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CT0.2-P Datasheet Preview

CT0.2-P Datasheet

(CT0.1-P - CT0.4-P) Current Transducers

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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.
IPN = ± 100..400 mA
VOUT = ± 5 V
Electrical data
Primary nominal
current rms
IPN (mA)
100
200
400
Primary current,
measuring range
IPM (mA)
± 180
± 360
± 720
Type
CT 0.1-P
CT 0.2-P
CT 0.4-P
VC
I
C
RIS
V
OUT
ROUT
R
L
CL
Supply voltage (± 5 %)
Current consumption
Isolation resistance @ 500 VDC
Output
voltage
(Analog)
@
±
I
PN,
R=
L
10k,
T =25°C
A
Output internal resistance
Load resistance
Capacitive loading
RoHS since
date code
46129
46054
46234
± 15
± 35
> 500
±5
< 51
10
5
V
mA
M
V
k
nF
Accuracy-Dynamic performance data
X
εL
TCVOUT
VOE
VOH
TCVOE
tr
BW
Accuracy (excluding offset) @ IPN, TA = 25°C, RL = 10k< ± 1 %of IPN
Linearity error (0 .. ± IPN)
< ± 0.5 %of IPN
Temperature coefficient of VOUT (of reading)
< ± 0.05 %/K
Eletrical offset voltage @ IP = 0, TA = 25°C
< ± 50
mV
Hysteresis offset voltage
@ IP = 0; after an excursion of 1 x IPN
<±2
@ IP = 0; after an excursion of 100 x IPN
< ± 20
Temperature coefficient of VOE @ -20..+85°C CT 0.1-P < ± 4
CT 0.2-P < ± 3
mV
mV
mV/K
mV/K
CT 0.4-P < ± 2 mV/K
Response time to 80% of IPN step
90% of I step
PN
Frequency bandwidth (- 3 dB)
20
ms
60
ms
CT 0.1-P DC .. 7000 Hz
CT 0.2-P DC .. 11000 Hz
CT 0.4-P DC .. 18000 Hz
General data
TA Ambient operating temperature
TS Ambient storage temperature
dCp Creepage distance
dCl Clearance distance
CTI Comparative tracking index (Group IIIa)
m Mass
Standards
- 20 .. + 85 °C
- 25 .. + 85 °C
> 5.5
mm
> 5.5
mm
> 220
25 g
EN 50178: 1997
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.
Advantages
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)
Application Domain
Industrial
061017/9
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
copyright protected
Page 1/3
www.lem.com




LEM

CT0.2-P Datasheet Preview

CT0.2-P Datasheet

(CT0.1-P - CT0.4-P) Current Transducers

No Preview Available !

Current Transducer CT 0.1 .. 0.4-P
Isolation characteristics
V Rated isolation voltage rms
b
with IEC 61010-1 standard and following conditions
- Single insulation
- Over voltage category III
- Pollution degree 2
- Heterogeneous field
Vb Rated isolation voltage rms
with EN 50178 standard and following conditions
- Reinforced insulation
- Over voltage category III
- Pollution degree 2
- Heterogeneous field
Vd Rms voltage for AC isolation test, 50 Hz, 1 min
Ve Partial discharge extinction voltage rms @ 10pC
Vw Impulse withstand voltage 1.2/50µs
150
250
2.5
> 1.2
6
If insulated cable is used for the primary circuit, the
voltage category could be improved with the following table :
Cable insulation (primary)
Category
HAR 03
300V CAT III
HAR 05
400V CAT III
HAR 07
500V CAT III
V rms
V rms
kV
kV
kV
061017/9
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
Page 2/3
www.lem.com


Part Number CT0.2-P
Description (CT0.1-P - CT0.4-P) Current Transducers
Maker LEM
Total Page 3 Pages
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