LAH 100-P

## **Current Transducer LAH 100-P** 

## **I = 100 A PN** 

For the electronic measurement of currents: DC, AC, pulsed ..., with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). 

US |COMPLIANT 2002/95/EC 16052 

## **Electrical data** 

**I** PN Primary nominal current rms 100 A **I** PM Primary current, measuring range[1)] 0 .. 160 A **R** M Measuring resistance @ **T** A = 70°C **T** A = 85°C **R R** M min **R** M max M min **R** M max with ± 12 V @ **I** PN [±  A DC ] 0 63 0 57 Ω @ **I** PN [A RMS ] 2) 0 11 0 5 Ω with ± 15 V @ **I** PN [±  A DC ] 20 120 45 114 Ω @ **I** PN [A RMS ] 2) 20 51 45 45 Ω @ **I** P   < **I** PN 3) **I** SN Secondary nominal current rms 50 mA **K** N Conversion ratio 1 : 2000 **V** C Supply  voltage (± 5 %) ± 12 .. 15 V **I** C Current consumption 10 (@ ± 15V) + **I** S mA **Accuracy - Dynamic performance data X** Accuracy[ 4)] @ **I** PN, **T** A = 25°C ± 0.25 % **ε** L Linearity error < 0.15 % Typ Max **I** O Offset current @ **T** A = 25°C ± 0.15 mA **I** OM Magnetic offset current @ **I** P = 0 and specified **R** M, after an overload of 5 x **I** PN ± 0.10 ± 0.15 mA **I** OT Temperature variation of **I** O 0°C .. + 70°C ± 0.10 ± 0.40 mA - 25°C .. + 85°C ± 0.10 ± 0.50 mA **t** r a Reaction time @ 10 % of **I** PN < 200 ns **t** r Response time[5)] to 90 % of **I** PN step < 500 ns **di/dt** di/dt accurately followed > 200 A/µs **BW** Frequency bandwidth (- 1 dB) DC .. 200 kHz **General data T** A Ambient operating temperature - 25 .. + 85 °C **T** S Ambient storage temperature - 40 .. + 90 °C **R** S Secondary coil resistance @ **T** A = 70°C 115 Ω @ **T** A = 85°C 121 Ω _**m**_ Mass 24 g Standards EN 50178: 1997 

## **Features** 

- Closed loop (compensated) current transducer using the Hall effect 

- Printed circuit board mounting 

- 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) For 10 s, with **R** M ≤ 25 Ω ( **V** C = ± 15 V) 

   - 2 **)** 50 Hz Sinusoidal 

   - 3) The measuring resistance **R** M min may be lower (see "LAH Technical Information" leaflet) 

   - 4) Without **I** & **I** O OM 

   - 5) With a di/dt of 100 A/µs. 

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

## **Current Transducer LAH 100-P** 

## **Isolation characteristics** 

**V** d Rms voltage for AC isolation test, 50/60 Hz, 1 min 5 kV **V** w Impulse withstand voltage 1.2/50 µs 12 kV **V** e Partial discharge extinction voltage rms @ 10pC >2 kV Min **dCp** Creepage distance[6)] 11.75 m m **dCl** Clearance distance[6)] 11.75 m m **CTI** Comparative Tracking Index  (Group III a) 175 

## **Application examples** 

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

- Over voltage category OV 3 

- Pollution degree PD2 

- Non-uniform field 

|Over voltage category OV 3<br>• Pollution degree PD2<br>• Non-uniform field|Over voltage category OV 3||
|---|---|---|
||**EN 50178**|**IEC 61010-1**|
|dCp, dCI|Rated isolation voltage|Nominal voltage|
|Single isolation|1000 V|1000 V|
|Reinforced isolation|500 V|500 V|



Note :[6)] On PCB with soldering pattern UTEC93-703. 

## **Safety** 

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 built-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. 

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

071129/10 

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## **Dimensions  LAH 100-P** (in mm. 1 mm = 0.0394 inch) 

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Connection<br>Bottom view<br>Left view<br>Front view<br>**----- End of picture text -----**<br>


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Number P r i m a r y  c u r r e n t N o m i n a l T u r n s P r i m a r y Primary insertion<br>of primary nominal    maximum output current r a t i o resistance i n d u c t a n c e<br>t u r n s I PN    [ A ]      I P     [ A ] I SN         [ mA ]      K N R P      [ mΩ ] L P                  [ µH ]<br>1 100 160 50 1 : 2000 0.08 0.007<br>**----- End of picture text -----**<br>


## **Mechanical characteristics** 

- General tolerance 

± 0.2 mm 

- Fastening & connection of primary 6 pins 1.4 x 1 mm Recommended PCB hole 2 mm 

- • Fastening & connection of secondary 3 pins 0.7 x 0.6 mm Recommended PCB hole 1.2 mm 

## **Remarks** 

- **I** S is positive when **I** P flows from terminals "IN" to terminals "OUT". 

- The jumper temperature and PCB should not  exceed 100°C. 

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

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071129/10 

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