Technical Information

DV series Voltage Transducer
Insulated High Voltage measurements

DV series Voltage Transducer
DV series Voltage Transducer
Insulated High Voltage measurements from 1200 to 4200 VRMS
Now available for Traction and Industry applications
There are many applications requiring highly
insulated, accurate and fast measurement of electricalparameters such as voltage, current, frequency andpower in a high voltage environment for control anddrive purposes or simply for monitoring purposes.
Electrical drives for railway locomotives that aresupplied with energy from networks up to 3000 V
are one example of an application. In many of theseapplications, the measurement signal needs to betransmitted to electronic circuitry in a low voltage
environment for control and / or display purposes.
Certain applications need to power these sensors froma power supply located in the low voltage environment.
The transmission of power and signals from a highvoltage environment to a low voltage environment
requires specific insulation features depending on theapplication. The DV fulfils the all necessary standards.
In addition, a compact package was requested.
To achieve this goal, LEM has designed a newrange of voltage transducers based on a technology
different than the traditionally used Closed Loop Hall
effect technology. The result is the DV series voltage
transducers that covers nominal voltage measurementsfrom 1200 to 4200 VRMS.



To operate, they only need to be connected to themeasuring voltage, without any additional resistors on
the primary side to insert, and to a standard DC power
supply range of +/- 13.5 to +/- 26.4 V.
The DV models have been specially designed for the
railway environment and to respond to the technology
evolution in converters requiring better performancessuch as:• Low influence in common mode
• Low thermal drift• Fast response time
• Large bandwidth• Low noise
They are also well adapted for industrial applications
for high and medium voltage measurements.

To measure primary voltage VP, the DV model uses
only renowned electronic components. The measuring
voltage, VP, is applied directly to the transducer primaryconnections through a resistor network allowing thesignal conditioning circuitry to feed an analogue todigital converter coupled with a Sigma-Delta modulator(to modulate the measurement signal).
The signal is then transmitted to the secondary side
over an insulating transformer ensuring the insulation
between the high voltage side ( called “primary” ) andthe low voltage side ( called “secondary“ ).

The recovered output signal is completely insulated
against the primary ( high voltage ), and is an exact
representation of the primary voltage.
A DC/DC converter connected to customer power
supply provides different supply voltages for thesecondary side of the transducer, primary side being
supplied through another insulated transformer basedon the same principle than the one used for the datatransmission.

The signal is reshaped on the secondary side of thetransformer, then decoded and filtered through a digital
filter to feed a micro-controller using a Digital/Analogue( D/A ) converter.
The analogue voltage signal at the output of the microcontroller and D/A converter is then transformed
through a voltage‑current converter protected against
short circuits.
There may be other types of outputs such as voltage
output, Pulse‑Width Modulation ( PWM ) output, digital
output or other known measurement signal output.

Insulating digital technology features• Measurement of all types of signals: DC, AC,pulsed and complex• Low volume technology: compact size
• High galvanic insulation between primary (high power)
and secondary circuits (electronic circuit)• Low consumption technology

Fig. 1. DV Technology• Very high accuracy• Low temperature drift

DV Transducer Technology

DV Transducer Technology: Insulating Digital Technology

DV series: Main Characteristics

Dimensions
One of the main characteristics of the DV Voltage
transducer is to provide medium/high voltage
measurements in a very compact size comparedto the existing Hall effect based or Fluxgate based
voltage transducers.
Moreover, the same compact design is used tocover the complete voltage range from 1200 V to4200 VRMS.
The DV design is half of the size and weight of the
LV 200-AW/2/Voltage transducer ( Closed Loop
Hall effect chip technology ).
The large volume needed by theclosed loop Hall effect chip andFluxgate technologies can be
attributed to the magnetic
circuits
necessaryfor
operation.

Fig. 2. 50% higher compared to the DV models



The advantage of the electronic based DV
technology is to eliminate the magnetic circuit andintegrate only electronic components ( amplifiers,
resistors, capacitors, A/D & D/A converters, microcontrollers etc.), which saves about 50% in heightcompared to the LV 200-AW/2/Voltage models.
In addition to the reduction in height, the large
heatsinks, usually installed on the Hall effect andFluxgate based voltage transducers, have been
removed as they are no longer needed.
For applications, this is a of greatinterest as the dedicatedlocations for the voltage
and current transducers
are consistently being
reduced in size.

With zero primary voltage and with a power
supply of +/- 24 V, the consumption is max
23 mA. With more than zero primary voltage, thetransducer consumes 23 mA max + the output
current ( typically 50 mA at nominal value ), when
programmed with current output.
In comparison to the other ways to measure highvoltages, this is a considerable energy savings(for instance, a Fluxgate based voltage transducer
consumes between 35 to 50 mA with no primaryvoltage).

