The Bender IRDH275B (Art. No. B91065133W) is a state-of-the-art insulation monitoring device engineered for continuous supervision of ungrounded (IT) AC and DC systems. Designed to enhance electrical safety, it detects insulation faults at an early stage, helping to prevent leakage currents and operational failures in critical environments.

Supporting voltage ranges up to 793V AC / 650V DC, the IRDH275B features a high-contrast LCD display, configurable alarm relays, and a wide array of digital and analog interfaces for seamless integration with industrial control and energy systems.

🔧 Key Features:

✅ Continuous insulation resistance monitoring for IT systems
✅ Suitable for AC, DC, and mixed networks up to 793V AC / 650V DC
✅ Built-in LCD screen for status and diagnostics
✅ Configurable relay outputs for alarm signaling
✅ Supports communication via multiple digital/analog interfaces
✅ Model: IRDH275B | Article: B91065133W | Manufacturer: Bender

🔗 Ideal For:

✔ Industrial and utility energy distribution
✔ High-voltage ungrounded (IT) systems
✔ Power plants, data centers, and process industries
✔ Preventive maintenance and safety assurance

📦 Includes:

✔ Bender IRDH275B monitoring device
✔ Mounting accessories
✔ User manual and quick setup guide
✔ Factory-labeled packaging

🔌 Technical Details:

• Model: IRDH275B
• Article Number: B91065133W
• Monitoring Voltage: Up to 793V AC / 650V DC
• System Type: IT (ungrounded) systems
• Display: Integrated LCD screen
• Interfaces: Digital and analog I/O, relay contacts
• Function: Insulation resistance monitoring
• Installation: DIN rail or panel mount
• Manufacturer: Bender GmbH & Co. KG
• Country of Origin: Germany

🚀 Enhance electrical safety — with Bender IRDH275B insulation monitoring.