EMTEST coupling NX5 bs-3-480-16 User manual

Manual
f o r O p e r a t i n g
coupling NX series
3-phase coupling decoupling network
Testing of electronic modules with EFT/burst and 1.2/50s
Surge pulses up to 5 kV, 2.5 kA
The coupling NX series coupling decoupling network is used to
couples the surge and burst pulses from the compact NX5
generator to a three phase test object
(coupling as per. IEC standard).
The coupling NX coupling decoupling network is controlled from
EM Test transient generator of the compact NX- series.
Burst, Surge Pulse as per.
–IEC 61000-4-4
–IEC 61000-4-5
Version:
1.03 / 30.01.2017
the benchmark for emc
Replaces:
1.02 / 22.12.2016
Filename:
UserManual-coupling-NX-E-V1.03.doc
Print date:
30.01.17

EM TEST coupling NX
Manual of operation V 1.03 2 / 53
EM TEST (Switzerland) GmbH
Sternenhofstrasse 15
4153 Reinach BL1
Switzerland
Phone : [phone]
Fax : [phone]
URL : http://www.emtest.com
Copyright © 2017 EM TEST (Switzerland) GmbH
. All right reserved.
Specifications subject to change

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Manual of operation V 1.03 3 / 53
Contents
1. General ...........................................................................................................................................................5
1.1. Purpose.................................................................................................................................................5
1.2. Warranty Terms.....................................................................................................................................5
1.3. Product return procedure......................................................................................................................6
1.4. Recycling and Disposal.........................................................................................................................6
1.4.1. RoHS directive 2011/65/EU (RoHS 2)..................................................................................................6
1.4.2. WEEE directive 2012/19/EU.................................................................................................................6
1.4.3.Dismantling information.........................................................................................................................6
1.4.4. Parts which can be recycled .................................................................................................................6
10.5 Parts which cannot be recycled ............................................................................................................6
2. Safety information.........................................................................................................................................7
2.1. Intended use..........................................................................................................................................7
2.2. Responsibility of the operator................................................................................................................7
2.3. General hazard......................................................................................................................................7
2.4. Qualification of personnel......................................................................................................................8
2.5. Safety label on the device.....................................................................................................................8
2.6. Prohibition of unauthorized conversions and modifications..................................................................8
3. Installation put in service .............................................................................................................................9
3.1. Safety instructions for installation and initial installation.......................................................................9
3.1.1. Qualifications of the staff.......................................................................................................................9
3.1.2. Installation.............................................................................................................................................9
3.2. Installation of the coupling NX series..................................................................................................10
3.2.1. Unpacking ...........................................................................................................................................10
3.2.2. Grounding and power connection.......................................................................................................11
3.2.3. Mains Switch and fuse ........................................................................................................................12
3.2.4. Connecting the compact NX5 system to the ground reference ..........................................................12
3.2.5. Connecting System coupling NX with compact NX5 generator..........................................................13
4. List of coupling networks...........................................................................................................................14
4.1. Coupling networks for IEC pulses.......................................................................................................14
4.2. Special Coupling networks for IEC pulses..........................................................................................14
5. Operating Functions ...................................................................................................................................15
5.1. coupling NX5 bs-3-480-16 / 32 ...........................................................................................................15
5.1.1. Front view coupling NX5 bs-3-480-16 / 32..........................................................................................15
5.1.2. Rear side coupling NX5 bs-3-480-16 / 32...........................................................................................16
5.2. Rack with built in coupling NX5-bs-480-125 .......................................................................................17
5.2.1. Front and rear view coupling NX5-bs-480-125...................................................................................17
5.2.2. Connecting plate coupling NX5 bs-3-480-125 Rack...........................................................................18
5.3. Rack with built in Coupling NX5-bs-3-690-200.3................................................................................19
5.3.1. Front and rear view coupling NX5-bs-3-690-200.3.............................................................................19
5.3.2. Front and rear view coupling NX5 bs-3-690-200.x .............................................................................20
5.3.3. Connecting plate coupling NX5 bs-3-690-200.3 Rack........................................................................21
5.3.4. Current Range selector NX5 bs-3-690-200 ........................................................................................23
6. General .........................................................................................................................................................24
6.1. Coupling modes ..................................................................................................................................24
6.2. Coupling to Signal Lines .....................................................................................................................24
6.3. Surge coupling decoupling networks rated up to 200 A .....................................................................25