Details of the overall accuracy:➔ Initial offset @ +25°C: 50 µA max with a max
possible drift of +/- 100 µA over the operating
temperature range➔ Sensitivity error @ +25°C: +/- 0.2 % as max
possible value with a max possible drift over theoperating temperature range of +/- 0.8 %The micro-controller, used among other things forthe Digital to Analogue conversion, is also usefulfor offset and gain adjustment during production,
enabling these parameters.
Moreover, as opposed to the Closed Loop Hall
effect chip technology, there are no large primaryand secondary windings used causing more
important sensitivity error.
➔ Linearity: only +/- 0.1 %The DV models are 100 % compatible with the
LV 200-AW/2/Voltage and CV 4‑Voltage models
with regards to the footprint mounting. This ishighly desirable when retrofits are required onolder installations.
Fig. 3. DV transducers can be mounted at the exact
place of the previous Voltage transducersDV series : Main Characteristics

Electrical dataDV transducer typical response times ( Responsetime defined at 90 % of VPN ) against a voltage
step at VPN ( ramp up defined at 6 kV/µs ) will havea delay of 48 µs ( Max 60 µs ).

Other closed Loop Hall effect chip based voltage
transducers have a response delay of several
hundred of µs.

Input voltage = 4200 V-3
Outputcurrent Is

Response Time = 50 µs
Gain (dB)

DV series : Main Characteristics & Options

Dynamic performances

Timebase: 20 µs / div
Is: 10 mA / div
Frequency (Hz)Fig. 4. Response time to a voltage step of 4200 V

12 kHzFig. 5. Frequency response / DV 4200 model

As a result of the fast response time, a large bandwidth has been verified at 12 kHz @ 3 db (Fig. 5).

Options
Electrical Output
The DV series models deliver a standard
analogue current output of 50 mA for nominal
voltage defined value ( 75 mA full scale = for the
possible max range ).
The current provided at the output is the exact
representation of the measured voltage.
Voltage output is also possible on request suchas 10 V for nominal voltage defined value.
The transducer can be easily adapted for
different ranges by modifying the gain
programmed by the micro-controller. This
does not require changes in the design ofthe transformer cores or in the design of theassembly of the circuit boards and transformer
core parts in the housing.



Flexibility with modular
connections
The DV product modular approach allows easy
adaptation with various connections available forthe primary side, e.g. terminals or isolated cable,
and any kind of connection for the secondaryside like connectors, shielded cables, terminals( threaded studs, M4, M5, UNC etc. ) according
to customer specifications.

Secondary Connections Options

Various options for secondary connections

Threaded Studs, M4, M5, UNC...

...or Faston

LEMO Connectors

Burndy Connectors

AMP Connectors

Sub-D Connectors

Cables, Shielded Cables...

But also Wago, Phoenix, Souriau ... connectors
Standards

The DV models have been designed and tested according
to latest recognized worldwide standards for traction
applications:3. The main new requirements have been the levels
and frequencies of the radiated electromagnetic field
immunity tests according to EN 61000‑4‑3 :• 20 V/m from 80 MHz to 1 GHz( instead of 10V/m previously ),• Higher insulation and partial discharge levels in orderto guarantee safety• Better immunity against external electrical, magnetic
and electromagnetic fields for EMC protection• Low level of emission• Excellent accuracy to suit to high demanding
applications such as energy metering• Protection against fire and smoke, mandatory inrailway applications• 10 V/m from 1.4 GHz to 2.1 GHz( nothing specified previously ),• 5 V/m from 2.1 GHz to 2.5 GHz( nothing specified previously ).
From these three evolutions, only the radiatedelectromagnetic field immunity tests ( point n°: 3 ) and the
conducted radio frequency fields tests ( point n°: 2 ) aremandatory for transducers because they are not directly
fed by the battery and therefore not subject to lightning
strokes ( point n°: 1 ).
Insulation and safety

The EN 50155 standard dedicated to “Electronic
Equipment used on Rolling stock” in railway applications is
our standard of reference for electrical, environmental andmechanical parameters.
It guarantees the overall performances of our products inrailway environments.
Our main production centres for traction transducers are
IRIS certified, a must for companies supplying the railway
market.

