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
r
a
P
r
e
b
m
u
N
t
n
e
r
r
u
C
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g
n
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R
e
g
a
t
l
o
V
t
u
p
t
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O
e
c
n
a
r
e
l
o
T
0
1
0
-
M
S
A
s
p
m
A
0
1
-
1
%
0
1
0
2
0
-
M
S
A
s
p
m
A
0
2
-
1
%
0
1
0
3
0
-
M
S
A
s
p
m
A
0
3
-
1
%
0
1
0
5
0
-
M
S
A
s
p
m
A
0
5
-
5
%
0
1
5
7
0
-
M
S
A
s
p
m
A
5
7
-
5
%
0
1
0
0
1
-
M
S
A
s
p
m
A
0
0
1
-
5
%
0
1
ASM-020
ASM-010
40
35
30
25
20
15
10
5
0
0 2 4 6 8 10 12
Current (Amps)
Output V
oltage (mV)
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)
Output V
oltage (mV)
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 +120C
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
17.0
(0.669)
(0.024)
1 3
TALEMA
ASM-010
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
5 20 40 60 80 100
Current (Amps)
ASM-050, ASM-075 & ASM-100
135
120
105
90
75
60
45
30
15
0
Output V
oltage (mV)
Output
Voltage
(mV)
50 ohms
E
80
70
60
50
40
30
20
10
0
Output V
oltage (mV)
0 5 10 15 20 25 30 35 40
Current (Amps)
Output
Voltage
(mV)
220 ohms
1 2
E
(02-02) ASM Series
Talema Electronic 101 West 10th Street Rolla, MO 65401 (573) 364-2422 Fax: (573) 364-5390
www.talema.com Email: sales@talema.com
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