Current Transducers CT 0.1 .. 0.4-P
For the electronic measurement of small currents: AC,DC, mixed,
with a galvanic isolation between the primary circuit and the
secondary circuit.
I
PN
= ± 100..400 mA
V
OUT
= ± 5 V
Electrical data
Primary nominal
current rms
I
PN
(mA)
100
200
400
Primary current,
measuring range
I
PM
(mA)
± 180
± 360
± 720
Type
RoHS since
date code
46129
46054
46234
Features
•
DC & AC earth leakage current
transducer using a flux-gate
principle
•
PCB mounting
•
±
15V power supply
•
±
5V output
@
I
PN
•
Insulated plastic case recognized
according to UL94-V0.
CT 0.1-P
CT 0.2-P
CT 0.4-P
V
C
I
C
R
IS
V
OUT
R
OUT
R
L
C
L
Supply voltage (± 5 %)
Current consumption
Isolation resistance @ 500 VDC
Output voltage (Analog) @ ±
I
PN,
R
L
= 10kΩ
,
T
A
=25°C
Output internal resistance
Load resistance
Capacitive loading
± 15
± 35
> 500
±5
< 51
≥
10
≤
5
V
mA
MΩ
V
Ω
kΩ
nF
Accuracy-Dynamic performance data
X
Advantages
<±1
%of
I
PN
< ± 0.5 %of
I
PN
< ± 0.05 %/K
< ± 50
mV
<±2
mV
< ± 20
mV
<±4
mV/K
<±3
mV/K
<±2
mV/K
≤
20
ms
≤
60
ms
DC .. 7000 Hz
DC .. 11000 Hz
DC .. 18000 Hz
ε
L
TCV
OUT
V
OE
V
OH
TCV
OE
t
r
BW
Accuracy (excluding offset) @
I
PN,
T
A
= 25°C,
R
L
= 10kΩ
Linearity error (0 .. ±
I
PN
)
Temperature coefficient of
V
OUT
(of reading)
Eletrical offset voltage @
I
P
= 0,
T
A
= 25°C
Hysteresis offset voltage
@
I
P
= 0; after an excursion of 1 x
I
PN
@
I
P
= 0; after an excursion of 100 x
I
PN
Temperature coefficient of
V
OE
@ -20..+85°C CT 0.1-P
CT 0.2-P
CT 0.4-P
Response time to 80% of
I
PN
step
90% of
I
PN
step
Frequency bandwidth (- 3 dB)
CT 0.1-P
CT 0.2-P
CT 0.4-P
•
Small size
•
Bandwidth : DC .. up to 18kHz
•
Response time better than 60 ms
•
Cost effective, compact
alternative to classical RCDs
(Residual Current Device)
Applications
•
Earth leakage detection in
transformerless solar inverters
•
1st human contact protection of
PV arrays
•
Failure detection in power sources
•
Symmetrical fault detection
(e.g. after motor inverter)
•
Current leakage detection in
stacked DC sources
•
Single phase or three phase
differential current measurement up
to
±
30A per wire (DC or AC)
General data
T
A
T
S
dCp
dCl
CTI
m
Ambient operating temperature
Ambient storage temperature
Creepage distance
Clearance distance
Comparative tracking index (Group IIIa)
Mass
Standards
- 20 .. + 85 °C
- 25 .. + 85 °C
> 5.5
mm
> 5.5
mm
> 220
25
g
EN 50178: 1997
Application Domain
•
Industrial
copyright protected
Page 1/3
061017/9
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
LEM [ LEM ]
