LA-100-P Datasheet, PDF (1/3 Pages) LEM – Current Transducer LA 100-P

Current Transducer LA 100-P
For the electronic measurement of currents: DC, AC, pulsed...,
with galvanic separation between the primary circuit and the secondary
circuit.
I_PN = 100 A
Electrical data
I_PN Primary nominal rms current 100
A
I_PM Primary current, measuring range 0 ... ±150
A
R_M Measuring resistance @
T_A = 70 °C T_A = 85 °C

R R R R _{M min M max}
M min M max

with ±12 V
@ ±100 A _max
0 50 0 42 Ω

@ ±120 A _max
0 22 0 14 Ω

with ±15 V
@ ±100 A _max
0 110 20 102 Ω

@ ±150 A _max
0 33 20 25 Ω
I_SN Secondary nominal rms current 50
mA
K_N Conversion ratio 1 : 2000
U_C Supply voltage (±5 %) ±12 … 15
V
I_C
Current consumption 10 (@ ±15 V) + I_S mA
Accuracy - Dynamic performance data
X
Accuracy @ I_PN, T_A = 25 °C @ ±15 V (±5 %) ±0.45
%
@ ±12 … 15 V (±5 %) ±0.70
%
ε_L
Linearity error < 0.15
%
Typ Max
I_O
Offset current @ I_P = 0, T_A = 25 °C
±0.10 mA
I_OM Magnetic offset current ¹⁾ @ I_P = 0 and specified R_M,
after an overload of 3 × I_PN
±0.15 mA
I_OT Temperature variation of I_O −25 °C … +85 °C
±0.05 ±0.30 mA

−40 °C … −25 °C ±0.10 ±0.50 mA
t_ra
Reaction time
t_r
Step response time ²⁾ to 90 % of I_PN
di/dt di/dt accurately followed
< 500
< 1
> 200
ns
µs
A/µs
BW Frequency bandwidth (−1 dB) DC … 200
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 = 70 °C
120
Ω
@ T_A = 85 °C
128
Ω
m
Mass 18
g
Standards EN 50178: 1997
UL 508: 2010
Notes: ¹⁾ Result of the coercive field of the magnetic circuit
2) _{With a di/dt of 100 A/µs.}
Features
●● Closed loop (compensated)
current transducer using the Hall
effect
●● Insulated 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.
N° 97.09.34.000.0
27January2016/version 12
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
Page 1/3
www.lem.com