Bender IRDH575B1W-435 ISOMETER Insulation Monitoring Device

Product Description Bender IRDH575B1W-435 is an ISOMETER insulation monitor for ungrounded IT AC/DC mixed systems. 

It continuously measures insulation resistance to earth and triggers alarms when insulation degrades. The W version features enhanced shock and vibration resistance,

 ideal for marine and mobile harsh working conditions, widely used in power cabinet maintenance replacement.

• Measured System Voltage: AC/DC 20…575V
• Supply Voltage: AC 88…264V / DC 77…286V
• Insulation Measuring Range: 1kΩ ~10MΩ
• Communication: RS485, BMS protocol
• Relay Output: 2 independent alarm relays
• Analog Output: 0/4…20mA isolated
• Display: 4-line backlit LCD
• Mounting: Panel mount
• Working Temp: -20℃ ~ +60℃

• For 3AC, DC and AC/DC hybrid IT isolated systems
• W option: improved anti-shock & anti-vibration capability
• Automatic adaptation to system leakage capacitance
• Built-in self-test function with fault memory

• Supports expansion for earth fault location with EDS modules

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