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. 

## . C€ fs dus RZHS 

## ~~**Electrical data** PO~~ 

|_I_P N<br>_I_P M|Primary nominal RMS current<br>Primary current, measuring range||100<br>0 ... ±150|100<br>0 ... ±150|100<br>0 ... ±150|A<br>A|
|---|---|---|---|---|---|---|
|_R_M|Measuring resistance @|_T_A= 70 °C|||_T_A= 85 °C||
|||_R_M min _R_M max|||_R_M min _R_M max||
||with ±12 V<br>@ ±100 Amax|0|50||0<br>42|Ω|
||@ ±120 Amax|0|22||0<br>14|Ω|
||with ±15 V<br>@ ±100 Amax|0|110||20<br>102|Ω|
|_I_S N|@ ±150 Amax<br>Secondary nominal RMS current|0|33<br>50|50|20<br>25|Ω<br>mA|
|_N_P/_N_STurns ratio<br>_U_C<br>_I_C|Turns ratio<br>Supply voltage (±5 %)<br>Current consumption (±2)||1 : 2000<br>±12 … 15<br>10(@ ±15 V) +_I_SmA|||V<br>mA|



## ~~**Accuracy - Dynamic performance data** Po~~ 

_ε_ Error @ _I_ P N, _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_ O M Magnetic offset current[1)] @ _I_ P = 0 and specified _R_ M, after an overload of 3 × _I_ P N ±0.15 mA _I_ O _T_ Temperature variation of _I_ O −25 °C … +85 °C ±0.05 ±0.30 mA −40 °C … −25 °C ±0.10 ±0.50 mA _t_ D 10 Delay time @ 10 % of _I_ P N < 500 ns _t_ D 90 Delay time to 90 % of _I_ P N 2) < 1 µs _BW_ Frequency bandwidth (−1 dB) DC … 200 kHz 

~~**General data** Po~~ 

|_T_A<br>_T_S<br>_R_S|Ambient operating temperature<br>Ambient storage temperature<br>Resistance of secondary winding|@_T_A= 70 °C|−40 … +85<br>−40 … +90<br>120|°C<br>°C<br>Ω|
|---|---|---|---|---|
|_m_|Mass|@_T_A= 85 °C|128<br>18|Ω<br>g|
||Standards||EN 50178: 1997||
||||UL 508: 2010||



## _I_ **= 100 A** P N 

## **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. 

Notes:[1)] Result of the coercive field of the magnetic circuit 

> 2)  For a d _i_ /d _t_ = 100 A/µs. 

N° 97.09.34.000.0 

Page 1/3 LEM International SA Chemin des Aulx 8 1228 PLAN-LES-OUATES Switzerland www.lem.com 

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice 

15November2018/version 13 

## **Current Transducer LA 100-P** 

## ~~**Insulation coordination**~~ 

|_U_d|RMS voltage for AC insulation test, 50 Hz/1 min|2.5|kV|
|---|---|---|---|
|_U_Ni|Impulse withstand voltage 1.2/50 µs|4.5|kV|
|||Min||
|_d_Cp|Creepage distance|3.8|mm|
|_d_CI|Clearance|3.8|mm|
|_CTI_|Comparative tracking index (group I)|600||



## **Applications examples** 

**According to EN 50178 and IEC 61010-1 standards** and following conditions: 

- ●Over voltage category OV 3 

- ●Pollution degree PD2 

- ●Non-uniform field 

||**EN 50178**|**IEC 61010-1**|
|---|---|---|
|_d_Cp,_d_CI,_U_Ni|Rated insulation voltage|Nominal voltage|
|Basic insulation|300 V|300 V|
|Reinforced insulation|150 V|150 V|



## **Safety** 

This transducer must be used in limited-energy secondary circuits according to IEC 61010-1. 

This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturer’s operating instructions. 

## Caution, risk of electrical shock 

When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). 

Ignoring this warning can lead to injury and/or cause serious damage. 

This transducer is a build-in device, whose conducting parts must be inaccessible after installation. 

A protective housing or additional shield could be used. 

Main supply must be able to be disconnected. 

Page 2/3 LEM International SA Chemin des Aulx 8 1228 PLAN-LES-OUATES Switzerland www.lem.com 

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice 

15November2018/version 13 

## **Dimensions LA 100-P** (in mm) 

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## **Mechan** ~~**ic**~~ **al characteristic** ~~**s**~~ 

- ●General tolerance 

   - ±0.2 mm ~~12.7 × 7 mm~~ 

- ●Primary through-hole 

- ●Fastening & Connection of secondary 3 pins 0.6 × 0.7 mm 

- ●Recommended PCB hole ⌀ 1.2 mm 

## **Remarks** 

- _I_ S is positive when _I_ P flows in the direction of the arrow. 

- ●Temperature of the primary c ~~o~~ nduc ~~tor should not ex~~ ceed 100 °C. 

- ●Dynamic performances ( d _i_ /d _t_ a ~~n~~ d response time) are best with a single bar completely filling t ~~h~~ e primary hole. 

- Installation of the transducer must be done unless ~~o~~ th ~~e~~ rw ~~ise~~ sp ~~ec~~ i ~~fe~~ d on t ~~h~~ e d ~~a~~ tas ~~heet, accord~~ i ~~ng t~~ o LE ~~M~~ Transducer Generic Mounting R ~~u~~ l ~~e~~ s. Please refer to LEM doc ~~um~~ ent N°ANE ~~1~~ 20504 ~~available on our Web site:~~ **https://www.lem.com/en/file/3137/** ~~**d**~~ **o** ~~**w**~~ **n** ~~**lo**~~ **a** ~~**d/**~~ **.** 

- ●In order to achieve t ~~h~~ e best magnetic coupl ~~i~~ ng, the primary windings have to be wound over the top edge of the device. 

- ●This is a standard model. For different versions (supply voltages, turns ratios, unidirectional measurements...), please contact us. 

Page 3/3 LEM International SA Chemin des Aulx 8 1228 PLAN-LES-OUATES Switzerland www.lem.com 

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice 

15November2018/version 13