Solid State Sensors
CSN Series
Closed Loop Current Sensors
CATALOG NUMBER SYSTEM
PLEASE NOTE: This matrix is intended
only to aid you in identifying sensor cata-
log listings. It isnot all-inclusive, and must
not be used to form new listings.
Example: CSNA111
CSN Closed Loop Current Sensor
Current Range (Peak/RMS nom.)
A
B
C
D
E
F
±
±
±
±
±
±
±
±
±
±
±
±
±
70 A/50 A rms nom.
100 A/50 A rms nom.
90 A/50 A rms nom.
22 A/15 A rms nom.
36 A/25 A rms nom.
150 A/100 A rms nom.
600 A/300 A rms nom.
1200 A/500 A rms nom.
600 A/300 A rms nom.
1200 A/500 A rms nom.
90 A/50 A rms nom.
200 A/125 A rms nom.
150 A/50 A rms nom.
FEATURES
CLOSED LOOP SENSORS
ɀ
ɀ
Current sensing up to 1200 amps
Measures AC, DC and impulse
currents
Closed loop current sensors measure
AC, DC and impulse currents over 0-25,
0-50, 0-100, 0-600 and 0-1200 Amp rang-
es. The CSN Series is based on the princi-
ples of the Hall effect and the null balance
or zero magnetic flux method (feedback
system). The magnetic flux in the sensor
core is constantly controlled at zero. The
amount of current required to balance
zero flux is the measure of the primary
current flowing through the conductor,
multiplied by the ratio of the primary to
ɀ
ɀ
ɀ
ɀ
Lowest cost/performance ratio
Rapid response, no overshoot
High overload capacity
High level of electrical isolation
between primary and secondary
circuits
J
K
L
M
P
R
T
ɀ
Small size and weight
secondary windings. This closed loop Supply Voltage
current is the output from the device and
presents an image of the primary current
reduced by the number of secondary
turns at any time. This current can be
expressed as a voltage by passing it
through a resistor.
1
2
3
4
5
6
±
±
±
±
±
±
15 V
13 V
5 V
12 V to 18 V
15 V to 24 V
12 V to 15 V
Coil Characteristics
1 1:1000 turns/90 ȉ @ 70°C
2 1:2000 turns/160 ȉ @ 70
3 1:2000 turns/130 ȉ @ 70
°
°
°C
°
C
C
4 1:1000 turns/50 ȉ @ 70
5 1:1000 turns/110 ȉ @ 70
C
6 1:1000 turns/30 ȉ @ 70
7 1:2000 turns/80 ȉ @ 70
8 1:2000 turns/25 ȉ @ 70
9 1:5000 turns/50 ȉ @ 85
°C
°C
°C
°C
Housing Material
1 Polycarbonate/ABS blend
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