The
EN 50124-1( “Basic
requirements ‑ clearancesand creepage distances for all electrical and electronicequipment” ) standard has been used as a reference todesign the creepage and clearance distances for the DV
transducers versus the required insulation levels ( rated
insulation voltage ) and the conditions of use.
For the highest possible rated insulation voltage, the DV
products have been designed with the following data :Creepage distance ( as represented below ) :236 mm (Internal dimensions)
Clearance distance ( as represented below ) :127 mm (Internal dimensions)
CTI ( Comparative Tracking Index ) : 600 V ( group I )A few reminders• Clearance distance ( the shortest distance in air between
two conductive parts )• Creepage distance ( the shortest distance along
the surface of the insulating material between two
conductive parts )DV products are CE marked as a guarantee of the productcompliance to the European EMC directive 89 / 336 / EEC
and low voltage directive. They also comply to thederived local EMC regulations ( EMC: Electro-Magnetic
Compatibility ).

• Pollution degree ( application specific ‑ this is a way toclassify the micro-environmental conditions having aneffect on the insulation )Fig. 6. Creepage and clearance distances on DV model

The transducer complies to the EN 50121‑3‑2 standard( railway EMC standard ) in its latest update, with EMC
constraints higher than that of the typical industrial
application standards.
The updates have been :1. Immunity to lightning strokes: the standard refers to
EN 61000‑4‑5 with 2 levels according to the points ofinjection
2. Immunity to conducted radio frequency fields ( equivalent
in Industry to IEC 61000‑4‑6 standard ) : the levelchanged from 3 VRMS to 10 VRMS when it is already done
at 10 VRMS for industry and traction transducers in LEM• Comparative Tracking Index (CTI linked to the kind of
material used for the insulated material) leading to aclassification over different Insulating Material groups• Simple (Basic) or Reinforced insulation need or rated
insulation voltage (UNm): an RMS withstand voltage value
assigned by the manufacturer to the equipment or a partof it, characterizing the specified permanent (over fiveminutes) withstand capability of its insulation.
• Partial Discharges: PD: a partial discharge (PD) is thedissipation of energy caused by the buildup of localized
electric field intensity; electric discharges partially bridge
the insulation.
Failure is by gradual erosion or treeing leading topuncture or surface flashover.
The PD behavior is influenced by the frequency of theapplied voltage.
The partial discharge test is to verify that no partial
discharges are maintained in the solid insulation:– at the highest steady-state voltage– at the long-term temporary overvoltage– at the recurring peak voltage
The higher the extinction partial discharges voltage
level is, the better, as no discharges happen during thenormal defined function. The partial discharges level isdefined at 10 pC.
These parameters are used to define the performances in
the following conditions of use.
The conditions of use truly determine the ability of thetransducer to support a certain insulation level.
In the following example, the DV voltage transducer is
supposed to be placed in a propulsion inverter mounted
into a train. The following conditions of use are thenassumed :• Overvoltage category : III ( Definition : Same as OV IV
defined as “circuits which are not protected against
external or internal overvoltages ( e.g. directly connectedto the contact or outside lines ) and which may beendangered by lightning or switching overvoltages” butwith less harsh overvoltage conditions and/or lower
requirements concerning safety and reliability ).
Examples : power distribution systems in installations
or lines outside of buildings protected by additional
provisions for protection.
• Pollution Degree : 3 ( definition:
dust deposit ➔ low conductivity( caused by condensation );humidity ➔ frequent condensation ).
Basic or Single insulation

In conclusion, the possible rated insulation voltage, UNm,in these conditions of use, is 17.25 kV ( the lowest value
given by the both results from the creepage and clearance
distances ).
Reinforced insulation
Let’s examine reinforced insulation for the same creepage
and clearance distances as previously defined:
When dimensioning reinforced insulation, from theclearance distance point of view, the rated impulse voltage,UNi, shall be 160 % of the rated impulse voltage requiredfor basic insulation.
The clearance distance of 127 mm is already designed
and then, we look for the reinforced insulation with thisdistance.
Reinforced UNi = 75 kV obtained with the clearance
distance of 127 mm.
Basic UNi = Reinforced UNi / 1.6 = 46.87 kV.
Reinforced UNm : From 4.8 to 6.5 kV, according to theclearance distance.
From the creepage distance point of view, whendimensioning reinforced insulation, the rated insulation
voltage UNm shall be two times the rated insulation voltage
required for the basic insulation.
With a creepage distance of 236 mm and PD3 and CTIof 600 V ( group I ), it is then allowed to have 25 mm/kV( 2 x 12.5) vs. 12.5 mm/kV previously ( for basic insulation ),leading to a possible reinforced rated insulation voltage
UNm of 9.44 kV.
In conclusion, the possible reinforced rated insulation
voltage UNm, in these conditions of use, is of from 4.8 to
6.5 kV ( the lowest value given by the both results from thecreepage and clearance distances ).
Fire and smoke
Materials used for the DV models comply with the
NFF 16101/2 standards for fire and smoke classification( tests report for materials available on request ) and are
UL94V0 ( as long as they are relevant ).
Reliability
Of course, reliability and lifetime are guaranteed by thequality in design and process. Accelerated tests have been
performed to estimate failure rate ( temperature cycles
and/or humidity test and complete characterization of the
product according to standards ).
The technology of the DV is innovative while using
renowned components and by respecting the guidelines
for high reliability applications such as the railway
environment. These efforts make it possible to guarantee
excellent reliability.

