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PDF CT0.2-P Data sheet ( Hoja de datos )
| Número de pieza | CT0.2-P | |
| Descripción | (CT0.1-P - CT0.4-P) Current Transducers | |
| Fabricantes | LEM | |
| Logotipo |  |
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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
10kΩ,
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
MΩ
V
Ω
kΩ
nF
Accuracy-Dynamic performance data
X
εL
TCVOUT
VOE
VOH
TCVOE
tr
BW
Accuracy (excluding offset) @ IPN, TA = 25°C, RL = 10kΩ < ± 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
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