Product Description
Bender W465-A26
The Bender W465-A26 is an advanced ISOMETER® designed for the continuous monitoring of insulation resistance in unearthed AC, AC/DC, and DC systems (IT systems). This ground-fault monitor is engineered to provide early detection of insulation faults, enhancing the operational reliability and safety of electrical installations. It is suitable for a wide range of applications, including industrial control circuits, medical facilities, and mobile power generators. The device features an intuitive LCD display for real-time monitoring of insulation values and system parameters, along with two separately adjustable response relays to signal alarms when insulation resistance falls below a preset threshold, ensuring proactive maintenance and preventing system downtime.
Technical Specifications:
- Nominal System Voltage (Un): AC/DC 0…690 V
- Frequency Range (fn): DC, 15…460 Hz
- Response Value Range (R_an): 1 kΩ…10 MΩ
- Supply Voltage (Us): AC 100…240 V, 50…60 Hz / DC 100…240 V

Bender W465-A26
Bender W465-A26 ISOMETER® ground-fault monitor for continuous insulation monitoring in unearthed AC/DC IT systems up to 690V. Ensures electrical safety and system uptime.









