LA 100-TP

## **Current Transducer LA 100-TP** 

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

For the electronic measurement of currents: DC, AC, pulsed..., with galvanic separation between the primary circuit and the secondary circuit. 

|~~**Electrical data**~~<br>~~a~~|~~**Electrical data**~~<br>~~a~~|~~**Electrical data**~~<br>~~a~~|~~**Electrical data**~~<br>~~a~~|~~**Electrical data**~~<br>~~a~~|~~**Electrical data**~~<br>~~a~~|~~**Electrical data**~~<br>~~a~~|
|---|---|---|---|---|---|---|
|_I_P N<br>_I_P M|Primary nominal RMS current<br>Primary current, measuring range|||100<br>0 ... ±150|0 ... ±150|A<br>A|
|_R_M|Measuring resistance @|Measuring resistance @|_T_A= 70 °C<br>_T_A= 85 °C||||
||||_R_M min _R_M max<br>_R_M min||_R_M max||
||with ±12 V|@ ±100 Amax|0|0<br>50<br>0|42|Ω|
|||@ ±120 Amax|0|0<br>22<br>0|14|Ω|
||with ±15 V|@ ±100 Amax|0|0<br>110<br>20|102|Ω|
|_I_S N|@ ±150 Amax<br>Secondary nominal RMS current||0|0<br>33<br>20<br>50|25|Ω<br>mA|
|_N_P/_N_STurns ratio<br>_U_C<br>Supply voltage (±5 %)||Supply voltage (±5 %)||1 : 2000<br>±12 ... 15<br>Min<br>Typ|±12 ... 15<br>Max|V|
|_I_C|Current consumption|Current consumption<br>@ ±15 V||8+_I_S10+_I_S|12+_I_S|mA|



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

_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 E Electrical 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 to 10 % of the final output value for _I_ P N step < 500 ns _t_ D 90 Delay time to 90 % of the final output value for _I_ P N step 2) < 1 µs _BW_ Frequency bandwidth (−1 dB) DC ... 200 kHz 

|~~**General data**~~<br>~~Lo~~|~~**General data**~~<br>~~Lo~~|~~**General data**~~<br>~~Lo~~|~~**General data**~~<br>~~Lo~~|~~**General data**~~<br>~~Lo~~|
|---|---|---|---|---|
|_T_A|Ambient operating temperature||−40 ... +85|°C|
|_T_A st<br>_R_S|Ambient storage temperature<br>Resistance of secondary winding|@_T_A= 70 °C|−40 ... +90<br>120|°C<br>Ω|
|_m_|Mass|@_T_A= 85 °C|128<br>24|Ω<br>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. 

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

> 2)  For a d _i_ /d _t_ = 100 A/µs. 

N° 97.10.34.000.0 

Page 1/3 LEM International SA Route du Nant-d’Avril, 152 1217 Meyrin www.lem.com 

LEM reserves the right to carry out modifications on its transducers, in order to improve them. 

6July2023/Version 13 

## **Current Transducer LA 100-TP** 

## ~~**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|7.5|kV|
|||Min||
|_d_Cp|Creepage distance|8.3|mm|
|_d_CI|Clearance|8.3|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|1000 V|1000 V|
|Reinforced insulation|600 V|300 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 Route du Nant-d’Avril, 152 1217 Meyrin www.lem.com 

LEM reserves the right to carry out modifications on its transducers, in order to improve them. 

6July2023/Version 13 

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

**==> picture [512 x 323] intentionally omitted <==**

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d Cl d Cp<br>Connection<br>I P<br>I S R M<br>U C<br>U C<br>**----- End of picture text -----**<br>


## **Mechanical characteristics** 

- ●General tolerance 

±0.2 mm busbar 

●Fastening & connection of primary busbar 6.4 × 1.6 mm Recommended PCB hole 3.8 mm ●Fastening & connection of secondary 3 pins 0.6 × 0.7 mm Recommended PCB hole ⌀ 1.2 mm 

Recommended PCB hole 

## **Remarks** 

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

- ●Temperature of the primary conductor should not exceed 100 °C. 

- ●Installation of the transducer must be done unless otherwise specified on the datasheet, according to LEM Transducer Generic Mounting Rules. Please refer to LEM document N°ANE120504 available on our Web site: 

**https://www.lem.com/en/file/3137/download.** 

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

Page 3/3 LEM International SA Route du Nant-d’Avril, 152 1217 Meyrin www.lem.com 

LEM reserves the right to carry out modifications on its transducers, in order to improve them. 

6July2023/Version 13