
Current Transducer LT 1005-S
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 @
1000
0 .. ± 2000
A
A
T
A
 = 70°C
R
M min
R
M max
R
M min
R
M max
0
22.5
0
11
0
65
0
10
T
A
 = 85°C
with ± 15 V
@ ± 1000 A
 max
@ ± 1200 A
 max
@ ± 1000 A
 max
@ ± 2000 A
 max
0
0
0
0
18.5
8
62
7
with ± 24 V
I
SN
K
 N
V
C
I
C
V
d
V
b
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
R.m.s. rated voltage 
1)
, safe separation
  basic isolation
200
1 : 5000
± 15 .. 24
30
 (@ ± 24 V) + 
I
S
mA
6
1750
3500
mA
V
kV
V
V
Accuracy - Dynamic performance data
X
 G
e
L
Overall accuracy @ 
I
PN
 , 
T
A
 = 25°C
Linearity
± 0.4
< 0.1
%
%
Typ
Max
± 0.4
± 0.5
I
O
I
OT
t
di/dt
f
Offset current @ 
I
P
 = 0, 
T
A
 = 25°C
Thermal drift of 
I
O
Response time
 2)
 @ 90 % of
 I
P max
di/dt
accurately followed
Frequency bandwidth (- 1 dB)
mA
mA
- 10°C .. + 85°C
± 0.3
< 1
> 50
DC .. 150
μs
A/μs
kHz
General data
T
A
T
S
R
 S
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
- 10 .. + 85
- 25 .. + 100
43
46
320
EN 50178
°C
°C
T
A
 = 70°C
T
A
 = 85°C
m
Mass
Standards
 3)
g
Notes :
1)
Pollution class 2. With a non insulated primary bar which fills the
through-hole
2)
With a di/dt of 100 A/μs
3)
A list of corresponding tests is available
Features
 Closed loop (compensated) current
transducer using the Hall effect
 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
=
1000 
A
980716/4
LE M  C omponents
www.lem.com