Current Transducer LA 50-S/SP1

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).

Electrical data

I

PN

Primary nominal r.m.s. current

50

A

I

P

Primary current, measuring range

0 .. ± 100

A

R

M

Measuring resistance

R

M min

R

M max

with ± 15 V

@ ± 50 A

max

0

330

Ω

@ ± 100 A

max

0

100

Ω

I

SN

Secondary nominal r.m.s. current

25

mA

K

N

Conversion ratio

1 : 2000

V

C

Supply voltage (± 5 %)

± 15

V

I

C

Current consumption

10 + I

S

mA

V

d

R.m.s. voltage for AC isolation test, 50 Hz, 1 min

3

kV

Accuracy - Dynamic performance data

X

G

Overall accuracy @ I

± 0.5

%

ε

L

Linearity

< 0.1

%

Typ

Max

I

O

Offset current @ I

± 0.1

mA

I

OT

Thermal drift of I

O

- 10°C .. + 70°C

± 0.2 ± 0.4

mA

t

r

PN

< 1

µs

di/dt

di/dt accurately followed

> 50

A/µs

f

Frequency bandwidth (- 1 dB)

DC .. 150

kHz

General data

T

A

Ambient operating temperature

- 10 .. + 70

°C

T

S

Ambient storage temperature

- 25 .. + 85

°C

R

S

Secondary coil resistance @ T

130

Ω

m

Mass

45

g

EN 50178

2)

A list of corresponding tests is available.

Features

transducer using the Hall effect

according to UL 94-V0.

Special features

P

= 0 .. ± 100 A

N

= 1 : 2000

Advantages

interference

Applications

motor drives

(UPS)

(SMPS)

applications.

I

PN

= 50 A

991014/5

LEM Components

www.lem.com