New IRDH275B-435 Bender Ground Fault Detector / Insulation Monitor

Description

New IRDH275B-435 Bender Ground Fault Detector / Insulation Monitor
New
IRDH275B-435
Manufacturer:
Bender
Manufacturer Part Number: IRDH275B-435
Original Packaging:  Yes
Instructions: Yes
Nominal Voltage Un:    AC 0...793V /DC 0...650 V
Supply Voltage US:      AC 88...264 / DC 77...286 V
ISOMETER® IRDH27
Insulation monitoring device for AC and DC IT systems
Application main circuits with connected frequency converters
According to IEC 61557-8
Automatic adaptation to the system leakage capacitance
Info button to display the device setting
The ISOMETER® of the IRDH275 series is designed to monitor the insulation resistance of unearthed main circuits (IT systems) AC, AC / DC 0…793 V resp. DC 0…650 V. The
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measuring principle meets the particular requirements of modern power supplies which often include rectifiers, converters, thyristor-controlled DC drives and directly connected DC components. In these systems often high leakage capacitances against earth occur due to interference suppression measures. The IRDH275 automatically adapts itself to the existing system conditions.
In combination with a coupling device, the Isometers can also be used for higher voltages. An external supply voltage allows de-energized systems to be monitored too. For door mounting into distribution panels, refer to type IRDH375(B).
Features:
Insulation monitoring for unearthed AC, AC/DC systems 0…793 V, DC 0…650 V
Nominal voltage extendable via coupling device
Two separately adjustable response values1 kΩ…10 MΩ
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Plus
measurement method
Automatic adaptation to the system leakage capacitance
Info button to display device settings and system leakage capacitance
Self monitoring with automatic alarm
Automatic self test, selectable
Connection for external kΩ indication
Test and reset button
Connection external test/reset button
Two separate alarm relays with two voltage-free changeover contacts
N/O or N/C operation
Backlit LC display
RS-485 interface