LF205-P LEM [LEM], LF205-P Datasheet
![no-image](/images/no-image-200.jpg)
LF205-P
Manufacturer Part Number
LF205-P
Description
Current Transducer LF 205-P
Manufacturer
LEM [LEM]
Datasheet
1.LF205-P.pdf
(2 pages)
Current Transducer LF 205-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
I
R
I
K
V
I
V
X
I
I
I
t
t
di/dt
f
T
T
R
m
Notes :
LEM Components
PN
P
SN
C
OT
O
OM
ra
r
A
S
C
d
M
N
G
L
S
Electrical data
Accuracy - Dynamic performance data
General data
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance @
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption @ ± 15V
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
Overall accuracy @ I
Linearity
Offset current @ I
Residual current
Thermal drift of I
Reaction time @ 10 % of I
Response time
di/dt accurately followed
Frequency bandwidth (- 3 dB)
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @ T
Mass
Standards
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.
with ± 12 V
with ± 15 V
3)
2)
O
1)
P
@ 90 % of I
@ I
= 0, T
PN
P
, T
= 0, after an overload of 3 x I
A
A
= 25°C
P max
@ ± 200 A
@ ± 420 A
@ ± 200 A
@ ± 420 A
= 25°C
@ T
P max
A
A
= 70°C
= 85°C
- 40°C .. + 85°C
max
max
max
max
R
T
M min
A
0
0
0
0
= 70°C
PN
R
100
M max
71
14
28
± 0.12 ± 0.4
200
0 .. ± 420
100
1 : 2000
± 12 .. 15
3.5
± 0.5
< 0.1
< 500
< 1
> 100
DC .. 100
- 40 .. + 85
- 40 .. + 90
EN 50178
17 + I
Typ
58
33
35
R
23
23
M min
T
S
0
0
A
Max
± 0.2
± 0.1
= 85°C
R
M max
69
12
98
26
A/µs
kHz
m A
m A
mA
mA
mA
k V
ns
µs
°C
°C
%
%
A
A
V
g
I
Features
Advantages
Applications
PN
Closed loop (compensated) current
transducer using the Hall effect
Insulated plastic case recognized
according to UL 94-V0.
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.
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.
=
200 A
w w w.lem.com
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LF205-P Summary of contents
Page 1
Current Transducer LF 205-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 Primary nominal r.m.s. current PN I Primary ...
Page 2
Dimensions LF 205-P (in mm 0.0394 inch) Bottom view Front view Top view Mechanical characteristics General tolerance Fastening & secondary connection Recommanded PCB hole Primary through-hole Supplementary fastening Recommended PCB hole Recommended screws LEM code LEM reserves ...