LA05-PB(2005) View Datasheet(PDF) - LEM Industrial
Part Name
Description
Manufacturer
LA05-PB Datasheet PDF : 3 Pages
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Current Transducer LA 03..20-PB
For the electronic measurement of currents: DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
IPN =
3 .. 20 A
Electrical data
Primary nominal
r.m.s. current 1)
I
PN
(A)
3
5
10
15
20
Primary current,
measuring range
I
P
(A)
± 4.5
± 7.5
± 15
± 22.5
± 30
Primary Current
Limitation 3)
(A)
3
3
5
7.5
10
Primary Conductor
Diameter
(mm)
0.5
0.5
0.65
0.8
1.0
Type
LA 03-PB
LA 05-PB
LA 10-PB
LA 15-PB
LA 20-PB
V
C
IC
R
IS
VOUT
RL
Supply voltage (± 5 %)
± 15
V
Current consumption
Isolation resistance @ 500 VDC
app. 20mA + IPN/1200mA
> 500
MΩ
Output voltage @ ± IPN, RL = 10 kΩ, TA = 25°C ± 4
V
Load resistance
> 10
kΩ
Accuracy-Dynamic performance data
X
εL
V
OE
VOH
VOT
ε TC G
tr
f
Accuracy @ I , T = 25°C (without offset)
PN A
Linearity error (0 .. ± IPN)
Electrical offset voltage, T = 25°C
A
Hysteresis offset voltage @ IP = 0;
after an excursion of 1 x I
PN
Thermal drift of VOE (-10..+80°C)
(-20..-10°C)
<± 1.5
<± 1
<± 30
<± 15
<± 1
<± 2
Thermal drift of the gain (% of reading) (-10..+80°C) <± 0.04
(-20..-10°C) <± 0.08
Response time @ 90% of IP
Frequency bandwidth (- 1dB)2)
<3
DC .. 150
% of I
PN
% of IPN
mV
mV
mV/K
mV/K
%/K
%/K
µs
kHz
General data
TA
Ambient operating temperature
T
Ambient storage temperature
S
m
Mass
- 20 .. + 80
°C
- 30 .. + 85
°C
< 12
g
Features
• Closed loop (compensation) current
transducer using the Hall effect
• Voltage output
• Printed circuit board mounting
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 capacity
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
Notes : 1) Calibration for 4V output is carried out at the primary norminal r.m.s.
current.
2) Derating is needed to avoid excessive core heating at high frequency.
3) Primary current is limited by primary wire size. Permanent primary
current should not exceed the specified value.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM Industrial
051102/6
Page 1/3
www.lem.com
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