Current Transducer LA 100-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).
I
PN
=
100 A
16019
Electrical data
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance @
with ± 12 V
with ± 15 V
I
SN
K
N
V
C
I
C
V
d
@ ± 100 A
max
@ ± 120 A
max
@ ± 100 A
max
@ ± 150 A
max
100
0 .. ± 150
T
A
= 70°C
T
A
= 85°C
R
M min
R
M max
R
M min
R
M max
0
0
0
0
50
22
110
33
0
0
20
20
42
14
102
25
A
A
Features
•
Closed loop (compensated) current
transducer using the Hall effect
•
Printed circuit board mounting
•
Insulated plastic case recognized
according to UL 94-V0.
Ω
Ω
Ω
Ω
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
50
mA
1 : 2000
± 12 .. 15
V
10
(@ ± 15 V) +
I
S
mA
2.5
kV
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.
Accuracy - Dynamic performance data
X
Accuracy @
I
PN
,
T
A
= 25°C
L
ε
@ ± 15 V (± 5 %)
@ ± 12 .. 15 V (± 5 %)
Linearity
Offset current @
I
P
= 0,
T
A
= 25°C
Residual current
1)
@
I
P
= 0, after an overload of 3 x
I
PN
Thermal drift of
I
O
- 25°C .. + 85°C
- 40°C .. - 25°C
Reaction time @ 10 % of
I
PN
Response time
2)
@ 90 % of
I
PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
± 0.45
± 0.70
< 0.15
Max
± 0.10
± 0.15
± 0.05 ± 0.25
± 0.10 ± 0.50
< 500
<1
> 200
DC .. 200
Typ
%
%
%
mA
mA
mA
mA
ns
µs
A/µs
kHz
I
O
I
OM
I
OT
t
ra
t
r
di/dt
f
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.
General data
T
A
T
S
R
S
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
Mass
Standards
- 40 .. + 85
- 50 .. + 95
120
128
18
EN 50178 : 1997
°C
°C
Ω
Ω
g
T
A
= 70°C
T
A
= 85°C
3)
Notes :
1)
2)
3)
The result of the coercive field of the magnetic circuit
With a di/dt of 100 A/µs
A list of corresponding tests is available.
060201/8
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
page 1/2
LEM
w w w .lem.com
Dimensions LA 100-P
Bottom view
(in mm. 1 mm = 0.0394 inch)
Left view
Secondary terminals
swiss
made
Terminal + : supply voltage + 12 .. 15 V
Terminal - : supply voltage - 12 .. 15 V
Terminal M : measure
Connection
Standard 00
or N
°
SP ..
Year
Week
Front view
Mechanical characteristics
•
General tolerance
•
Primary through-hole
•
Fastening & connection of secondary
Recommended PCB hole
± 0.2 mm
12.7 x 7 mm
3 pins
0.63 x 0.56 mm
0.9 mm
Remarks
•
I
S
is positive when
I
P
flows in the direction of the arrow.
•
Temperature of the primary conductor should not exceed
100°C.
•
Dynamic performances (di/dt and response time) are best
with a single bar completely filling the primary hole.
•
In order to achieve the best magnetic coupling, the primary
windings have to be wound over the top edge of the device.
•
This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.
060201/8
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
page 2/2
LEM
w w w .lem.com
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