Current Transducer LT 505-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 @
500
0 .. ± 1200
A
A
T
A
= 70°C
R
M min
R
M max
R
M min
R
M max
0
65
0
15
0
145
0
22
T
A
= 85°C
with ± 15 V
@ ± 500 A
max
@ ± 800 A
max
@ ± 500 A
max
@ ± 1200 A
max
0
0
60
12
140
18
with ± 24 V
15
15
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
100
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
± 0.6
< 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
65
69
400
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
=
500
A
980708/6
LE M C omponents
www.lem.com