LA03-PB Datasheet, PDF (1/2 Pages) LEM – Current Transducer LA 03~20-PB

Current Transducer LA 03 .. 20-PB
I_PN =
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).
3 .. 20 A
Preliminary
Electrical data
Primary nominal
r.m.s. current
I_PN (A)
3
5
10
15
20
Primary current
measuring range
I_P (A)
± 4.5
± 7.5
± 15
± 22.5
± 30
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
Supply voltage (± 5 %)
± 15
V
I_C
Current consumption
app. 20mA+ I_PN/1200 mA
V_d
R.m.s. voltage for AC isolation test, 50/60Hz,1mn 2.5
kV
R _IS
Isolation resistance @ 500 VDC
> 500
MΩ
V_OUT
Output voltage @ ± I_PN, R_L = 10 kΩ, T_A = 25°C
±4
V
R_L
Load resistance
> 10
kΩ
Accuracy-Dynamic performance data
X
ε_L
V_OE
V_OH
ε ^VOT
TC _G
t_r
f
Accuracy @ I_PN, T_A = 25°C (without offset)
Linearity (0 .. ± I_PN)
Electrical offset voltage, T_A = 25°C
Hysteresis offset voltage @ I_P = 0;
after an excursion of 1 x I_PN
Thermal drift of V_OE
max.
Thermal drift(% of reading)
Response time @ 90% of I_P
Frequency bandwidth (- 1dB)¹⁾
< ± 1.5 % of I_PN
< ± 1 % of I_PN
< ± 30 mV
< ± 15 mV
±1
mV/K
< 0.04 %/K
<3
µs
DC .. 150 kHz
General data
T_A
Ambient operating temperature
T_S
Ambient storage temperature
m
Mass
- 10 .. + 80 °C
- 15 .. + 85 °C
< 12
g
Notes : EN 50178 approval pending
1) _{Derating is needed to avoid excessive core heating at high frequency.}
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)
• Switched Mode Power Supplies
(SMPS)
• Power supplies for welding
applications
LEM Components
010118/2
www.lem.com