Bender IRDH375 Isometer IRDH375-435 Insulation Monitoring Device
Mfr.
Part Number :- Bender
IRDH375 Isometer IRDH375-435
Manufacturer :- Bender
Description :- Bender
IRDH375 Isometer IRDH375-435
Full Description :- The ISOMETER® of
the IRDH375(B) 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 AMPPlus measurement
method 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 IRDH375(B) automatically
adapts itself to the existing system conditions.
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 values 1
kΩ…10 MΩ
Automatic self test,
selectable
Connection for external kΩ indication
Test and reset button
Connection external test and reset button
Two separate alarm relays with two potential-free
changeover contacts
N/O or N/C operation
Alarm relay for system fault (N/C operation)
Backlit LC display
RS-485 interface
Plug-in terminals
Rated insulation
voltage:- AC 800 V
Rated impulse
voltage/pollution degree :- 8 kV/3
Nominal system voltage
Un :- DC 0…650 V
Supply voltage US (also
see nameplate) :- AC 88…264 V
Frequency range US :- 42…460 Hz
Supply voltage US (also see nameplate) :- DC
77…286 V
Power consumption :- ≤
14 VA
Response value Ran1 :- 1 kΩ…10 MΩ
Relative uncertainty
(1…20 kΩ) :- +2 kΩ/+20 %
Relative uncertainty
(1…10 MΩ) :- 0.2 MΩ/+20 %
Measuring voltage Um :-
≤ 40 V
Measuring current Im
(at RF = 0 Ω :- ≤ 220 μA
Permissible extraneous
DC voltage Ufg :- ≤ DC 1200 V
Permissible system
leakage capacitance Ce :- ≤ 500 μF
Cable length :- ≤ 1200
m
Interface/protocol IRDH375B :- RS-485/BMS
Current output IRDH375 (load) :- 400 μA (≤ 12.5 kΩ)
Current output IRDH375B (load) :- 20 mA (≤ 500 Ω)
Operating uncertainty (1…20 kΩ) :- ±1 kΩ/±15 %
Operating uncertainty (1 MΩ…10 MΩ) :- ±0.1 MΩ/±15 %
Rated contact voltage :- AC 250 V/DC 300 V
Making capacity :- AC/DC
5 A
Breaking capacity :- 2 A, AC 230 V, cos phi = 0.4 0.2 A, DC 220 V, L/R = 0.04 s
Ambient temperature (during operation) :- -10…+55 °C
Ambient temperature (during storage) :- -40…+70 °C
rigid/flexible :- 0.2…4
mm²/0.2…2.5 mm²
flexible with ferrules without/with plastic
sleeve:- 0.25…2.5 mm²
Conductor sizes (AWG) :-
24…12
Ambient temperature, during operation :- -25…+70 °C
Ambient temperature for storage :- -40…+85 °C
Screw mounting :- 2 x M4
Vibration resistance :- 1.6 mm/10…25 Hz , 4 g/25…150 Hz
Condition :- Used / Working
Price :- Sales.plcadvance@gmail.com