Product Description
Bender IR425-D4-1
The Bender ISOMETER® IR425-D4-1 is a high-performance insulation monitoring device designed for AC, 3(N)AC, AC/DC, and DC IT systems (unearthed systems). It continuously monitors the insulation resistance to ground, providing early detection of insulation faults to enhance electrical safety and prevent costly downtime. Equipped with a clear LC display and two separately adjustable response values for pre-alarm and main alarm, the IR425-D4-1 is ideal for a wide range of applications, including control circuits, auxiliary circuits, and systems with frequency converters or DC components.
Technical Specifications:
- Nominal System Voltage (Un): AC/DC 0…300 V
- Frequency Range: DC, 1…460 Hz
- Response Value Range (R an1, R an2): 1 kΩ…10 MΩ
- Output Relays: 2 x 1 changeover contact (N/O or N/C operation)
- Supply Voltage (Us): AC/DC 24…240 V
Bender IR425-D4-1
Bender IR425-D4-1 ISOMETER® insulation monitoring device for unearthed AC/DC IT systems up to 300V. Ensures electrical safety and prevents system failures.
