Datasheet
Page 3/3
9November2011/version 14 LEM reserves the right to carry out modications on its transducers, in order to improve them, without prior notice www.lem.com
Dimensions LA 25-NP (in mm)
Number of
primary turns
Primary current Nominal
output current
I
SN
[mA]
Turns ratio
K
N
Primary
resistance
R
P
[mΩ]
Primary insertion
inductance
L
P
[µH]
Recommended
connections
nominal
I
PN
[A]
maximum
I
P
[A]
1 25 36 25 1 / 1000 0.3 0.023
5 4 3 2 1 IN
OUT 6 7 8 9 10
2 12 18 24 2 / 1000 1.1 0.09
5 4 3 2 1 IN
OUT 6 7 8 9 10
3 8 12 24 3 / 1000 2.5 0.21
5 4 3 2 1 IN
OUT 6 7 8 9 10
4 6 9 24 4 / 1000 4.4 0.37
5 4 3 2 1 IN
OUT 6 7 8 9 10
5 5 7 25 5 / 1000 6.3 0.58
5 4 3 2 1 IN
OUT 6 7 8 9 10
Mechanical characteristics
● General tolerance ± 0.2 mm
● Fastening & connection of primary 10 pins 0.7 x 0.6 mm
● Fastening & connection of secondary 3 pins Ø 1 mm
● Recommended PCB hole 1.2 mm
Connection
Remarks
● I
S
is positive when I
P
ows from terminals 1, 2, 3, 4, 5 to
terminals 10, 9, 8, 7, 6.
● This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.