According to EN 50124‑1 standard: with clearance distanceof 127 mm and PD3, UNi ( rated impulse voltage ) = 75 kV.
With UNi = 75 kV & OV III, the rated insulation voltage( AC or DC ) called “UNm” can be 17.25 kV.
This is valid only for rolling stock applications. For fixedinstallations, the data is different.
With a creepage distance of 236 mm and PD3 and CTI of
600 V ( group I ), it is allowed to have 12.5 mm/kV, leading
to a possible rated insulation voltage UNm of 18.8 kV.

Standards & Reliability• Overvoltage category (application specific - characterizes
the exposure of the equipment to overvoltages)

Properties & Behavior & Advice

Partial discharges, test insulationand common mode behavior
Thanks to an innovative design using the insulationtransformer, the DV models guarantee insulationand partial discharge levels for high voltage
applications up to 6000 Vpk.
RMS voltage for partial discharge extinction@ 10 pC is of 5 kV,
certainly
thehighestperformance voltage transducer in its category on
the market for this parameter.
Not less than 18.5 kV as RMS voltage for AC
insulation test 50 / 60 Hz  /  1 min thanks to a
successful highly studied design.

Measuring resistor RM
The DV series supplies a current as an output
in its standard version ( provided by an internal
voltage‑current conversion ). Voltage outputs canbe easily provided on request or the output current
can be transformed into a voltage by simply
adding a load resistor called measuring resistor
RM at the output.
The value for RM is indicated in each data sheet
and is limited to a max value called RMMAX and toa min value called RMMIN and are given as per thegraphs Fig. 8 and 9.

These 2 features make the DV models unique on
the market.
Due to their low parasitic capacitance, the effectof dynamic common mode is reduced ( Fig. 7 ).

Output Current IS

250 µsRecoveryTime
700 µA = 1,4 % of VPN

Fig. 8. Maximum measuring resistor ( DV 4200 model )Common mode voltage
4200 V
Timebase: 100 µs / div
IS: 500 µA / div

Fig. 7. Typical common mode behavior ( 4200 V appliedwith dv/dt = 6 kV/µs ), only 1,4 % of VPN
as error during the dv/dt with a recovery
time of less than 250 µs.

Fig. 9. Minimum measuring resistor ( DV 4200 model )10Voltage transducer

LV 200-AW/2/6400

CV 4-6000/SP7

Competition

DV 4200

Overall accuracy(in the operating temperature range)

1.75 % @ VPN

1.43 % @ VPN

1.7 % @ VPN

1 % @ VPN

Response time @ 90% of VPN(typical value)

400 µs

50 µs

50 µs

48 µs

Common mode perturbation level(typical value)

30 % of VPN

4 % of VPN

8 % of VPN

1,4 % of VPN

Bandwidth (+/-3 dB)(typical value)

950 Hz

8 kHz

13 kHz

12 kHz

12 kVRMS /50 Hz/1 min

18.5 kVRMS /50 Hz/1 min

Insulation voltage level(minimum value)

12 kVRMS /50 Hz/1 min 13.4 kVRMS /50 Hz/1 min

Partial discharges: Extinction
voltage @ 10 pC(minimum value)

5.2 kV@ 50 pC

4.6 kV

4.3 kV

5 kV

Operating temperature range-25°C to +70°C-40°C to +85°C-40°C to +85°C-40°C to +85°C

Typical applications & conclusion
Mainly designed for medium and high voltages onboard railway applications like propulsion or auxiliary
converter, DV transducers are designed and built for
any kind of rugged environments, requiring:

The DV is the first DC class accuracy voltage transducer
on the market due to its outstanding performances overa large voltage and temperature range. It can be used
for energy monitoring and billing purposes.

