Bender A-ISOMETER IRDH375 - Technical Data

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Technical data IRDH375
Insulation coordination acc. to IEC 60664-1
Rated insulation voltage AC 800 V
Rated impulse withstand voltage/contamination level 8 kV / 3
Voltage test acc. to IEC 60255-5 3 kV
Operating mode continuous operation
System being monitored
Nominal voltage range U
n
3 AC 0...793 V*
Frequency range (for f<50 Hz see characteristic curve) 50...400 Hz
Nominal voltage range U
n
DC 0...650 V*
Supply voltage
Supply voltage U
s
(see nameplate) AC 40...400 Hz 88...264 V*
DC 77...286 V*
Max. power consumption 14 VA
Response values
Response value R
Alarm1/Alarm2
1 kΩ ... 10 MΩ
Relative percentage error (10kΩ...10MΩ) 0% ... +20%
Relative percentage error (1kΩ...10kΩ) +2 kΩ
Hysteresis 25%, +2 kΩ
Measuring time see characteristic curves
System leakage capacitance C
e
max. 500 µF
Factory setting 150 µF
Measuring circuit
Measuring voltage U
m
(peak value) 40 V
Measuring current I
m
220 µA
Internal DC resistance R
i
181 kΩ
Impedance Z
i
, at 50 Hz >180 kΩ
Technical data