Current Transducer LT 4000-S
IPN = 4000 A
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
IPN
IP
RM
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
4000
0 .. ± 6000
RM min
A
A
Features
RM max
· Closed loop (compensated) current
transducer using the Hall effect
· Insulated plastic case recognized
according to UL 94-V0.
with ± 24 V
@ ± 4000 A max
@ ± 6000 A max
0
0
10
2
W
W
ISN
KN
VC
IC
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
800
1 : 5000
± 24
35(@± 24V)+IS mA
6
mA
Advantages
V
· Excellent accuracy
· Very good linearity
Vd
kV
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
Accuracy - Dynamic performance data
XG
Overall accuracy @ IPN , TA = 25°C
Linearity
± 0.5
< 0.1
%
%
e
L
Typ
Max
± 0.8 mA
± 0.6 ± 0.8 mA
· Current overload capability.
IO
IOT
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
- 25°C .. + 70°C
Applications
tr
Response time 1) @ 90 % of IP max
di/dt di/dt accurately followed
< 1
> 50
DC .. 100
µs
A/µs
kHz
· AC variable speed drives and servo
motor drives
f
Frequency bandwidth (- 1 dB)
· Static converters for DC motor drives
· Battery supplied applications
· Uninterruptible Power Supplies
(UPS)
· Switched Mode Power Supplies
(SMPS)
General data
TA
TS
RS
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @ TA = 70°C
- 25 .. + 70
- 40 .. + 85
15
°C
°C
W
· Power supplies for welding
applications.
Mass
Standards
6
kg
2)
EN 50178
1)
Notes : With a di/dt of 100 A/µs
2)
A list of corresponding tests is available
980728/8
LEM Components
www.lem.com