Product Description
Bender ISO685-S-P Insulation Monitoring Device
The Bender ISOMETER® iso685-S-P is an advanced insulation monitoring device (IMD) designed for unearthed IT systems (AC, DC, or mixed AC/DC) in accordance with IEC 61557-8. It continuously monitors the insulation resistance of a system, providing early detection of insulation faults to enhance electrical safety and prevent system downtime. This device is suitable for a wide range of applications, including electric vehicle charging stations, solar power installations, industrial control systems, and power distribution. The integrated display provides real-time values, device status, and historical data, while communication interfaces allow for remote monitoring and integration into larger control systems.
Technical Specifications:
- Nominal System Voltage (Un): AC/DC 0…1000 V, 50…400 Hz
- Supply Voltage (Us): DC 24…240 V / AC 100…240 V (50/60 Hz)
- Response Value Range (R_an): 1 kΩ…10 MΩ
- Operating Temperature: -40 °C … +70 °C
- Display: High-resolution graphic LC display
- Standards Compliance: IEC 61557-8, UL 1053
- Interface: BMS interface (e.g., Modbus TCP/RTU via gateway), RS-485

Bender ISO685-S-P Insulation Monitoring Device
Bender ISO685-S-P insulation monitoring device for unearthed AC, DC, and AC/DC IT systems. Ensures electrical safety and system reliability by continuously monitoring insulation resistance up to 1000V.







