Bender NGRM700 Handbuch - Seite 4

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NGRM700
Measuring current transformer selection
Depending on the system to be monitored, a suitable measuring current transformer is required.
All common measuring current transformers (50 mA or 5 A on the secondary side) can be used.
The following table helps with the choice:
System type
I NGR
Frequency response range
Bender CT Ratio
Connecting cable
I
Δn
(Currents detected)
Type
Bender CT
CT: Terminal k
CT: Terminal l
AC/DC measuring current transformer connection (W...AB)
4
NGRM700_D00292_03_Q_XXEN/09.2019
AC + DC
1...10 A
0...3800 Hz
600:1
max. 10 m (provided cable
or cable of 0.75...1.5 mm²/
AWG18...16)
AC, pulsed AC, DC
W35...120AB
W...AB
k
l
AN420
NGRM700: 50 mA
NGRM700: C
W...AB
N
N
NGR
CD...
AC
5...25 A
42...3800 Hz
600:1
max. 40 m (provided cable
or cable of 0.75...1.5 mm²/
AWG18...16)
AC, pulsed AC
W20...120
W1-S35...W5-S210
W...
k
l
W...S...
k
l
NGRM700: 50 mA
NGRM700: C
50 mm
1.97 in
250 mm
9.84 in
k
l
50mA
C
NGRM...
AC
5...25 A
50/60 Hz
60:5
max. 25 m (4 mm²/AWG12)
max. 40 m (6 mm²/AWG 10)
AC, pulsed AC
CTB31...41
CTB
k
l
NGRM700: 5 A
NGRM700: C
WXS...
–12V
GND
+12V