Current Transducer LA 35-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).

Electrical data

I

PN

Primary nominal r.m.s. current

At

I

P

Primary current, measuring range

0 .. ± 70

At

R

M

Measuring resistance

R

M min

R

M max

with ± 15 V

@ ± 35 At

max

60

320

Ω

@ ± 70 At

max

60

85

Ω

I

SN

Secondary nominal r.m.s. current

35

mA

K

N

Conversion ratio

1-2-3-4-5 : 1000

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 mn

2.5

kV

V

b

600

V

basic isolation

1700

V

Accuracy - Dynamic performance data

X

Accuracy @ I

± 0.5

%

ε

L

Linearity

< 0.2

%

Typ

Max

I

O

± 0.10 ± 0.20

mA

I

OM

± 0.05 ± 0.15

mA

I

OT

Thermal drift of I

O

- 25°C .. + 70°C

± 0.15 ± 0.50

mA

t

r

P max

< 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

- 25 .. + 70

°C

T

S

Ambient storage temperature

- 40 .. + 85

°C

R

P

Primary resistance per turn @ T

< 1.25

m

Ω

R

S

Secondary coil resistance @ T

80

Ω

R

IS

Isolation resistance @ 500 V, T

> 1500

M

Ω

m

Mass

22

g

EN 50178

primary connections be followed (see table page 2)

Features

range current transducer using the

Hall effect

according to UL 94-V0.

Advantages

interference

Applications

motor drives

(UPS)

(SMPS)

applications.

980909/1

I

LEM Components

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