Current Transducer HXS 20-NP/SP2
IPN = 5 - 10 - 20 A
For the electronic measurement of currents : DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
All Data are given with a R L = 10 kΩ
Electrical data
IPN
IP
VOUT
VREF
RL
ROUT
CL
VC
IC
Primary nominal r.m.s. current
Primary current measuring range
Analog output voltage @ IP
IP = 0
Internal Reference 1) - Output voltage
VREF Output impedance
VREF Load impedance
Output load resistance
Output impedance
Max. output capacitive load
Supply voltage (± 5 %)
Current consumption @ VC = 5 V
±20
A
±60
A
VREF ± (0.625·IP/IPN) V
VREF ± 0.0125
V
2.5 ± 0.025
V
typ. 200
Ω
≥ 200
kΩ
≥2
kΩ
< 10
Ω
<1
µF
5
V
22
mA
Accuracy - Dynamic performance data
Accuracy 2) @ IPN , TA = 25°C
εL
Linearity 0 .. IPN
.. 3 x IPN
TCVOUT Thermal drift of VOUT @ IP = 0
TCVREF Thermal drift of VREF
TCVOUT / VREF Thermal drift of VOUT / VREF @ IP = 0
TCεG Thermal drift of the gain
VOM
Residual voltage @ IP = 0, after an overload of 3 x IPN DC
t ra
Reaction time @ 10 % of IPN
tr
Response time @ 90 % of IPN
di/dt di/dt accurately followed
Output noise (DC ..10 kHz)
(DC .. 1 MHz)
f
Frequency bandwidth (-3 dB) 3)
X
m
Ambient operating temperature
Ambient storage temperature
Creepage distance
Clearance distance
Comparative tracking index (Group I )
UL94 classification
Mass
Standards
• Hall effect measuring principle
• Multirange current transducer
through PCB pattern lay-out
• Galvanic isolation between primary
and secondary circuit
• Isolation test voltage 2500V
• Low power consumption
• Extremely low profile, 10mm
• Single power supply +5V
• Fixed offset & gain
Special Feature
≤±1
% of IPN
≤±0.5
% of IPN
≤±1
% of IPN
≤±0.4
mV/K
≤±0.01
%/K
≤±0.2
mV/K
≤±0.05% of reading/K
<±0.7
% of IPN
<3
µs
<5
µs
> 50
A/µs
< 15
mVpp
< 40
mVpp
DC .. 50
kHz
General data
TA
TS
dCp
dCl
CTI
Features
- 40 .. + 105
°C
- 40 .. + 105
°C
> 5.5
mm
> 5.5
mm
> 600
V
V0
10
g
EN 50178 (97-10-01)
• TA = -40 .. +105 °C
Advantages
• Small size and space saving
• Only one design for wide current
ratings range
• High immunity to external
interference.
• Internal & external reference
Applications
• AC variable speed drives
• Static converters for DC motor drives
• Battery supplied applications
• Uninterruptible Power Supplies
(UPS)
• Switched Mode Power Supplies
(SMPS)
• Power supplies for welding
applications.
041222/3
LEM Components
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Current Transducer HXS 20-NP/SP2
Insulation category
Vb
Vb
Vd
Ve
Vw
Nominal Voltage
with IEC 61010-1 standards and following conditions
- Single insulation
- Over voltage category III
- Pollution degree 2
- Heterogeneous field
Nominal Voltage
with EN 50178 standards and following conditions
- Reinforced insulation
- Over voltage category III
- Pollution degree 2
- Heterogeneous field
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn
R.m.s. voltage for partial discharge extinction @ 10pC
Impulse withstand voltage 1.2/50µs
150
V r.m.s.
300
V r.m.s.
2.5
>1
6
kV
kV
kV
Notes : 1) It is possible to overdrive VREF with an external reference voltage
between 2 - 2.8 V providing its ability to sink or source approximately
2.5 mA.
2)
Excluding offset and hysteresis.
3)
Small signal only to avoid excessive heatings of the magnetic core.
Safety :
Caution, risk of danger
Caution, risk of electrical shock
LEM Components
This transducer shall be used in accordance with manufacturer instruction.
Power supply shall be a low voltage source and shall have an efficient
protective system against over current.
Power supply must incorporate a circuit breaker.
This transducer shall be used in an electric/electronic equipment in respect
of standards rules and applicable safety requirements.
Primary bar and output terminals can provide hazardous voltage.
This transducer is a built in device, of which conducting parts must be
inaccessible by installation.
Protective envelope or additional shield must be used.
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HXS 20-NP/SP2
Dimensions (in mm)
18.5
3.5
3.5
10
16.5
12
14
6.1
0.6
Recommended
connection
circuit
Required Connection
Circuit
8
6
4
2
7
5
3
1
HXS 20-NP
/SP2
P=2.54
P=2.54
18.5
5V
Ref
Out
GND
Vc
47nF
0V
4.7nF
Output
47nF
V
Ref. IN/OUT
Ref.
8-1.3d
4-0.5*0.25
7.7
Operation Principle
+Vc
Vout
Vref.(IN/OUT)
0V
Ip
Number of
primary turns
Primary current
Primary
nominal maximum
I PN [A]
IP
[A]
resistance
R P [m ohm]
Primary insertion
inductance
[uF]
LP
Recommended
PCB connections
IN
1
20
60
0.05
IN
2
10
30
0.2
5
15
1
Mechanical characteristics
• General tolerance
• Fastening & connection of primary jumper
Recommended PCB hole
• Fastening & connection of secondary
Recommended PCB hole
3 5
7
2
4
6
8
1
3 5
7
2
4
6
8
1
3 5
7
2
4
8
OUT
0.1
IN
4
1
0.025
OUT
0.4
6
OUT
Remarks
± 0.2 mm
8 pins Ø 1.3 mm
Ø 1.5 mm
4 pins 0.5 x 0.25
Ø 0.7 mm
• VOUT is positive when IP flows from terminals 1, 3, 5, 7 (IN) to
terminals 2, 4, 6, 8 (OUT).
• Temperature of the primary conductors should not exceed
120°C.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.