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LA125-P-SP4 Datenblatt(PDF) 1 Page - LEM

Teilenummer LA125-P-SP4
Bauteilbeschribung  Current Transducer
Download  3 Pages
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Hersteller  LEM [LEM]
Direct Link  http://www.lem.co.jp/HQ/en
Logo LEM - LEM

LA125-P-SP4 Datenblatt(HTML) 1 Page - LEM

  LA125-P-SP4 Datasheet HTML 1Page - LEM LA125-P-SP4 Datasheet HTML 2Page - LEM LA125-P-SP4 Datasheet HTML 3Page - LEM  
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
Page 1/3
090608/14
I
PN = 125 A
Features
Closed loop (compensated)
current transducer using the Hall
effect
Printed circuit board mounting
Isolated plastic case recognized
according to UL 94-V0.
Special features
K
N
= 1: 2000
T
A
= - 40°C .. + 85°C
Potted.
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.
Application domain
Traction.
Current Transducer LA 125-P/SP4
For the electronic measurement of currents: DC, AC, pulsed...,
with galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
Electrical data
I
PN
Primary nominal current rms
125
A
I
PM
Primary current, measuring range
0 .. ± 300
A
R
M
Measuring resistance
T
A = 70°C
T
A = 85°C
R
M minRM max
R
M minRM max
with ± 12 V
@ ± 125 A
max
0
89
0
85
@ ± 200 A
max
0
29
0
25
with ± 15 V
@ ± 125 A
max
0
134
0
130
@ ± 200 A
max
0
54
0
50
@ ± 300 A
max
0
11
0
7
I
SN
Secondary nominal current rms
62.5
mA
K
N
Conversion ratio
1 : 2000
V
C
Supply voltage (± 5 %)
± 12 .. 15
V
I
C
Current consumption
16 (@ ± 15 V) + I
S mA
X
Accuracy @
I
PN , TA = 25°C
@ ± 15 V (± 5 %)
± 0.60
%
Accuracy - Dynamic performance data
@ ± 12 .. 15 V (± 5 %)
± 0.80
%
ε
L
Linearity error
< 0.15
%
Typ
Max
I
O
Offset current @
I
P = 0, TA = 25°C
± 0.20
mA
I
OM
Magnetic offset current 1) @
I
P = 0 and specified RM,
after an overload of 3 x
I
PN
± 0.25
mA
I
OT
Temperature variation of
I
O
- 25°C .. + 85°C
± 0.20 ± 0.50
mA
- 40°C .. - 25°C
± 0.30 ± 0.80
mA
t
ra
Reaction time to 10 % of
I
PN
< 500
ns
t
r
Response time 2) 3) to 90 % of
I
PN step
< 1
µs
di/dt di/dt accurately followed 4)
> 200
A/µs
BW
Frequency bandwidth 4) (- 1 dB)
DC .. 100
kHz
T
A
Ambient operating temperature
- 40.. + 85
°C
General data
T
S
Ambient storage temperature
- 45 .. + 100
°C
R
S
Secondary coil resistance
@
T
A = 70°C
76
@
T
A = 85°C
80
m
Mass
55
g
Standards
EN 50155: 1995
Notes: 1) 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.
16053


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