Sensor La 55-P

Current Transducer LA 55-P
For the electronic measurement of currents : DC, AC, pulsed..., with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electroniccircuit).

IPN

=

50 A

Electrical data
IPN IP RM Primary nominal r.m.s. current Primary current, measuring range Measuring resistance @ with ± 12 V with ± 15 V ISN KN VC IC Vd @ ± 50 A max @± 70 A max @ ± 50 A max @ ± 70 A max 50 0 .. ± 70 TA = 70°C TA = 85°C RM min RM max RM min RM max 10 10 50 50 100 50 160 90 60 95 60 1) 60 1) 135 155 135 2) 135 2) A A

Features
•Closed loop(compensated) current
transducer using the Hall effect

Ω Ω Ω Ω

•Printed circuit board mounting •Insulated plastic case recognized
according to UL 94-V0.

Secondary nominal r.m.s. current Conversionratio Supply voltage (± 5 %) Current consumption R.m.s. voltage for AC isolation test, 50 Hz, 1 mn

50 mA 1 : 1000 ± 12 .. 15 V 10 (@ ± 15 V) + IS mA 2.5 kV

Advantages
•Excellent accuracy •Verygood linearity •Low temperature drift •Optimized response time •Wide frequency bandwidth •No insertion losses •High immunity to external
interference

Accuracy - Dynamic performance data
XAccuracy @ IPN , TA = 25°C
L

ε

@ ± 15 V (± 5 %) @ ± 12 .. 15 V (± 5 %)

Linearity Offset current @ IP = 0, TA = 25°C Residual current 3) @ IP = 0, after an overload of 3 x I PN Thermal drift of IO0°C .. + 70°C - 25°C .. + 85°C Reaction time @ 10 % of IP max Response time @ 90 % of IP max di/dt accurately followed Frequency bandwidth (- 1 dB)

± 0.65 ± 0.90 < 0.15 Typ Max ± 0.2 ± 0.3 ± 0.5 ±0.6

% % % mA mA mA mA ns µs A/µs kHz

•Current overload capability.

IO IOM IOT tra tr di/dt f

Applications
•AC variable speed drives and servo
motor drives

± 0.1 ± 0.1

< 500 200 DC.. 200

•Static converters for DC motor drives •Battery supplied applications •Uninterruptible Power Supplies
(UPS)

•Switched Mode Power Supplies
(SMPS)

General data
TA TS RS m Ambient...