• Good performances ( accuracy, gain, linearity, lowinitial offset, low thermal drift etc. )Medium and high voltages in railway applications are :• High immunity to external interferences ( generated
by adjacent currents or external perturbations forexample ) and high immunity against high voltage
variations• Reduced size: DV is the smallest voltage transducer
in its category ( up to nominal voltage of 4200 VRMS )• High flexibility and modularity for specific customer
application ( wide choice of primary and secondary
connections, current or voltage output with different
possible levels, pulse-width modulation ( PWM )output, digital output etc. )• High level of RMS voltage ( 5 kV )for partial discharges extinction @ 10 pC• High level of insulation test voltage( 18.5 kVRMS / 50 - 60 Hz/1 min )• Catenaries with the different voltage networks to bechecked at the entrance of the locomotive ( for theEurostar for example )• On-board energy meters needing voltage transducers
to feed their voltage input channels designed toreceive any traction network. Typically, they arelocated at the circuit breaker level or catenaries,
where high accuracy is required• Substations where voltage transducers monitor theDC voltages supplied to the catenaries at the DC
switchgear ( rectifier output ).
The DV has been designed to minimize current
consumption ( maximum 23 mA when supplied with+/- 24 V, Vp = 0 ) on the secondary side. LEM is proud tobe able to contribute to energy savings and is certified
ISO 14001 for environmental management standards.

• Excellent reliability

11

Performances comparison & Conclusion

DV series performances vs existing voltage
measurement solutions performances

VPN = 1200 V ... 4200 V

Data Sheet

Voltage Transducer DV series
Absolute maximum ratings
Parameter

SymbolValue

Maximum supply voltage for current output DVs(terminal +VC to -VC , no input voltage, 0.1 s)

68 V

Maximum supply voltage for voltage output DVs(terminal 0V to ±VC , no input voltage, 0.1 s)±34 V

Maximum supply voltage (working) (-40..85°C)± VC±26.4 V

Maximum input voltage (1.2/50µs exponential shape)

10 kVMaximum input voltage (DC) (-40..85°C)

VPM(6 kV for DV 4200)

Maximum steady state input voltage (-40..85°C)

VPN Fig 9(4200 V for DV 4200)

Output short circuit for output current DVs(terminal M to supply mid-point)

10 min at ±26.4 V and 85°C
For continuous short circuit, use Fig 9

ESD rating, Human Body Model (HBM)

4 kV

Absolute maximum ratings apply at 25°C unless otherwise noted.
Stresses above these ratings may cause permanent damage.
This is a stress rating only; functional operation of the device at these or any other conditions
above those indicated in the operational section of this data sheet is not implied.

Exposure to absolute maximum ratings for extended periods may degrade reliability.

Insulation characteristics
Parameter

SymbolUnit

Min

Comment

RMS voltage for AC insulation
test 50/60 Hz /1 min

Vd

kV

18.5

100% tested

Insulation resistance

RIS

MΩ

200

Measured at 500 V

RMS voltage for partial discharge
extinction @ 10 pC

Ve

V

5

Clearance distance (pri. - sec.) A-B

dCl

mm

127

Shortest distance through air

Creepage distance (pri. - sec.) A-B

dCp

mm

236

Shortest path along device body

CTI of case material

CTI

-

600

Environmental and mechanical characteristics
Parameter

SymbolUnit

Min

Ambient operating temperature

TA

°C

-40

85

Ambient storage temperature

TS

°C

-50

90

Mass

m

g

12

Typ

620

Max

Voltage Transducer DV series

Data Sheet

VPN = 1200 V ... 4200 V

Electrical data DV 4200 (as example)
At TA = 25 °C, VC = ± 24 V, RM = 100 Ω, unless otherwise noted.
Parameters with a * in the conditions column apply over the ‑40.. 85° C ambient temperature range.

