FHS-40-P-SP600 Datasheet, PDF (12/18 Pages) LEM – Current transducer FHS 40-P/SP600

FHS 40-P/SP600
0 - 100A
Application information
The sensitivity depends on the track width and distance, as shown in figure 11.
The maximum current that can be safely applied continuously is determined by the temperature rise of the track.
The use of a track with varying width gives the best combination of sensitivity and track temperature rise.
The following paragraphs show optimized track shapes for bottom and top side tracks.
they are only examples and there could be many others depending on the application requirements.
Track bottom side
High isolation configuration
Track top side
Low isolation configuration
Track on
bottom side
1^B
PCB
Ip
B
1
Ip
PCB
B
B
PCB
Primary Conductor
(Track)
PCB
Primary Conductor (Track)
KIT 5 KIT 9
Creeapage, clearance
8 mm
Nominal primary current IPN 16 A
(85°C ambient, natural convection,
30°C track temperature rise)
Measuring range IPM
55 A
Sensitivity G
36 mV/A
Track width under IC
3 mm
Track width elsewhere
10 mm
A demo board of this
G2.00.23.104.0
design is available
8 mm
30 A
76 A
26 mV/A
8 mm
16 mm
GE.00.23.108.0
Creeapage, clearance
Nominal primary current IPN
(85°C ambient, natural convection,
30°C track temperature rise)
Measuring range IPM
Sensitivity G
Track width under IC
Track width elsewhere
A demo board of this
design is available
KIT 4
0.4 mm
16 A
29 A
68.7 mV/A
3 mm
10 mm
G2.00.23.103.0
PCB characteristics 1.6 mm / 70 µm Cu
PCB characteristics 70 µm Cu
100727/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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