LAH-25-NP Datasheet, PDF (3/3 Pages) LEM – Current Transducer LAH 25-NP

Dimensions LAH 25-NP (in mm)
Connection
I_P
I_P
I_s
R_M
I_s
R_M
0V
0V
U_C
U_{C UC}
U_C
d_CI
d_CI
d_Cp
d_Cp
Number of
primary turns
Primary current Primary currentNominal output
nominal
maximum
current
I_{P N} [ A ]
I_P [ A ]
I_{S N} [ mA ]
Turns
ratio
K_N
1
25
55
25
1 : 1000
Primary
resistance
R_P [ mΩ ]
0.18
Primary insertion
inductance
L_P [ µH ]
0.012
2
12
27
24
2 : 1000
0.81
0.054
3
8
18
24
3 : 1000
1.62
0.110
Recommended
PCB connections
3 2 1 IN
OUT 4 5 6
3 2 1 IN
OUT 4 5 6
3 2 1 IN
OUT 4 5 6
Mechanical characteristics
Remarks
●● General tolerance
●● Fastening & connection of primary
Recommended PCB hole
●● Fastening & connection of secondary
Recommended PCB hole
±0.2 mm
●● I_S is positive when I_P flows from terminals 1, 2, 3 (IN) to
6 pins 1 mm × 0.8 mm terminals 6, 5, 4 (OUT).
1.5 mm
●● The jumper temperature and PCB should not exceed
3 pins 0.7 mm × 0.6 mm 100 °C.
1.2 mm
●● This is a standard model. For different versions (supply
voltages, turns ratio, unidirectional measurements...),
please contact us.
24February2017/Version 9
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
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