Parameter

Unit

Primary nominal voltage, RMS

VPN

VPrimary voltage, measuring range

VPM

V

Measuring resistance

RM

Secondary nominal current, RMS

Min

Typ

Max

Conditions

4200

*

-6000

6000

*

Ω

0

140

*

ISN

mA

-50

50

*

Output range

IS

mA

-71.4

71.4

*

Supply voltage

±VC

V

±13.5

±24

±26.4

*

Current consumption @ VC = ±24 V

IC

mA

19 + IS23 + IS

Offset current

IO

µA

-50

0

50

Offset drift

IOT

µA

-80
-80
-100

Sensitivity

G

µA/V

Sensitivity error

ε εG

%

-0.2

%

-0.5
-0.8
-0.8

0.5
0.8
0.8

*

-25 .. 70°C
-25 .. 85°C
-40 .. 85°C

%

-0.1

0.1

*

±6000 V range

-0.3
-0.7
-1
-1

0.3
0.7
1
1

*

25°C; 100% tested-25.. 70°C
-25 .. 85°C
-40 .. 85°C

Thermal drift of sensitivity
Linearity error

εL

80
80
100

*

11.90480Overall accuracy

XG% of VPN

Output current noise

inoµA RMS

10Reaction time @ 10 % of VPN

tra

µs

21

Response time @ 90 % of VPN

tr

µs

48

Frequency bandwidth

BW

kHz

12
6.5
1.6

ms

190

Start-up time

100% tested-25 .. 70°C
-25 .. 85°C
-40 .. 85°C; 100% tested
50 mA for 4200 V

0.2

1 Hz to 100 kHz

60

0 to 4200 V step, 6kV/µs
3 dB
1 dB
0.1 dB250*

Primary resistance

R1

MΩ

23

*

Total primary power loss @ VPN

P

W

0.77

*

13

VPN = 1200 V ... 4200 V

Data Sheet

Voltage Transducer DV series
DV series - Dimensions

Dimensions in mm. 1 mm = 0.0394 inches

SafetyThis transducer must be used in electric/electronic equipmentwith respect to applicable standards and safety requirements inaccordance with the manufacturer’s operating instructions.

Mechanical characteristics
General tolerance± 0.5 mm

Fastening of transducer

4 notches 6.5 mm
4 steel screws M6+ washer ext. dia. 18 mm

Recommended fastening torque 5.00 Nm or 3.70 Lb. -Ft.

Caution, risk of electrical shockc

Connection of primary

M5 threaded studs

When operating the transducer, certain parts of the module cancarry hazardous voltage (eg. primary busbar, power supply).

Connection of secondary

M5 threaded studs

Ignoring this warning can lead to injury and/or cause serious damage.

Recommended fastening torque 2.5 Nm or 1.85 Lb. -Ft.

RemarkIS is positive when VP is applied on terminal +HT.

14mThis 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.

LEM’s Warranty
5 Year Warranty
on LEM Transducers
LEM designs and manufactures high quality andhigh reliability products for its customers over the entire world.
Since 1972, we have delivered several million current and voltage transducers which are,for most of them, still in operation on traction vehicles, industrial motor drives,
UPS systems and many other applications requiring high quality standards.
Our 5 year warranty applies on all LEM transducers
and is valid in addition to the legal warranty.
The warranty granted on our Transducers is for a periodof 5 years (60 months) from the date of their delivery.
During this period we shall replace or repair at our cost all defective parts(provided the defect is due to defective material or workmanship).
Further claims as well as claims for the compensation of damages, which do
not occur on the delivered material itself, are not covered by this warranty.

All defects must be notified to us immediately and faulty material must be returnedto the factory along with a description of the defect.
Warranty repairs and or replacements are carried out at our discretion.
The customer bears the transport costs. An extension of the warranty period following
repairs undertaken under warranty cannot be granted.
The warranty will be invalidated if the buyer has modified or repaired, or has had repairedby a third party the material without LEM’s written consent.
The warranty does not cover any damage caused byincorrect conditions of use and cases of force majeure.

No responsibility will apply except legal requirements regarding product liability.
The warranty explicitly excludes all claims exceeding the above conditions.

LEM International, April 1. 2008

Paul Van Iseghem
President & CEO LEM

15

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Africa • America
Asia • Pacific

LEM International Sales Representatives

Austria
LEM Components
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FinlandETRA Electronics Oy
Lampputie 2
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Tel. +358 207 65 160
Fax +358 207 65 23 11
e-mail: markku.soittila@etra.fi
Field Applications Engineer
Mr. Pasi Leveälahti
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Central Office:
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Fax +49 7144 28 15 05
e-mail: electronics@hauber-graf.de
Hungary
Orszaczky Trading LTD.
Korányi Sandor U, 28
H-1089 Budapest
Tel. +36 1 314 4225
Fax +36 1 324 8757
e-mail: info@orszaczky.hu

Iran
MGT
Mansoureh Tehrani
IR-TehranTel. +9821 22 37 46 05
Fax +9821 22 37 46 04
Mobile + 98912 113 81 56
e-mail: mgt@tavana.net
IsraelOfer Levin TechnologicalApplication
PO Box 18247
IL- Tel Aviv 611 81
Tel.+972 3 5586279
Fax +972 3 5586282
e-mail: ol_teap@netvision.net.il
Italy
LEM Italia Srl
via V. Bellini, 7I-35030 Selvazzano Dentro, PD
Tel. +39 049 805 60 60
Fax +39 049 805 60 59
e-mail: lit@lem.com
NorwayHolst & Fleischer A/SStanseveien 6B
N-0975 OsloTel. +47 2333 8500
Fax +47 2333 8501
e-mail: hf@hf-elektro.no
PolandDACPOL Sp. z o.o.
Ul. Pulawska 34
PL-05-500 Piaseczno
Tel. +48 22 70335100
Fax +48 22 7035101
e-mail: dacpol@dacpol.com.pl
Portugal
QEnergia, Lda
Praceta Cesário Verde - 10 S/CaveP-2745-740 MassamáTel. +351 214 309320
Fax +351 214 309299
e-mail: qenergia@qenergia.pt

