LA-150-P Datasheet, PDF (1/4 Pages) LEM – Current Transducer LA 150-P

Current Transducer LA 150-P
For the electronic measurement of currents: DC, AC, pulsed...,
with galvanic separation between the primary circuit and the secondary
circuit.
I_PN = 150 A
Electrical data
I_PN
Primary nominal rms current
I_PM
Primary current, measuring range
R_M
Measuring resistance @ 85 °C
with ±12 V
@ ±150 A _max

@ ±212 A _max
with ±15 V
@ ±150 A _max

@ ±212 A _max
I_SN
Secondary nominal rms current
K_N
Conversion ratio
U_C
Supply voltage (±5 %)
I_C
Current consumption
Accuracy - Dynamic performance data
150
A
0 .. ±212
A
R R _{M min}
M max
0
40
Ω
0
3
Ω
0
78
Ω
0
30
Ω
75
mA
1 : 2000
±12 .. 15
V
10 (@ ±15 V) + I_S mA
X
Accuracy @ I_PN, T_A = 25 °C
ε_L
Linearity error

<0.5
%
<0.1
%
Typ Max
I_OE
Electrical offset current @ I_P = 0, T_A = 25 °C
±0.10 mA
I_OM
Magnetic offset current @ I_P = 0 and specified R_M,
after an overload of 3 × I_PN
±0.25 mA
I_OT
Temperature variation of I_O
-40 °C .. +85 °C ±0.15 ±0.30 mA
t_ra
Reaction time
<300
ns
t_r
Step response time ¹⁾ to 90 % of I_PN
<500
ns
di/dt di/dt accurately followed
>100
A/µs
BW Frequency bandwidth (-1 dB)
DC .. 150
kHz
General data
T_A
Ambient operating temperature
-40 .. +85
°C
T_S
Ambient storage temperature
-40 .. +90
°C
R_S
Resistance of secondary winding @ T_A = 25 °C
64±2
Ω
m
Mass
<25
g
Standards
EN 50178: 1997

UL 508: 2010
Features
●● Closed loop (compensated)
current transducer using the Hall
effect
●● Insulating plastic case recognized
according to UL 94-V0.
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
●● 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.
Application domain
●● Industrial.
Note: ¹⁾ With a di/dt of 100 A/µs.
N° 74.B4.39.000.0
26June2015/version 4
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
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