Current Transducer HXS 50-NP

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Current Transducer HXS 50-NP

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).

I

PN

= 12.5 - 25 - 50 A

45001

R

L

R

OUT

C

L

V

C

I

C

I

PN

I

P

V

OUT

V

REF

Electrical data

Primary nominal r.m.s. current

Primary current measuring range

Analog output voltage @ I

P

I

P

= 0

Internal Reference 1) - Output voltage

Output load resistance

V

REF

Output impedance

V

REF

Load impedance

Output impedance

Max. output capacitive load

Supply voltage (± 5 %)

Current consumption @ V

C

= 5 V

±50

±150

V

REF

± (0.625· I

P

/ I

PN

) V

V

REF

± 0.0125

2.5 ± 0.025

V typ. 200

200

2

<

10

<

1

V

Ω k

Ω k

µF

5 V

22 mA

A

A

Accuracy - Dynamic performance data

f

X

ε

L

TCV

OUT

TCV

REF

Accuracy 2) @ I

PN

, T

A

= 25°C

Linearity 0 .. I

PN

.. 3 x I

PN

Thermal drift of V

OUT

@ I

P

= 0

Thermal drift of V

REF

TCV

OUT

/ V

REF

TC

ε

G

Thermal drift of V

OUT

/ V

REF

Thermal drift of the gain

@ I

P

= 0

V

OM

Residual voltage @ I

P

= 0, after an overload of 3 x I

PN DC t t ra r

Reaction time @ 10 % of I

PN

Response time @ 90 % of I

PN di/dt di/dt accurately followed

Output noise (DC ..10 kHz)

(DC .. 1 MHz)

Frequency bandwidth (-3 dB) 3)

±1

±0.5

±1

±0.4

% of

% of

% of I

I

I

PN

PN

PN mV/K

±0.01

±0.2

%/K mV/K

±0.05

% of reading/K

<±1

< 3

% of I

PN

µs

< 5

> 50

µs

A/µs

< 15

< 40

DC .. 50 m V p p m V p p kHz

General data

T

A

T

S

Ambient operating temperature

Ambient storage temperature dCp Creepage distance dCl

CTI

Clearance distance

Comparative tracking index (Group I ) m

UL94 classification

Mass

Standards

- 40 .. + 85

- 40 .. + 85

> 5.5

> 5.5

°C

°C m m m m

V > 600

V0

10 g

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 R

L

= 10 k

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

LEM Components

050906/5

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Current Transducer HXS 50-NP

V b

V b

V d

V e

V w

Isolation characteristics

Nominal Voltage with IEC 61010-1 standards and following conditions

- Single insulation

- Over voltage category III

- Pollution degree 2

- Heterogeneous field

Nominal Voltage with EN 50178 standards and following conditions

150

300

- Reinforced insulation

- Over voltage category III

- Pollution degree 2

- Heterogeneous field

R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn 2.5

R.m.s. voltage for partial discharge extinction @ 10pC > 1

Impulse withstand voltage 1.2/50µs 6

V r.m.s.

V r.m.s.

kV kV

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.

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

LEM Components

050906/5

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Dimensions HXS 50-NP (in mm. 1 mm = 0.0394 inch)

16.5

18.5

12

0.6

6.1

Ref

Out

GND

Vc

8

6

4

2

7

5

3

1

4-0.5*0.25

7.7

HXS 50-NP

14

5V

47nF

0V

4.7nF

Output

47nF

8-1.3d

Operation

+Vc

Vout

Vref.(IN/OUT)

0V

Ip

Number of primary turns

1

Primary current nominal maximum

I

PN

[A] I

P

[A]

50 150

2

4

25

12.5

75

37.5

Primary resistance

R

P

[m ohm]

Primary insertion inductance

L

P

[uF]

0.05

0.025

0.2

1

0.1

0.4

Recommended

PCB connections

IN 1 3 5 7

IN

2 4

1 3 5

6 8

7

OUT

IN

2 4

1 3 5

6 8

7

OUT

2 4 6 8 OUT

Mechanical characteristics

General tolerance ± 0.2 mm

Fastening & connection of primary jumper 8 pins Ø 1.3 mm

Recommended PCB hole

Fastening & connection of secondary

Ø 1.5 mm

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.

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

LEM Components

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

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