Romania
SYSCOM -18 Srl.
Protopopescu 10, bl. 4. ap 2 Sector 1
RO-011728 Bucharest
Tel. +40 21 310 26 78
Fax +40 21 316 91 76
e-mail:george.barbalata@syscom18.com
RussiaCentral Office:
TVELEM
Marshall Budionny Str.11
170023 Tver / Russia
Tel. +7 48 22 743 951
Fax +7 48 22 743 955
e-mail: tvelem@lem.com
TVELEM
Baltijskaja str., 13, Room 19125190 Moscow
Tel. +7 495 363 07 67
Fax +7 495 363 07 67
e-mail: tvelem@alo.ru
TVELEM
V.O., 2 linia, 19, Liter „A“
199053 S. Petersburg
Tel. +7 812 323 83 83
Fax +7 812 323 83 83
e-mail: info@maglem.ru
Slovenia
Proteus ElectricVia di Noghere 94/1
I-34147 Muggia-Aquilinia
Tel. +39 040 23 21 88
Fax +39 040 23 24 40
e-mail:dino.fabiani@proteuselectric.it
Spain
LEM Components
Apartado 142
E-08500 VIC
Tel. +34 93 886 02 28
Fax +34 93 886 60 87
e-mail: slu@lem.com

SwedenADIATOR A.B.
Hälsingegatan 40
SE-10435
Tel. +46 8 729 1700
Fax +46 8 729 1717
e-mail: info@adiator.se
Beving Electronik AB
Storsätragränd 10
S. 12739 Skärholmen
Tel. +46 8 680 1199
Fax +46 8 680 1188
e-mail: lars.g.pahlsson@beving.se
Switzerland
SIMPEX Electronic AG
Binzackerstrasse 33
CH-8622 Wetzikon
Tel. +41 1 931 10 10
Fax +41 1 931 10 11
e-mail: contact@simpex.ch
LEM SA
8, Chemin des Aulx
CH-1228 Plan-les-Ouates
Tel. +41 22 706 11 11
Fax +41 22 794 94 78
e-mail: lsa@lem.com
TurkeyÖzdisan Electronik Pazarlama
Galata Kulesi Sokak N° 34
TR-80020 Kuledibi / Istanbul
Tel. +90 212 2499806
Fax +90 212 2436946
e-mail: oabdi@ozdisan.com
UkraineOOO “SP DAKPOL”
Snovskaya str., 20
UA-02090, KIEV, UKRAINE
Tel. +380 44 501 93 44
Fax +380 44502 64 87
e-mail: kiev@dacpol.com
United Kingdom and Eire
LEM UK Ltd
West Lancs Investment Centre
Whitemoss Business Park
Skelmersdale, Lancs WN8 9TG
Tel. +44 1 695 71 25 60
Fax +44 1 695 71 25 61
e-mail: luk@lem.com

Argentina
Semak S.A.
Av. Belgrano 1580, 5° Piso
AR-1093 BUENOS AIRES
Tel. +54 11 4381 2108
Fax +54 11 4383 7420
e-mail: mpedro@semak.
com.arBrazilAMDS4 Imp. Exp. e Com. deEquip. Electr. Ltda.
Rua Doutor Ulhôa Cintra, 489,
Centro 13800-061 Moji Mirim - Sao Paulo - Brazil
Tel. +55 19 3806 1950 / 8509
Fax +55 19 3806 8422
e-mail:jeduardo@amds4.com.br

Canada Ontario East
Optimum Components Inc.
7750 Birchmount Road Unit 5
CAN-Markham ON L3R 0B4
Tel. +1 905 477 9393
Fax +1 905 477 6197

Chile
ELECTROCHILE Ltda.
3 Norte # 1377
Viña del Mar Fonos
Tel. +56 32 268 73 36
Fax +56 32 268 90 07
e-mail: ventas@electrochile.cl
South Africa
Denver Technical Products Ltd.
P.O. Box 75810
SA-2047 Garden View
Tel. +27 11 626 20 23

U.S.A
Central Office:LEM U.S.A., Inc.
11665 West Bradley Road
USA Milwaukee, Wi 53224
Tel. +1 414 353 07 11
Toll free: 800 236 53 66
Fax +1 414 353 07 33
e-mail: lus@lem.com
LEM U.S.A., Inc
991, Michigan Avenue.
USA-Columbus, OH 43201
Tel. +1 414 353 07 11 ext. 200
Fax +1 614 540 74 36
Mobile +1 614 306 73 02
e-mail: afg@lem.com