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Manual of operation V 1.03 4 / 53
7. Technical Data coupling NX.........................................................................................................................26
7.1. Technical data coupling decoupling models.......................................................................................26
7.1.1. Technical data coupling NX5 bs-3-480-xx..........................................................................................26
7.1.2. Technical data coupling NX5 bs-3-690-xx.y .......................................................................................27
7.1.3. Technical data coupling NX5 bs-3-690-xx.2 and coupling NX5 bs-3-690-xxx.3.................................28
7.2. Coupling capacitors and decoupling inductances...............................................................................29
7.2.1. Burst coupling to capacitive coupling clamp for signal- and data lines...............................................29
7.2.2. Surge coupling ....................................................................................................................................29
7.3. DC current capability of coupling NX devices.....................................................................................30
7.4. General................................................................................................................................................31
7.5. Control supply and Safety...................................................................................................................31
7.6. Environment conditions.......................................................................................................................31
8. Operation......................................................................................................................................................32
8.1. Power supply input (EUT)...................................................................................................................32
8.2. Synchronization...................................................................................................................................32
8.3. Operation with coupling NX or generator internal CDN......................................................................33
8.4. Connection of DC Equipment..............................................................................................................33
9. Test set up....................................................................................................................................................34
9.1. Test setup for Burst impulses...............................................................................................................34
9.2. Test level with Burst as per IEC 61000-4-4 Ed.2................................................................................34
9.3. Test setup for Surge impulses..............................................................................................................35
9.3.1. Surge coupling to power lines.............................................................................................................35
9.3.2. Surge coupling to signal- and data lines.............................................................................................35
10. Maintenance and calibration......................................................................................................................36
10.1. General................................................................................................................................................36
10.2. Calibration and Verification.................................................................................................................36
10.2.1. Factory calibration..........................................................................................................................36
10.2.2. Guideline to determine the calibration period of EM Test instrumentation ....................................36
10.2.3. Calibration of Accessories made by passive components only: ....................................................36
10.2.4. Periodically In-house verification....................................................................................................36
11. Delivery Groups...........................................................................................................................................37
11.1. Basic equipment..................................................................................................................................37
11.2. Accessories and options .....................................................................................................................37
12. Appendix ......................................................................................................................................................38
12.1. Declaration of CE-Conformity .............................................................................................................38
12.1.1. Declaration of CE-Conformity Coupling Network coupling NX5 bs-3-480-16 / 32.........................38
12.1.2. Declaration of CE-Conformity Coupling Network coupling NX5 bs-3-480-xx.1.............................39
12.1.3. Declaration of CE-Conformity Coupling Network coupling NX5 bs-3-690-16 / 32.........................40
12.1.4. Declaration of CE-Conformity Coupling Network coupling NX5 bs-3-690-xx.1.............................41
12.1.5. Declaration of CE-Conformity Coupling Network coupling NX5 bs-3-690-xx.2.............................42
12.1.6. Declaration of CE-Conformity Coupling Network coupling NX5 bs-3-690-xx.3.............................43
12.2. General diagram ................................................................................................................................44
12.2.1. General diagram coupling NX5 models for 16 A and 32 A ............................................................44
12.2.2. General diagram Test System Coupling NX5-b - 100A .................................................................45
12.2.3. General diagram Test System Compact NX5-bs Coupling 125 A.................................................46
12.2.4. General diagram Test System compact NX5-bs coupling NX5 bs-3-690-200.3............................47
12.3. Inrush current.....................................................................................................................................49
12.4. 100 A Plugs and connectors from Multi Contact................................................................................50
12.5. 200 A Plugs and connectors from Multi Contact................................................................................51
12.5.1. Multi Contact MC Locking system (AR-system).............................................................................52
12.5.2. Multi Contact MC Crimping materials.............................................................................................53

