Product Description
Bender IRDH265-422 Insulation Monitoring Device
The Bender IRDH265-422 is an advanced insulation monitoring device (IMD) designed for unearthed AC, AC/DC, and DC power systems (IT systems). It is particularly suited for modern power systems that include variable-speed drives, converters, and power supplies with high leakage capacitances. Utilizing Bender’s patented AMP measurement method, the IRDH265-422 provides continuous monitoring of the insulation resistance to detect and signal insulation faults at an early stage. It features two separately adjustable response value relays, an intuitive LC display for easy configuration and value reading, and an RS-485 interface for remote monitoring. This device is essential for ensuring operational safety and system availability in critical applications such as hospitals, data centers, industrial plants, and renewable energy systems.
Technical Specifications:
- Nominal System Voltage (U_n): AC/3(N)AC 0…480 V, DC 0…480 V
- Frequency Range (f_n): DC, 0.1…460 Hz
- Supply Voltage (U_S): AC 100…240 V (50…60 Hz); DC 100…240 V
- Response Value Range (R_an1/R_an2): 1 kΩ…10 MΩ
- Output Relays: 2 x 1 changeover contact (Alarm 1, Alarm 2), N/C or N/O operation selectable
- Interface: RS-485 (BMS protocol) for data exchange
- Mounting: DIN rail mounting
Bender IRDH265-422 Insulation Monitoring Device
Buy the Bender IRDH265-422, an advanced insulation monitoring device for unearthed AC/DC IT systems. Ensures electrical safety and prevents downtime by detecting insulation faults early. Features an LC display, RS-485 interface, and adjustable response values.
