Product Introduction

The Bender IRDH275-435 is an advanced, microprocessor-controlled insulation monitoring device designed to continuously monitor the insulation resistance of ungrounded AC, AC/DC, and DC systems (IT systems). Utilizing the patented AMPPlus measurement principle, this device adapts automatically to high system leakage capacitances and complex electronic components such as variable frequency drives (VFDs) and power converters. Structurally, it features a rugged panel-mount or DIN-rail housing with a built-in backlit LCD display, user-programmable alarm relays, and an integrated system interface for locating insulation faults during energized operations, ensuring maximum system safety and operational continuity.

✦ Measuring Voltage (Um): ≤ ±50 V

✦ Power Consumption: ≤14 VA / 10 W

✦ Supply Voltage (Us): AC 88...264 V / DC 77...286 V

✦ Insulation Resistance Measuring Range (Rf): 1 kΩ to 10 MΩ

✦ Operating Temperature Range: -25 °C to +55 °C (-13 °F to 131 °F)

✦ Storage Temperature Range: -40 °C to +70 °C (-40 °F to 158 °F)

Applications by Industry

Industry & Brand

✅ Petroleum, Chemical Plants: ABB, Bently Nevada, HIMA, Invensys, Westinghouse, Philips

✅ Marine/Marine Vessels: ABB, GE

✅ Subways, Railways: AB (Allen-Bradley), Schneider, Invensys

✅ Glass Plants: AB (Allen-Bradley)

✅ Printing Plants: AB (Allen-Bradley), GE

✅ Hydroelectric Power Plants: AB (Allen-Bradley), GE, Schneider

✅ Cement Plants: AB (Allen-Bradley), Schneider

✅ Wind Power Plants: ABB, Bachmann

✅ Nuclear Power: AB (Allen-Bradley), ABB, Invensys, Emerson

✅ Thermal Power, Steel Mills: Honeywell, ABB

Product Recommendations

Service for you

✅ 10 years sales experience in control system components field.

✅ High efficiency application.

✅ Reduce the intermediate links between each other.

✅ Professional sales team and quality customer service team.

✅ Wide products range, nearly 70 million inventory parts for customers worldwide.

✅ Competitive price.

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