Current Transducer LA 305-S

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

300

A

I

P

Primary current, measuring range

0 .. ± 500

A

R

M

Measuring resistance @

T

T

R

R

with ± 12 V

@ ± 300 A

max

0

52

0

50

Ω

@ ± 500 A

max

0

17

0

15

Ω

with ± 15 V

@ ± 300 A

max

0

75

5

73

Ω

@ ± 500 A

max

0

31

5

29

Ω

I

SN

Secondary nominal r.m.s. current

120

mA

K

N

Conversion ratio

1 : 2500

V

C

Supply voltage (± 5 %)

± 12 .. 15

V

I

C

Current consumption

V

b

1750

V

basic isolation

3500

V

Accuracy - Dynamic performance data

X

G

Overall accuracy @ I

± 0.8

%

ε

L

Linearity

< 0.1

%

Typ

Max

I

O

Offset current @ I

± 0.20

mA

I

OM

± 0.40

mA

I

OT

Thermal drift of I

O

- 10°C .. + 85°C

± 0.12 ± 0.30

mA

t

ra

Reaction time @ 10 % of I

P max

< 500

n s

t

r

P max

< 1

µs

di/dt

di/dt accurately followed

> 100

A/µs

f

Frequency bandwidth (- 3 dB)

DC .. 100

kHz

General data

T

A

Ambient operating temperature

- 10 .. + 85

°C

T

S

Ambient storage temperature

- 40 .. + 90

°C

R

S

Secondary coil resistance @

T

35

Ω

T

37

Ω

m

Mass

200

g

EN 50178

through-hole

Features

transducer using the Hall effect

according to UL 94-V0

Advantages

interference

Applications

motor drives

(UPS)

(SMPS)

applications.

I

PN

=

300 A

980707/6

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