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Manual of operation V 1.03 5 / 53
1.
General
The following manual is based on the following product family:
- coupling NX5 family
1.1.
Purpose
The coupling NX5 family is a 3-phase coupler for coupling Burst and Surge transient impulses to 3- phase supply
lines. It couples conducted electromagnetic interference effects for immunity testing to a test equipment
according international, national, and manufacturers’standards.
The system is designed for full compliance conducted electromagnetic compatibility (EMC) test requirements.
The application range is for testing of industrial, light industrial, household or commercial equipment, including
many product family and product standards as per following basic standards
- IEC 61000-4-4
EFT / Burst
- IEC 61000-4-5
Surge
- IEC 61000-4-9
Pulse Magnetic Field applied to a loop antenna
1.2.
Warranty Terms
EM TEST (Switzerland) GmbH, provides this written warranty covering the product stated above, and if the buyer
discovers and notifies EM TEST (Switzerland) GmbH in writing of any defect in material or workmanship within
the applicable warranty period stated above, then EM TEST may, at its option: repair or replace the product; or
issue a credit note for the defective product; or provide the buyer with replacement parts for the product.
The buyer will, at its expense, return the defective product or parts thereof to EM TEST in accordance with the
return procedure specified below. EM TEST will, at its expense, deliver the repaired or replaced product or parts
to the buyer. Any warranty of EM TEST will not apply if the buyer is in default under the purchase order
agreement or where the product or any part thereof:
is damaged by misuse, accident, negligence or failure to maintain the same as specified or required by
EM TEST;
is damaged by modifications, alterations or attachments thereto which are not authorized by EM TEST;
is installed or operated contrary to the instructions of EM TEST;
is opened, modified or disassembled in any way without EM TEST’s consent; or
is used in combination with items, articles or materials not authorized by EM TEST.
The Buyer may not assert any claim that the products are not in conformity with any warranty until the buyer has
made all payments to EM TEST provided for in the purchase order agreement.

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Manual of operation V 1.03 6 / 53
1.3.
Product return procedure
1. Request a Return Material Authorization (RMA) number from the local EM TEST representative
2. When requesting an RMA, have the following information ready:
- Model number
- Serial number
- Description of the problem
NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s expense.
NOTE: A returned product found upon inspection by EM TEST, to be in specification is subject to an
evaluation fee and applicable freight charges.
1.4.
Recycling and Disposal
1.4.1.
RoHS directive 2011/65/EU (RoHS 2)
RoHS directive 2011/65/EU (RoHS 2)
The EM TEST compact NX5 series generator complies with the directive 2011/65/EU (RoHS - Restriction of
certain Hazardous Substances).
From December 2005, all EM TEST products either hand soldered or by machine are produced using lead-free
solder.
1.4.2.
WEEE directive 2012/19/EU
The EM TEST coupling NX series couplers are dedicated under category 9 in the directive 2012/19/EU (WEEE).
The product should be recycled through a professional organization with appropriate experience for the disposal
and recycling of electronic products. EM TEST is also available to help with questions relating to the recycling of
this equipment.
1.4.3.
Dismantling information
Always remove power cord first. There is no special danger involved in dismantling the coupling NX series.
1.4.4.
Parts which can be recycled
The NX coupling contains parts made from steel, aluminum, PVC, two-component sealing compound. The
impulse capacitors are filled with non-poisonous mineral oil. The various parts can be separated and recycled.
10.5 Parts which cannot be recycled
All parts in the coupling NX series can be recycled.

