Current Transducer LF 505-S/SP10
IPN
=
500 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
with ± 15 V
ISN
KN
VC
IC
Vd
@ ± 500 A m a x
@ ± 800 A m a x
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
500
0 .. ± 800
RM min
RM
0
0
A
A
• Closed loop (compensated) current
max
55
14
125
1 : 4000
± 15
21 + IS
3
Ω
Ω
Overall accuracy @ IPN, TA = 25°C
Overall accuracy @ IP = 165 A, TA = 25°C
Linearity
ε
L
± 0.6
± 1.35
< 0.1
Typ
IO
I OM
V
mA
kV
%
%
%
Max
± 0.5
mA
± 0.2
± 0.8
mA
mA
IOT
Offset current @ IP = 0, TA = 25°C
Residual current @ IP = 0, after an overload
of 3 x IN
Thermal drift of IO
- 40°C .. + 85°C
± 0.3
tr
t ra
di/dt
f
Response time 1) @ 90 % of IPN
Reaction time @ 10 % de IPN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
<1
< 500
> 100
DC .. 100
µs
ns
A/µs
kHz
General data
TA
TS
RS
m
Notes :
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @ TA = 85°C
Mass
Standards 2)
1)
2)
With a di/dt of 100 A/µs
A list of corresponding tests is available.
transducer using the Hall effect
• Insulated plastic case recognized
according to UL 94-V0.
mA
Accuracy - Dynamic performance data
XG
XG
Features
Special features
•
•
•
•
K N = 1 : 4000
VC = ± 15 V (± 5 %)
TA = - 40°C .. + 85°C
Connection to secondary on
3 x 0.27 mm 2
Radox 155/Elastomers, with AMP
104257-3 connector.
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
- 40 .. + 85
°C
- 45 .. + 90
°C
53
Ω
280
g
EN 50155(95.11.01)
• 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.
•
•
•
•
030626/4
LEM Components
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