Bender ISO686-D-B Isometer

The ISO686-D-B Bender isometer series is a highly advanced insulation monitoring solution compliant with IEC 61557-8, designed for use in AC, DC, and AC/DC IT (unearthed) systems. Supporting extensive DC-supplied loads such as rectifiers, inverters, and variable-speed drives, the ISOMETER® iso685 offers cutting-edge features including predefined measurement profiles, integrated web server functionality, and robust remote communication options via Modbus TCP/RTU.

Applications

Ideal For:

• AC, DC, or AC/DC main circuits.
• AC/DC circuits with directly connected DC components (rectifiers, converters, variable-speed drives).
• UPS systems and battery-powered systems.
• Heaters with phase control technology.
• Systems with switched-mode power supplies.
• IT systems with high leakage capacitances.

ISOMETER® iso686-D-B Variant Overview

iso 685-D

• Nominal System Voltage: AC 0…690 V; 1…460 Hz / DC 0…1000 V
• Supply Voltage: AC 24…240 V; 50…400 Hz / DC 24…240 V
• Display: Integrated graphical LC display
• Option W: No
• Article Number: B91067010

iso685W-D

• Nominal System Voltage: AC 0…690 V; 1…460 Hz / DC 0…1000 V
• Supply Voltage: AC 24…240 V; 50…400 Hz / DC 24…240 V
• Display: Integrated graphical LC display
• Option W: Extreme conditions (-40…+70°C, 3K23, 3M12)
• Article Number: B91067010W

iso685-S + FP200

• Nominal System Voltage: AC 0…690 V; 1…460 Hz / DC 0…1000 V
• Supply Voltage: AC 24…240 V; 50…400 Hz / DC 24…240 V
• Display: No integrated display (operated via FP200 front panel)
• Option W: No
• Article Number: B91067210

iso685W-S + FP200

• Nominal System Voltage: AC 0…690 V; 1…460 Hz / DC 0…1000 V
• Supply Voltage: AC 24…240 V; 50…400 Hz / DC 24…240 V
• Display: No integrated display (operated via FP200 front panel)
• Option W: Extreme conditions (-40…+70°C, 3K23, 3M12)
• Article Number: B91067210W

Optional Accessories for ISOMETER® iso685

Coupling Devices:

• AGH150W-4 (Art. No.: B98018006)
• AGH204S-4 (Art. No.: B914013)
• AGH520S (Art. No.: B913033)
• AGH676S-4 (Art. No.: B913055)

Additional Accessories:

• Set of screw terminals (Art. No.: B91067901) (included in delivery)
• Set of push-wire terminals (Art. No.: B91067902)
• Enclosure accessories: Terminal cover, 2 mounting clips (Art. No.: B91067903) (included in delivery)

Key Features & Benefits

✅ Universal IT System Coverage: AC, DC, and AC/DC monitoring with DC loads.

✅ Flexible Communication: Modbus TCP/RTU, RS-485/BS, and web server integration.

✅ Visual Monitoring: Graphical isoGraph and real-time resistance trends (on display models).

✅ Reliable in Harsh Environments: W-option versions built for extreme conditions.

✅ Comprehensive Diagnostics: Local and remote system insight via the integrated web server or COMTRAXX® Gateway.

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