
Current Transducer LA 200-P
For the electronic measurement of currents : DC, AC, pulsed...,
with a galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
Electrical data
I
PN
I
P
R
 M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance @
200
0 .. ± 300
A
A
T
A
 = 70°C
R
M min
R
M max
R
M min
R
M max
0
30
0
8
0
60
0
12
T
A
 = 85°C
with ± 12 V
@ ± 200 A 
max
@ ± 250 A 
max
@ ± 200 A 
max
@ ± 300 A 
max
0
0
0
0
26
4
56
8
with ± 15 V
I
SN
K
 N
V
C
I
C
V
d
Secondary nominal r.m.s. current
Conversion ratio
Supply  voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
100
1 : 2000
± 12 .. 15
16
 (@ ± 15 V) + 
I
S
mA
3
mA
V
kV
Accuracy - Dynamic performance data
X
Accuracy @ 
I
PN
 , 
T
A
 = 25°C
@ ± 15 V (± 5 %)
@ ± 12 .. 15 V (± 5 %)
± 0.40
± 0.65
< 0.15
%
%
%
e
L
Linearity
Typ
Max
± 0.20
± 0.25
I
O
I
OM
I
OT
Offset current @ 
I
P
 = 0, 
T
 = 25°C
Residual current
 1) 
@ 
I
P 
= 0, after an overload of 3 x
 I
PN
Thermal drift of 
I
O
mA
mA
mA
mA
0°C .. + 70°C
- 25°C ..  + 85°C
± 0.10 ± 0.25
± 0.10 ± 0.30
t
ra
t
di/dt
f
Reaction time @ 10 % of 
I
Response time
 2) 3)
 @ 90 % of
 I
P max
di/dt
accurately followed
 3)
Frequency bandwidth
 3)
 (- 1 dB)
< 500
< 1
> 200
DC .. 100
ns
μs
A/μs
kHz
General data
T
A
T
S
R
 S
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
- 25 .. + 85
- 40 .. + 90
76
80
40
EN 50178
°C
°C
T
A
 = 70°C
T
A
 = 85°C
m
Mass
Standards
 4)
g
Notes :
1)
The result of the coercive field of the magnetic circuit
2)
With a di/dt of 100 A/μs
3)
The primary conductor is best filling the through-hole and/or the return
of the primary conductor is above the top of the transducer
4)
A list of corresponding tests is available
Features
 Closed loop (compensated) current
transducer using the Hall effect
 Printed circuit board mounting
 Insulated plastic case recognized
according to UL 94-V0.
Advantages
 Excellent accuracy
 Very good linearity
 Low temperature drift
 Optimized response time
 Wide frequency bandwidth
 No insertion losses
 High immunity to external
interference
 Current overload capability.
Applications
 AC variable speed drives and servo
motor drives
 Static converters for DC motor drives
 Battery supplied applications
 Uninterruptible Power Supplies
(UPS)
 Switched Mode Power Supplies
(SMPS)
 Power supplies for welding
applications.
I
PN
=
200 
A
980716/6
LE M  C omponents
www.lem.com