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Manual of operation V 1.03 7 / 53
2.
Safety information
Attention
Before using this equipment, read the operating manual and the
separate delivered safety manual carefully
2.1.
Intended use
The “compact NX” test system with his coupling NX series is designed primarily for conducted transient
interference tests as specified in the European generic standards IEC/EN 61000-6-1 to cover equipment for
household, office and light industrial use, and IEC/EN 61000-6-2 for applications in industrial environments. The
“compact NX” generates these tests in accordance with IEC/EN 61000-4-4, -4-5, -4-11, -4-18 and -4-29,
depending of the model configuration. Accessories are available for generating optional tests to IEC/EN 61000-4-
8 and -9.
The EMC Directive 2014/30/EU (for the assignment of the CE mark) refers to these standards and to this type of
equipment.
2.2.
Responsibility of the operator
These operating instructions form an essential part of the equipment and must be available to the operator at all
times. The user must obey all safety instructions and warnings.
WARNING
The purpose of this instrument is the generation of defined interferences signals for EMI
immunity testing. Depending on the arrangement of the test rig, the configuration, the
cabling and the properties of the EUT itself, a significant amount of electromagnetic
radiation may result that could also affect other equipment and systems.
The equipment is designed to operate in industrial environment. For operating in other or
sensitive environment, such as light industry, airport area…, the user may use a shielded
room for operate.
The user himself or herself is ultimately responsible for the correct and controlled operation
of the rig. In case of doubt, the tests should be carried out in a Faraday cage.
2.3.
General hazard
Before applying power to the system, verify that your product is configured properly for your particular application.
WARNING
The compact NX system and its accessories operate at high voltages.
Hazardous voltages may be present when covers are removed. Qualified personnel must
use extreme caution when servicing this equipment.
Circuit boards, test points, and output voltages also may be floating above (below) chassis
ground.
Only qualified personnel who deal with attendant hazards in impulse generators, are allowed to perform
installation and servicing.
Ensure that the AC power line ground is connected properly to the Power Rack input connector or chassis.
Similarly, other power ground lines including those to application and maintenance equipment must be grounded
properly for both personnel and equipment safety.
Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any cable.
The user must ensure that the output power lines are labeled properly as to the safety hazards and that any
inadvertent contact with hazardous voltages is eliminated.

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Manual of operation V 1.03 8 / 53
Guard against risks of electrical shock during open cover checks by not touching any portion of the electrical
circuits. Even when power is off, capacitors may retain an electrical charge. Use safety glasses during open
cover checks to avoid personal injury by any sudden component failure.
Neither AMETEK CTS, or EM TEST (Switzerland) GmbH, nor any of the subsidiary sales organizations can
accept any responsibility for personnel, material or inconsequential injury, loss or damage that results from
improper use of the equipment and accessories.
WARNING Personnel fitted with a heart pacemaker must neither operate
the instrument nor approach the test setup while a test is being
executed.
Only approved accessories, connectors, adapters, etc. are to be used to ensure safe operation.
2.4.
Qualification of personnel
The coupling NX series must be operated only by authorized and trained specialists.
2.5.
Safety label on the device
Please take note of the following explanations of the symbols used in order to achieve the optimum benefit from
this manual and to ensure safety during operation of the equipment.
This symbol warns of a potential risk of shock hazard. The symbol on an instrument
shows that that it can source 1000 volt or more, including the combined effect of
normal and common mode voltages. Use standard safety precautions to avoid
personal contact with these voltages.
This symbol indicates where a caution is required. Refer to the operating instructions
located in the manual in order to protect against personal injury or damage the
equipment
CAUTION
The CAUTION symbol indicates a potential hazard. It calls attention to a procedure,
practice or condition which, if not followed, could possibly cause damage to equipment.
Such damage may invalidate the warranty. If a CAUTION is indicated, do not proceed
until its conditions are fully understood and met.
WARNING
The WARNING symbol indicates a potential hazard. It calls attention to a procedure,
practice or condition which, if not followed, could possibly cause bodily injured or
death. If a WARNING is indicated, do not proceed until its conditions are fully
understood and met.
2.6.
Prohibition of unauthorized conversions and modifications
The user is not entitled to the device to perform its own modifications and adaptations. Modifying parts on the
generator by unauthorized persons will void the warranty of the device and the correct functioning cannot be
guaranteed.

