10 kΩ min.
max.
1 kΩ
10MΩ
System type 1.3
• DC
• English o Espanõl o Français o Norsk
Alarm 2 5.6.9
10 kΩ min.
max.
1 kΩ
10MΩ
• English o Espanõl o Français o Norsk
Profile 5.6.7
• Power circuits o Control circuits o Generator o High capacitance o Inverter>10 Hz o Inverter<10 Hz
Coupling 1.4
• None o AGH150W-AK16C o AGH204S-AK80 o AGH204S-AK160 o AGH520S o AGH676S-4
Commissioning 5.6
Please set response value for R(an1) for
Alarm 1.
8/9
Alarm 2 5.6.9
10 kΩ min.
max.
1 kΩ
10MΩ
System type 1.3
• DC
• English o Espanõl o Français o Norsk
Profile 5.6.7
• Power circuits o Control circuits o Generator o High capacitance o Inverter>10 Hz o Inverter<10 Hz
Coupling 1.4
• None o AGH150W-AK16C o AGH204S-AK80 o AGH204S-AK160 o AGH520S o AGH676S-4
Web server The devices in the iso685 product family have an integrated web server. This enables convenient access to all device parameters from PCs or mobile devices as well as analysing the data recorded by the iso685.
Interfaces The integrated Ethernet interface supports data exchange both within the Bender product portfolio (BCOM) and with third-party devices or software packages (Modbus TCP). Configurable inputs and outputs allow simple exchange of status information or measured values. Sensors for insulation fault location (EDS) are integrated via a serial interface.
Locate insulation faults quickly and easily The iso685-...-P device variant has an integrated test current generator. Together with the insulation fault locators of the ISOSCAN family (e.g. EDS44x and EDS309x) and the corresponding measuring current transformers, a system for insulation fault location can easily be set up.
This enables the faulty part of the system to be localised quickly. Insulation fault location is carried out during operation; it is not necessary to switch off the system for this purpose. Information about the fault location is displayed in a central location.
Fast insulation fault location during operation iso685 and EDS44x
IT-System
EDS aus R(an) 40kΩ/10kΩ
O K
>20 MΩ
L1 L2 L3 N
PE
US
Un
6A
US
Zu den Verbrauchern Zu den Verbrauchern6A
Installation variants
The iso685 is available in different installation variants:
| ▪ For mounting on a top-hat rail or with a screw fastening |
| ▪ iso685-D with integrated display |
| ▪ iso685-S with remote display for mounting in the switch cabinet door or |
as a combination of basic device on the top-hat rail and operating unit in the switch cabinet door
The FP200 display unit is mounted in the front using retaining clips and connected to the displayless base unit via a RJ45 connection cable supplied. This installation variant allows the device to be displayed in the front of the switch cabinet without having to install the mains connection with up to 1,000 V.
Insulation monitoring As individual as your needs
Standardised insulation monitoring in coupled systems
The variants with the identifier ‘-B’ or ‘-P’ are suitable for use in coupled networks. The iso685 can actively and independently disconnect itself from the network to be monitored via an internal mains disconnector. This makes it possible to operate several insulation monitoring devices in coupled systems without them influencing each other when the coupling switches are closed.
This function, which Bender calls ISOnet, corresponds to the REDC (Remote enabling and disabling command).
All iso685s working in ISOnet mode are connected to each other via Ethernet and regulate the measuring sequence fully automatically. This enables ISOnet operation with up to 20 linked IT systems.
IT-System 1 IT-System 2HV
UV1
HV
UV1
iso685 EDS440 iso685EDS440
Ethernet
M M M MM
Further information on the iso685 can be found here:
iso685-...-B decoupling switch for mains disconnection in coupled networks mains disconnection via digital input, mains disconnection via ISOnet iso685-...-P same function as -B + integrated test current generator automatic or manual insulation fault location isoRW685W-D(-B) especially for railway applications/rolling stock tested according to DIN EN 50155 isoxx685W-... devices with increased shock and vibration resistance increased temperature range from -40 to +70 °C isoHR685W especially for monitoring submarine cables in the oil and gas industry
ISOsync for capacitively coupled networks
Other variants be nd er .d e
Bender GmbH & Co. KG
Londorfer Straße 65 35305 Grünberg Germany
Tel.: +49 6401 807-0 info@bender.de www.bender.de/en
Photos: Adobe Stock (© MclittleStock) and Bender Archive.
2218en / 01.2025 / © Bender GmbH & Co. KG, Germany – Subject to change without notice!
The standards stated take into account the edition valid at the time of printing.
File details come from the government source that posted it. Updated .