LA150-P Datasheet

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Current Transducer LA 150-P

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

= 150 A

46090

I

S

I

SN

K

N

V

C

I

C

V d

I

PN DC

I

PN

I

PM

R

M

Electrical data

Primary continuous direct current (nominal)

Primary nominal current rms

Primary current, measuring range

Measuring resistance

@ ±15V, ± 200 A

Secondary current

max

Secondary nominal current rms

Conversion ratio

150

106

0 .. ± 200

53

1 : 2000

A

T

A

= 70°C T

A

= 85 °C

R

M min

0

R

M max

30

R

M min

R

M max

0 15 Ω

75 mA mA

A

A

Supply voltage (± 5 %)

Current consumption

Rms voltage for AC isolation test, 50 Hz,1min

± 15 V

16 + I

S mA

2.5 kV

X

ε

I

OE

L

I

OM

TCI

OE t r di/dt

BW

Accuracy-Dynamic performance data

Accuracy @ I

PN DC

, T

A

= 25°C, ± 15 V (± 5 %)

Linearity error (0 .. ± I

PN DC

)

Electrical offset current @ I

P

Magnetic offset current @ I

P

= 0, T

A

= 25°C

= 0 and specified R

M

, after an overload of 1 x I

PN DC

Temperature coefficient of I

OE

Response time to 90% of I

PN DC di/dt accurately followed step

Frequency bandwidth (- 1 dB) 1)

< ± 1 % of I

PN DC

± 0.25% of I

PN DC

< ± 0.2

mA

< ± 0.15

mA

< ± 0.005 mA/K

< 1

> 100

µs

A/µs

DC .. 150 kHz

T

A

T

S

R

S m

General data

Ambient operating temperature

Ambient storage temperature

Secondary coil resistance

Mass

Standards

- 10 .. + 80 °C

- 15 .. + 85 °C

80

Ω

25 g

EN 50178: 1997

Features

• Closed loop (compensation) current transducer using the Hall effect

• Printed circuit board mounting

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 capacity

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

Note :

1) Derating is needed to avoid excessive core heating at high frequency.

071030/9 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.

Page 1/2 www.lem.com

Dimensions LA 150-P (in mm. 1 mm = 0.0394 inch)

Bottom view Left view

29.5

36

13

Terminal Pin Identification

+Vcc

-Vcc

M

RL

M -Vcc

5.1

22.9

28

Front view

+Vcc

Mechanical characteristics

• General tolerance

• Primary through-hole

± 0.2 mm

13 x 8.5 mm

• Fastening & connection of secondary 3 pins

0.7 x 0.7 mm

Recommended PCB hole 1.0 mm

Output

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.

071030/9

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.

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

Page 2/2 www.lem.com

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