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3.
Installation put in service
This chapter includes a checklist with steps that should be taken before the coupling NX series is switched on
and put into operation.
3.1.
Safety instructions for installation and initial installation
National regulations in installation and operation of electrical equipment must be respected.
WARNING The coupling NX series test system is not suitable for use in an explosive
atmosphere.
WARNING Connect the EUT only after the initial system setup has finished.
3.1.1.
Qualifications of the staff
Basic knowledge of electrical engineering and electromagnetic compatibility is required to service the unit. The
national regulations for installation of electrical equipment as well as the safety at work of electrical equipment
must be known to the user.
3.1.2.
Installation
The coupling NX series system conforms to protection class 1. Local installation regulations must be respected to
ensure the safe flow of leakage currents.
WARNING Operation without a ground connection is forbidden!
Two independent ground connections are necessary - one for the test system and one for the EUT. These must
be connected back to the local permanent installation or to a fixed, permanent ground conductor.
Operate the equipment only in dry surroundings. Any condensation that occurs must be allowed to evaporate
before putting the equipment into operation. Do not exceed the permissible ambient temperature or humidity
levels. Use only officially approved connectors and accessory items.
Ensure that a reliable return path for the interference current is provided between the EUT and the generator.
The ground reference plane and the ground connections to the instruments, as described in the relevant test
standards, serve this purpose well.
The test system may only be opened by a qualified specialist upon specific instruction given by the manufacturer.
The equipment works, on principle, with two independent power supplies, one for the generator and one for the
EUT. The coupling NX series must be disconnected from both sources before any modifications to the test setup
are undertaken. Besides the mains connections themselves, certain components also operate at high voltages,
and are not provided with any form of extra protection against accidental contact.
The system complies with the safety requirements of IEC/EN 61010-1 (Safety requirements for electrical
equipment for measurement, control and laboratory use).
It is the user’s responsibility to ensure that the test rig does not emit excessive electromagnetic interference (EMI)
that might affect other equipment. The test system itself does not produce any excessive radiation; however, the
injection of interference pulses into the EUT can result in the device and/or its associated cables radiating EMI.
To avoid radiating unwanted interference the standards organizations recommend that the test setup be located
in a Faraday cage.
Since the purpose of the test system is to produce interference signals for interference immunity testing, the
requirements in the IEC/EN 61000 series concerning limiting the radiated EMI can only be complied with by
operating the test system inside a Faraday cage.

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Manual of operation V 1.03 10 / 53
3.2.
Installation of the coupling NX series
3.2.1.
Unpacking
Check the packaging for signs of damage in transit. Any damage should be reported immediately to the
transportation company and the local representative.
Lift the coupling NX out of its packaging. Place the test system so that there is sufficient free space around the
cooling air inlets on both sides and behind the fan outlet on the rear panel.
NOTE Do not dispose of packaging materials. All packaging should be retained in the event that
the instrument or any of its accessories should need to be returned to a EM TEST service
center for repair or calibration.
Using the following list, check that all the items ordered have been delivered:
1. coupling NX-series CDN
2. Safety manual (only one per delivery)
3. 1 Power mains cable for the coupler supply, country coded
4. 1 HVS –Banana –Banana, 0.3 m (3HU) or 0.5 m (6HU) HV cable, 1 x red, 1 x black
5. 1 BCC 350 –Coax –Coax, 0.4 Meter HV cable SHV - SHV
6. 1 SLC 500 Sys Link Cable, 0.5 Meter, NX5 to compact NX5
7. 1 3-phase EUT supply input cable, 2.0 Meter, 3* black, 1* blue, 1* yegn
8. 1 ESA2, EUT supply adapter 1 phase country coded and 3 phase 16 A or 32 A
9. Earth connection, 0.3 m brass bar including mounting parts (screws M4 x 10)
10. Earth connection, 0.3 m brass bar, mounting parts has to be prepared and mounted by the user
11. User manual (pdf on the delivered memory stick)
12. Optional items, as ordered
If additional equipment is ordered
- SLC xxx ;Sys Link Cable with various cable length
Check the equipment for signs of transport damage. Any damage should be reported to the Transportation
Company and local representative immediately.

