BENDER IRDH575

The BENDER IRDH575 is an advanced insulation monitoring device with several remarkable features and capabilities: - **Versatile System Compatibility**: It is designed for insulation resistance monitoring of unearthed power supplies in IT systems, including 3(n)AC, AC/DC, and DC systems. It can handle a wide range of voltage levels, suitable for systems with a voltage range of 20…575V/340…760V. Moreover, it can operate effectively even in AC systems that have extensive DC-supplied loads such as rectifiers, converters, or thyristor-controlled DC drives. - **Accurate Monitoring Performance**: The device offers an accurate response range from 1 kΩ to 10 MΩ, allowing for precise monitoring of the insulation resistance of the system. This enables timely detection of any decrease in the insulation resistance below the set response value, and it promptly sends out an alarm signal to notify the relevant personnel for prompt handling.

- **User-Friendly Interface and Display**: It is equipped with an information button that can display various parameters and the leakage capacitance information of the system, providing users with essential data for analysis and understanding. The backlit liquid crystal display with 4×16 characters offers clear visibility of the device's operating status and relevant information. - **Comprehensive Protection and Control Functions**: It has a comprehensive self-monitoring function that includes a system fault alarm relay, which can monitor the device's own operating status. In case of a system fault, it can send out an alarm in a timely manner. Additionally, it is equipped with internal/external test and reset buttons for convenient testing and fault reset operations. There are also two independent alarm relays with selectable normally open/normally closed operations to meet different application requirements. - **Excellent Communication and Expansion Capabilities**: The IRDH575 is furnished with an RS-485 interface, facilitating communication with other devices and enabling remote monitoring and data transmission. It also has a data storage function that can record the device's operating data for subsequent analysis and query. Furthermore, it can be extended to an insulation fault location system for up to 1080 circuits, and it has an adjustable insulation fault locating current for quick and accurate fault location. In summary, the BENDER IRDH575 is a highly reliable and functional insulation monitoring device, suitable for a wide range of applications in industrial, energy, and special high-reliability power supply fields to ensure the safe and stable operation of electrical systems.