LEM LA15-PB Current transducer la 03~20-pb Datasheet

Current Transducer LA 03 .. 20-PB
IPN =
3 .. 20 A
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).
Preliminary
Electrical data
Primary nominal
r.m.s. current
IPN (A)
Primary current
measuring range
IP (A)
3
5
10
15
20
VC
IC
Vd
R IS
VOUT
RL
± 4.5
± 7.5
± 15
± 22.5
± 30
Primary Conductor
Diameter
(mm)
0.5
0.5
0.65
0.8
1.0
Type
• Closed loop (compensation) current
transducer using the Hall effect
LA 03-PB
LA 05-PB
LA 10-PB
LA 15-PB
LA 20-PB
Supply voltage (± 5 %)
± 15
V
Current consumption
app. 20mA+ IPN/1200 mA
R.m.s. voltage for AC isolation test, 50/60Hz,1mn 2.5
kV
Isolation resistance @ 500 VDC
> 500
MΩ
Output voltage @ ± IPN, RL = 10 kΩ, TA = 25°C
±4
V
Load resistance
> 10
kΩ
Accuracy-Dynamic performance data
X
ε
L
VOE
VOH
VOT
TCε G
tr
f
Accuracy @ IPN, TA = 25°C (without offset)
Linearity (0 .. ± IPN)
Electrical offset voltage, TA = 25°C
Hysteresis offset voltage @ IP = 0;
after an excursion of 1 x IPN
Thermal drift of VOE
max.
Thermal drift(% of reading)
Response time @ 90% of IP
Frequency bandwidth (- 1dB)1)
Features
< ± 1.5 % of IPN
< ± 1 % of IPN
< ± 30
mV
< ± 15
mV
± 1
mV/K
< 0.04
%/K
<3
µs
DC .. 150 kHz
• 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
General data
TA
TS
m
Ambient operating temperature
Ambient storage temperature
Mass
(SMPS)
- 10 .. + 80 °C
- 15 .. + 85 °C
< 12
g
• Switched Mode Power Supplies
(SMPS)
• Power supplies for welding
applications
Notes :
1)
EN 50178 approval pending
Derating is needed to avoid excessive core heating at high frequency.
010118/2
LEM Components
www.lem.com
LA 03 ... 20-PB
Front View
Right View
19 +/-1
2
2 1
Primary Conductor
See the attached table
6 +/-1
5
11 +/-1
6
Bottom View
4-0.5*0.25
Signal Pins
3-p=2.54
2.5 +/-1
4 3
6 +/-1
4.5 +/-1
0.5
20 +/-1
15 +/-1
Terminal Pin Identification
Primary Conductor
Part No.
Diameter
PB
LA 03-P
0.5 d
LA 05-P
PB
0.5 d
PB
LA 10-P
0.65 d
LA 15-P
PB
0.8 d
LA 20-P
PB
1.0 d
Signal Pins
1
-Vcc
2
0V
3
+Vcc
4
Output
Direction of Current Flow
5 (+)
6 (-)
UNIT : mm
SCALE : 2/1
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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