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3.2.2.
Grounding and power connection
Two independent ground connections are necessary- one for the test system and one for the EUT. These must
be connected back to the local permanent installation or to a fixed, permanent ground conductor. To avoid
electric shock, the power cord protective grounding conductor must be connected to ground.
System GND
The system is connected to GND via the earth wire of the connected mains power cable for the coupling,
generator and the EUT supply. A separate GND wire from the reference GND plane to the building earth point
may be useful to avoid interferences to other areas.
EUT GND
Ensure that a reliable return path for the interference current is provided between the EUT and the generator.
The GND wire from the generator to the reference GND and must be designed as a low inductance connection
suitable for high frequencies. The reference ground plane and the ground connections to the instruments, as
described in the relevant test standards, serve this purpose well.
Protection (optional)
A proposal is to separate protection of the EMC system with filters, insulation transformer or fault current
protection and other measures may be useful for the EMC installation. The advantage is the separation of the
EMC system from all other installation.
A shielded room with adequate filters may be the best solution for avoid unwanted conducted and radiated
interference to other areas.

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3.2.3.
Mains Switch and fuse
The mains power voltage indicated on the instrument must correspond with the local supply voltage (mains
voltage: 85–265 Vac, universal power unit, mains frequency: 50–60 Hz).
Mains Switch, fuse holder and power input
To replace a fuse:
1) Disconnect the mains cable
2) Pull the fuse holder out of the connector
3) Remove the damaged fuse(s)
4) Insert 2 fuses, (2 x 2 A / 230 V slow blow)
5) Replace the fuse holder
6) Plug the mains cable into a power outlet with a solid ground
connection
7) Switch the system on and operate as instructed in this manual
3.2.4.
Connecting the compact NX5 system to the ground reference
Connection to reference ground
Connection to reference ground
For burst tests, the generator must be placed on a ground
reference plane which is connected to ground.
A low inductive high frequency ground connection between the
test system and the ground reference plane (GRP) is absolutely
essential for performing burst tests correctly.
Earth bolt dimension
Earth bolt dimensions:
Screws: Metric M4 x 10 mm
Distance: 10.1 mm x 11 mm
Plug: Banana plug, 4 mm

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3.2.5.
Connecting System coupling NX with compact NX5 generator
When setting up the test national and international regulations regarding human safety have to be guaranteed.
All units, the surge generator, the EFT and the coupling matrix can be installed one
above the other. The coupling matrix should be used as central output for the EUT
and should be mounted directly onto the ground reference plane.
The compact NX5 has to be mounted directly above the coupling NX5 due to the short
HV cable. It is recommended to connect the simulator to the ground reference plane
of the test set-up.
Figure 6.1: Example of a test rack with compact NX5 and coupling NX5 bs-3-480-16
Connect the following cables between the generator and coupling network
Name
Length [m]
Connection
Remark
1
SLC 500, Sys Link cable
0.5 m, (1.0 m)
compact NX5 –coupling NX
26 pole D-Sub High Density
2
BCC 350, HVS Burst cable
0.4 m
compact NX5 –coupling NX
Coaxial cable
3
HVS Surge cable
0.5 m
compact NX5 –coupling NX
2 cable for HV and COM
4
Earth connection
0.3 m
compact NX5 –coupling NX
300 mm x 23 mm; 25 mm2
5
Earth connection
0.3 m
coupling NX –Ref GND
300 mm x 23 mm; 25 mm2
6
Power mains cable
2 m
Mains –Supply coupling
85V to 154 V 50 / 60 Hz
7
EUT mains
To define
Mains 3-ph –EUT input
Ext fuse required
Connection front side:
1. BCC 350, Burst connection cable. Coaxial cable for connect the
EFT Burst pulse from the generator to the coupling.
2. Burst output to a capacitive coupling clamp CCI with the coaxial
connection cable BCC 1000.
3. Output to the EUT. Burst and Surge pulses are coupled to the
supply lines.
4. Surge output to external CDN for data lines via a HVS cable.
Figure 6.2: Front side compactNX5 with coupling NX5
Connection rear side:
1. Copper braid for earth the generator and coupling
2. HVS Surge cable
3. SCC AD, Safety circuit Adapter (Sys.link)
4. SLC 500 Sys.Link cable (Daisy chain)
5. SWL AD, Safety warning Lamp Adapter (Sys.link)
6. Mains supply (control)
7. EUT supply input
8. Earth connection to reference ground plane with low inductance
connection.
Figure 6.3: Rear side compact NX5 with coupling NX5

