Current Transducer LA 50-S/SP1
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
=
50 A
0634
Electrical data
Features
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
with ± 15 V
I
SN
K
N
V
C
I
C
@ ± 50 A
max
@ ± 100 A
max
50
0 .. ± 100
R
M min
R
M max
0
0
25
1 : 2000
± 15
10 +
I
S
330
100
A
A
Ω
Ω
mA
V
mA
•
Closed loop (compensated) current
transducer using the Hall effect
•
Insulated plastic case recognized
according to UL 94-V0.
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
Special features
•
I
P
= 0 .. ± 100 A
•
K
N
= 1 : 2000
Advantages
Accuracy - Dynamic performance data
•
•
•
•
•
•
•
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.
ε
X
G
L
Overall accuracy @
I
PN,
T
A
= 25°C
Linearity error
Offset current @
I
P
= 0,
T
A
= 25°C
Thermal drift of
I
O
Response time
1)
@ 90 % of
I
PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
± 0.5
< 0.1
Typ
Max
± 0.1
± 0.4
%
%
mA
mA
µs
A/µs
kHz
I
O
I
OT
t
r
di/dt
f
- 10°C .. + 70°C
± 0.2
<1
> 50
DC .. 150
Applications
General data
T
A
T
S
R
S
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
- 10 .. + 70
°C
- 25 .. + 85
°C
130
Ω
45
g
EN 50178 : 1997
•
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.
Application domain
Note :
1)
With a di/dt of 50 A/µs.
•
Industrial.
060911/7
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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