LEM U.S.A., Inc.
37 Thornton Ferry Road II
USA-Amherst, NH 03031
Tel. +1 800 236 53 66 ext. 202
Fax +1 603 672 71 59
e-mail: gap@lem.com
LEM U.S.A., Inc.
6275 Simms st.
Suite # 110
USA Arvada, CO 80004
Tel. +1 800 236 53 66 ext. 201
Fax +1 303 403 15 89
e-mail: dlw@lem.com

Australia and New Zealand
Fastron Technologies Pty Ltd.
25 Kingsley Close
Rowville - Melbourne Victoria 3178
Tel. +61 3 9763 5155
Fax +61 3 9763 5166e-mail: sales@fastron.com.au
China
Beijing LEM Electronics Co. Ltd
No. 1 Standard Factory
Building B, Airport Industry
Area, Beijing, China
Post code : 101300
Tel. +86 10 80 48 31 78
Fax +86 10 80 48 43 03
e-mail: bjl@lem.com
Beijing LEM Electronics Co. Ltd
Shanghai Office
Room 807
728, Xinhua Road
Shanghai, 200052 P.R. China
Tel. +86 21 3226 0881
Fax +86 21 5258 2262
e-mail: bjl@lem.com

Beijing LEM Electronics Co. Ltd
Shenzhen Office
Room 1205
6021 Shennan Road
Shenzen, 518040 P.R. China
Tel. +86 755 3334 0779
+86 755 3336 9609
Fax +86 755 3334 0780
e-mail: bjl@lem.com
India
LEM Management Services SA
India Branch Office
Mr. Sudhir Khandekar
Tel. +91 98 331 35 223
e-mail: skh@lem.com
Globetek
122/49, 27th Cross
7th Block, Jayanagar
IN-Bangalore-560082
Tel. +91 80 2 663 57 76
Fax +91 80 2 653 40 20
e-mail: globetek@vsnl.com

Young Woo Ind. Co.
C.P.O. Box 10265
K-SeoulTel. +82 312 66 88 58
Fax +82 312 66 88 57
e-mail: c.k.park@ygwoo.co.kr
Malaysia
Acei Systems SDN BHD
1A & 1A-1, Lintasan
Perajurit 6,
Taman Perak
31400 Ipoh
Perak Darul Ridzuan
Malaysia
Tel. +60 5 547 0761/0771
Fax +60 5 547 1518
e-mail: enquiry@aceisys.com.my
Singapore
Overseas Technology Center Pte Ltd.
Blk 1003 Bukit
Merah Central
Unit 06-16
Technopreneur Centre
RS-159 836 Singapore
Tel. +65 6 272 60 77
Fax +65 6 278 21 34
e-mail: otcpl@singnet.com.sg

TaiwanPOWERTRONICS CO. LTD
2F, No 138, Sec. 3
Chung-shing Rd, Shing-Tien,
Taipei -Hsien 231, Taiwan, R.O.C.
Tel. +886 2 2915 7000
Fax +886 2 2915 3910
e-mail: sales@powertronics.
com.tw
Tope Co., Ltd.
3F-4, 716 Chung Cheng Road
Chung Ho City, Taipei Hsien,
Taiwan 235, R.O.C
Tel. +886 2 8228 0658
Fax +886 2 8228 0659
e-mail: tope@ms1.hinet.net

e-mail: mikep@
optimumcomponents.com

Canada Manitoba West
William P. Hall Contract Services
7045 NE 137th st.
CAN-Kirkland,
Washington 98034
Tel. +1 425 820 6216
Fax +1 206 390 2411

Fax +27 11 626 20 09
e-mail: denvertech@pixie.co.za

Japan
LEM Japan K.K.
2-1-2 Nakamachi
J-194-0021Machida-Tokyo
Tel. +81 4 2725 8151
Fax +81 4 2728 8119
e-mail: ljp@lem.com
LEM Japan K.K.
1-8-33-607 Nishimiyahara
Yodogawa-Ku Osaka
532-0004 Japan
Tel. +81 6 6395 4073
Fax +81 6 6395 4079
e-mail: ljp@lem.com
Korea
S&H Trading#Ra-3701, Jungang Yootong Danji
1258, Kurobon-Dong, Kuro-Ku,
K-Seoul, 152-721
Tel. +82 2 2686 83 46+82 2 2613 83 45
Fax +82 2 2686 83 47
e-mail: snhlim@yahoo.co.kr

Distributor

LEM International SA
8, Chemin des Aulx, CH-1228 Plan-les-Ouates
Tel. +41/22/7 06 11 11, Fax +41/22/7 94 94 78
e-mail: Isa@lem.com; www.lem.com
Publication CH 28103 E (09.08 • 5 • CDH)