HXS 20-NP

## **Current Transducer HXS 20-NP** 

**I =  5 - 10 - 20 A PN** 

For the electronic measurement of currents : DC, AC, pulsed, mixed, with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). Neon c ~~e~~ zha ZOO2/S5/E 

45001 

**Electrical data** ~~P~~ O **I** PN Primary nominal r.m.s. current ±20 A **I** P Primary current measuring range ±60 A **V** OUT Analog output voltage @ **I** P **V** REF ±(0.625· **I** P/ **I** PN) V **I** P = 0 **V** REF ± 0.0125 V **V** REF Internal Reference[1)] - Output voltage 2.5 ± 0.025 V **V** REF Output impedance typ. 200 Ω **V** REF Load impedance ≥ 200 kΩ **R** L Output load resistance ≥ 2 kΩ **R** OUT Output impedance < 10 Ω **C** L Max. output capacitive load < 1 µF **V** C Supply  voltage (± 5 %) 5 V **I** C Current consumption @ **V** C = 5 V 22 mA 

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

**X** Accuracy[2)] @ **I** PN , **T** A = 25°C ≤±1 % of **I** PN **ε** L Linearity 0 .. **I** PN ≤±0.5 % of **I** PN .. 3 x **I** PN ≤±1 % of **I** PN **TCV** OUT Thermal drift of **V** OUT @ **I** P = 0 ≤±0.4 mV/K **TCV** REF Thermal drift of **V** REF ≤±0.01 %/K **TCV** OUT / **V** REF Thermal drift of **V** OUT / **V** REF @ **I** P = 0 ≤±0.2 mV/K **TCε** G Thermal drift of the gain ≤±0.05% of reading/K **V** OM Residual voltage @ **I** P = 0, after an overload of 3 x **I** PN DC <±0.7 % of **I** PN **t** ra Reaction time @ 10 % of **I** PN < 3 µs **t** r Response time @ 90 % of **I** PN < 5 µs **di/dt** di/dt accurately followed > 50 A/µs Output noise(DC ..10 kHz) < 15 mVpp (DC ..  1 MHz) < 40 mVpp **f** Frequency bandwidth (-3 dB)[ 3)] DC .. 50 kHz 

## Po **General data** 

|**T**A|Ambient operating temperature|- 40 .. + 85|°C|
|---|---|---|---|
|**T**S|Ambient storage temperature|- 40 .. + 85|°C|
|**dCp**|Creepage distance|> 5.5|m m|
|**dCl**|Clearance distance|> 5.5|m m|
|**CTI**|Comparative tracking index (Group I )|> 600|V|
||UL94 classification|V0||
|**m**|Mass|10|g|
||Standards|EN 50178(97-10-01)||



## **Features** 

- Hall effect measuring principle 

- Multirange current transducer through PCB pattern lay-out 

- Galvanic isolation between primary and secondary circuit 

- Isolation test voltage 2500V 

- Low power consumption 

- Extremely low profile, 10mm 

- Single power supply +5V 

- Fixed offset & gain 

## **Advantages** 

- Small size and space saving 

- Only one design for wide current ratings range 

- High immunity to external interference. 

- Internal & external reference 

## **Applications** 

- AC variable speed drives 

- Static converters for DC motor drives 

- Battery supplied applications 

- Uninterruptible Power Supplies (UPS) 

- Switched Mode Power Supplies (SMPS) 

- Power supplies for welding 

- applications. 

All Data are given with a RL = 10 kΩ 

050906/5 

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

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LEM Components 

www.lem.com 

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## **Current Transducer HXS 20-NP** 

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**----- Start of picture text -----**<br>
Isolation characteristics<br>**----- End of picture text -----**<br>


|**V**b|Nominal Voltage|150|V r.m.s.|
|---|---|---|---|
||with IEC 61010-1 standards and following conditions|||
||- Single insulation|||
||- Over voltage category III|||
||- Pollution degree 2|||
||- Heterogeneous field|||
|**V**b|Nominal Voltage|300|V r.m.s.|
||with EN 50178 standards and following conditions|||
||- Reinforced insulation|||
||- Over voltage category III|||
||- Pollution degree 2|||
||- Heterogeneous field|||
|**V**d|R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn|2.5|kV|
|**V**e|R.m.s. voltage for partial discharge extinction @ 10pC|> 1|kV|
|**V**w|Impulse withstand voltage 1.2/50µs|6|kV|



Notes :[1)] It is possible to overdrive **V** REF with an external reference voltage between 2 - 2.8 V providing its ability to sink or source approximately 2.5 mA. 

- 2) Excluding offset and hysteresis. 

- 3) Small signal only to avoid excessive heatings of the magnetic core. 

050906/5 

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

Page 2/3 

LEM Components 

www.lem.com 

## **Dimensions  HXS 20-NP (in mm. 1 mm = 0.0394 inch)** 

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**----- Start of picture text -----**<br>
18.5<br>a              16.5 yi<br>ans           12     14<br>ian bry<br>0.6 6.1 Re commended connection circuit quired Connection Circuit<br>5V<br>F Ref = 8 ] 7 HXS 20-NP 47nF<br>Out 6 5 0V<br>GND 4 3 4.7nF<br>Vc 2 1 Output<br>47nF<br>8-1.3d Ref.V Ref. IN/OUT<br>c (Colin ues a) a =<br>4-0.5*0.25<br>| 7.7 Operation<br>+Vc<br>Vout<br>Vref.(IN/OUT)<br>Ip 0V<br>| eS<br>Number of Primary current Primary Primary insertion Recommended<br>primary turns nominal  maximum resistance inductance PCB connections<br>I PN [A] I P [A] R P [m ohm] L P [uF]<br>IN 1 3 5 7<br>1 20 60 0.05 0.025<br>2 4 6 8 OUT<br>IN 1 3 5 7<br>2 10 30 0.2 0.1<br>2 4 6 8 OUT<br>IN 1 3 5 7<br>4 5 15 1 0.4<br>2 4 6 8 OUT<br>10<br>3.5 3.5<br>18.5<br>P=2.54 P=2.54<br>**----- End of picture text -----**<br>


## **Mechanical characteristics** 

- General tolerance 

   - ± 0.2 mm 

- Fastening & connection of primary jumper 8 pins Ø 1.3 mm Recommended PCB hole Ø 1.5 mm 

- • Fastening & connection of secondary 4 pins 0.5 x 0.25 Recommended PCB hole Ø 0.7 mm 

## **Safety** 

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

## **Remarks** 

- **V** OUT is positive when **I** P flows from terminals 1, 3, 5, 7 (IN) to terminals 2, 4, 6, 8 (OUT). 

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

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. 

050906/5 

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

Page 3/3 

LEM Components 

www.lem.com