Product Description
Bender IRDH375-UFDK Insulation Monitoring Device
The Bender A-ISOMETER® IRDH375-UFDK (Article No. B91065011W) is a highly reliable insulation monitoring device designed for the continuous monitoring of unearthed power supply systems (IT systems). It features a robust panel-mount housing equipped with a clear LCD display, an intuitive four-key keypad (INFO/ESC, TEST, RESET, MENU), and LED status indicators for easy operation and diagnostics. The device supports a versatile rated voltage range of 3AC/AC 0…150 V and DC 0…150 V, making it suitable for a wide variety of industrial applications. Additional features include plug-in terminal blocks, an integrated RS485 interface for seamless data communication, and durable relay contacts (AC 250 V 5 A) for effective alarm and control signaling.
Technical Specifications:
- Brand: Bender
- Model: IRDH375-UFDK (Article No. B91065011W)
- Response Value (Ran): 1 kΩ…10 MΩ
- Rated Voltage (Un): 3AC/AC 0…150 V / DC 0…150 V
- Supply Voltage (Us): DC 19.2…72 V
- Power Consumption: 14 VA
- Relay Contacts: AC 250 V, 5 A
- Interface: RS485 (Terminals A/B, TERM)
- Software Version: D183 V1.8

Bender IRDH375-UFDK Insulation Monitoring Device
Shop the Bender IRDH375-UFDK (B91065011W) A-ISOMETER® Insulation Monitoring Device. Designed for unearthed IT systems, featuring a 1kΩ-10MΩ response value, 0-150V AC/DC rated voltage, LCD display, and RS485 interface for reliable industrial electrical safety and monitoring.
| Brand | BENDER |
|---|---|
| Model | IRDH375-UFDK |
| Part No. | 1029805684755 |
| Category | Electrical |
| Link | https://www.echuan-hydraulic.com/product/bender-irdh375-ufdk-insulation-monitoring-device |




