LEM HXS20-SP2

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
Features
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 error 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
Vno
Output noise (DC ..10 kHz)
(DC .. 1 MHz)
f
Frequency bandwidth (-3 dB) 3)
X
≤±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
< 20
mVpp
< 40
mVpp
DC .. 50
kHz
General data
TA
TS
m
Ambient operating temperature
Ambient storage temperature
Mass
Standards
- 40 .. + 105
°C
- 40 .. + 105
°C
10
g
EN 50178 (97-10-01)
• Hall effect measuring principle
• Multirange current transducer
through PCB pattern lay-out
• Galvanic isolation between primary
and secondary circuit
• Isolation test voltage 3500V
• Low power consumption
• Extremely low profile, < 11mm
• Single power supply +5V
• Fixed offset & gain
• Insulated plastic case recognized
according to UL 94-V0.
Special Feature
• 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.
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.
Application Domain
• Industrial
Page 1/3
061004/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
Current Transducer HXS 20-NP/SP2
Isolation characteristics
Vb
Vb
Vd
dCp
dCl
CTI
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
Creepage distance
Clearance distance
Comparative tracking index (Group I )
150
V r.m.s.
300
V r.m.s.
3.5
> 5.5
> 5.5
> 600
kV
mm
mm
V
Page 2/3
061004/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
Dimensions HXS 20-NP/SP2 (in mm. 1 mm = 0.0394 inch)
18.7
3.5
3.5
1
10.7
16.7
12
0.6
14
6.1
Required
connection
circuitcircuit
Recommended
connection
8 7
5V
HXS 20-NP
/SP2
P=2.54
P=2.54
Ref
Out
GND
Vc
47nF
0V
4.7nF
2 1
Output
47nF
8-1.3d
V Ref.
IN/OUT
4-0.5*0.25
7.7
Operation Principle
Number of
primary turns
Primary current
Primary
nominal maximum
I PN [A]
IP
[A]
resistance
R P [m ohm]
Primary insertion
inductance
[uF]
[µH]
LP
Recommended
PCB connections
IN
1
20
60
0.05
IN
2
10
30
0.2
5
15
1
3 5
7
2
4
6
8
1
3 5
7
2
4
6
8
1
3 5
7
2
4
8
OUT
OUT
Vout
Vref.(IN/OUT)
0V
0.4
6
OUT
Safety
Mechanical characteristics
• General tolerance
• Fastening & connection of primary jumper
Recommended PCB hole
• Fastening & connection of secondary
Recommended PCB hole
+Vc
0.1
IN
4
1
0.025
± 0.2 mm
8 pins Ø 1.3 mm
Ø 1.5 mm
4 pins 0.5 x 0.25
Ø 0.7 mm
This transducer must be used in electric/electronic equipment
with respect to applicable standards and safety requirements
in accordance with the following manufacturer's operating
instructions.
Remarks
• 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.
Caution, risk of electrical shock
When operating the transducer, certain parts of the module can
carry hazardous voltage (eg. primary busbar, power supply).
Ignoring this warning can lead to injury and/or cause serious
damage.
This transducer is a built-in device, whose conducting parts
must be inaccessible after installation.
A protective housing or additional shield could be used.
Main supply must be able to be disconnected.
Page 3/3
061004/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com