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2
ASM Series
current sensors operate as the sealed secondary of a current transformer while
the conductor carrying the current to be measured functions as a one turn primary. Measurement
accuracy can be improved by increasing the number of primary turns. Applications include
detection of branch circuit overload and load drop or shutdown.
ASM Series
Current Sensor for 50/60 Hz
t
a
b
m
0
M
0
M
0
M
0
M
0
M
1
M
P
r
0
0
0
0
5
0
e
1
2
3
5
7
0
u
S
S
S
S
S
S
N
A
A
A
A
A
A
t
n
e
m
m
m
m
m
m
A
e
g
A
A
A
A
A
0
r
u
a
R
1
-
2
-
3
-
5
-
7
-
0
1
-
C
n
e
g
a
o
V
n
a
r
%
0
1
±
%
0
1
±
%
0
1
±
%
0
1
±
%
0
1
±
%
0
1
±
t
u
e
o
T
p
t
u
O
e
c
s
s
s
s
s
p
p
p
p
p
p
0
0
0
0
5
1
1
1
5
5
5
s
(02-02) ASM Series
Germany: Int.+4989-841 00-0
Ireland: Int.+35 375-48 666
Czech Rep: Int.+420 19-744 9303
India: Int.+91 427-341 950
http://www.talema-nuvotem.com
ASM-020
ASM-010
40
35
30
25
20
15
10
5
0
1 2 4 6 8 10 12
Current (Amps)
O
Typical Response
80
70
60
50
40
30
20
10
0
1 2 4 6 8 10 12 14 16 18 20 22 24
Current (Amps)
O
ASM-030
Features
Fully encapsulated for optimal PC board mtg.
Mains frequency of 50/60 Hz
Primary current ratings from 1 to 100 Amps
Primary to secondary isolated to 2500 VAC
Operating temperature range: -40
°
C to +120
°
C
Competitive pricing due to high volume
production
Manufactured in ISO-9001 approved
facility
0.75 x 1.10 mm
(0.030 x 0.043)
35.0
(1.378)
3.5
(0.138)
8.0
(0.315)
32.0
(1.260)
7 8
3 4
1 2
7.50
(0.295)
20.5
(0.807)
17.5
(0.689)
27.5
(1.085)
ASM-010
ASM-020
ASM-030
ASM-010 & ASM-020
4 .0 (0.157)
20.4
(0.803)
12.7
(0.500)
0.60
(0.024)
17.0
(0.669)
1 3
TALEMA
5.0
(0.197)
17.20
(0.677)
(0.375)
9.53
1 3
25.15
(0.99)
11.18
(0.440)
3
1 2
7.62
(0.301)
1.78
(0.070)
5.0 (0.197)
15.24
(0.600)
0.80
(0.031)
1 3 2
25.4
(1.00)
TALEMA
ASM-030
9.27
(0.365)
Note: Pin #3 is Blank
ASM-050, ASM-075 & ASM-100
20.0
(0.787)
25.0
(0.984)
5.0
(0.197)
3.5
(0.138)
0.60x0.88 mm
(0.024x0.035)
1 4
8 5
12.5
(0.492)
15.5
(0.610)
23.0
(0.906)
E
1
2
3
Output
Voltage
(mV)
220 ohms
0
Current (Amps)
ASM-050, ASM-075 & ASM-100
135
120
105
90
75
60
45
30
15
O
Output
Voltage
(mV)
50 ohms
E
80
70
60
50
40
30
20
10
0
1 5 10 15 20 25 30 35 40
Current (Amps)
O
Output
Voltage
(mV)
220 ohms
1 2
E