Product Description
Bender IRDH275B-435 Insulation monitoring equipment
The Bender ISOMETER® IRDH275B-435 is a high-performance insulation monitoring device designed for unearthed AC, AC/DC, and DC systems (IT systems). It utilizes the advanced AMP Plus measurement principle, making it suitable for modern power supply systems that often include rectifiers, converters, and variable-speed drives. This device continuously monitors the insulation resistance, providing early warnings of insulation faults to prevent system downtime and enhance electrical safety. Featuring a high-resolution graphic LC display, it offers clear visualization of measured values, device parameters, and historical data. With its wide voltage range and configurable alarm relays, the IRDH275B-435 is a versatile and reliable solution for critical applications in industries such as healthcare, data centers, manufacturing, and renewable energy.
Technical Specifications:
- Model: ISOMETER® IRDH275B-435
- Nominal System Voltage (Un): AC/DC 0…793 V, DC 0…650 V
- Supply Voltage (Us): AC 100…240 V (50…60 Hz) / DC 100…240 V
- Response Value Range (R an): 1 kΩ…10 MΩ
- Measurement Principle: AMP Plus (Adapted Measuring Pulse)
- Operating Temperature: -40 °C to +70 °C (-40 °F to +158 °F)
- Outputs: 2 x alarm relays (changeover contacts), 1 x system fault relay (N/O contact)
- Standards Compliance: DIN EN 61557-8
Bender IRDH275B-435 Insulation monitoring equipment
Bender IRDH275B-435 ISOMETER® insulation monitoring device for unearthed IT systems. Monitors AC, AC/DC, and DC networks up to 793 V, featuring the AMP Plus measurement principle for reliable fault detection in systems with converters and drives.
