LAH25-NP Datasheet, PDF (2/2 Pages) LEM – Current Transducer LAH 25-NP

Dimensions LAH 25-NP (in mm. 1 mm = 0.0394 inch)
Bottom view
Secondary terminals
Terminal M : measure
Terminal + : supply voltage + 15 V
Terminal - : supply voltage - 15 V
Left view
Front view
Connection
IN
OUT
Number
of primary
turns
Primary current
n o m i n a l maximum
I_PN [ A ] I_P [ A ]
Nominal
output current
I_SN [ mA ]
Turns
ratio
K_N
1
25
55
25
1 : 1000
2
12
27
24
2 : 1000
3
8
18
24
3 : 1000
Primary
resistance
R _P [ mΩ ]
Primary insertion
inductance
L_P
[ µH ]
0.18
0.012
0.81
0.054
1.62
0.110
Recommended
PCB c o n n e c t i o n s
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
• General tolerance
• Fastening & connection of primary
Recommended PCB hole
• Fastening & connection of secondary
Recommended PCB hole
± 0.2 mm
6 pins 1 x 0.8 mm
1.5 mm
3 pins 0.7 x 0.6 mm
1.2 mm
Remarks
• I_S is positive when I_P flows from terminals 1, 2, 3 (IN) to
terminals 6, 5, 4 (OUT).
• This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.