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4.
List of coupling networks
The separator at the end of the device name has the following meaning:
No separator: one current range
…xxx.1 The device includes taps for cover more than one current range
4.1.
Coupling networks for IEC pulses
3- phase Coupling Network for Burst up to 5.5 kV and Surge up to 5 kV impulses.
Device for 3 x 690 V
EUT ac
voltage [V]
EUT dc
voltage [V]
EUT Current [A]
Housing
coupling NX5 bs-3-480-16
3 x 480
na
16
19’’, 6 HU
coupling NX5 bs-3-480-32
3 x 480
na
32
19’’, 6 HU
coupling NX5 bs-3-480-63
3 x 480
na
63
rack 25 HU
coupling NX5 bs-3-480-125
3 x 480
na
125
rack 25 HU
coupling NX5 bs-3-480-63.1
3 x 480
na
0-32, 63
rack 34 HU
coupling NX5 bs-3-480-125.1
3 x 480
na
0-32, 63, 125
rack 34 HU
coupling NX5 bs-3-480-200.1
3 x 480
na
0-32, 63, 125, 200
rack 34 HU
Device for 3 x 690 V
EUT ac
voltage [V
EUT dc
voltage [V]
EUT Voltage [V]
EUT Current
[A]
coupling NX5 bs-3-690-16
3 x 690
na
16
19’’, 6 HU
coupling NX5 bs-3-690-32
3 x 690
na
32
19’’, 6 HU
coupling NX5 bs-3-690-63.1
3 x 690
na
0-32, 63
rack 34 HU
coupling NX5 bs-3-690-125.1
3 x 690
na
0-32, 63, 125
rack 34 HU
coupling NX5 bs-3-690-200.1
3 x 690
na
0-32, 63, 125, 200
rack 34 HU
Device for 3 x 690 V,
1000 Vdc
EUT ac
voltage [V
EUT dc
voltage [V]
EUT Voltage [V]
EUT Current
[A]
coupling NX5 bs-3-690-16
3 x 690
1000 V
16
rack 34 HU
coupling NX5 bs-3-690-32
3 x 690
1000 V
32
rack 34 HU
coupling NX5 bs-3-690-63.1
3 x 690
1000 V
0-32, 63
rack 34 HU
coupling NX5 bs-3-690-125.1
3 x 690
1000 V
0-32, 63, 125
rack 34 HU
coupling NX5 bs-3-690-200.1
3 x 690
1000 V
0-32, 63, 125, 200
rack 34 HU
4.2.
Special Coupling networks for IEC pulses
Coupling Network for Burst impulses
Device
Impulse voltage
Phases
EUT Voltage [V]
EUT Current [A]
coupling NX5 b-3-480-100
5 kV
3
3 x 480
100
It is forbidden to disconnect the plug in DC operation under voltage.
Risk of a stationary spark!

EM TEST coupling NX
Manual of operation V 1.03 15 / 53
5.
Operating Functions
5.1.
coupling NX5 bs-3-480-16 / 32
5.1.1.
Front view coupling NX5 bs-3-480-16 / 32
Figure 5.1: coupling NX front side ( model for 5kV/16 A / 32 A )
1Active LED
2Phenomenon (Burst, Ring Wave, Surge)
3Coupling indication LED
4Test Supply AC, DC and Over temperature
5"TEST ON”button
6EFT input from compact NX generator
7EFT output to capacitive coupling clamp
8EUT Output L1/DC+, L2, L3, N/DC-, PE
9GND reference for EFT verification
10 Output HV & COM to external Surge CDN
1 Active LED
Indicates that the impulse are actual served to this device. Enabled display indicates, that this device is actually not used from
the system.
2 Phenomenon
The LEDindicates the impulse phenomenon that is actually used for coupling. The coupling NX can handle the following
Phenomenon: Burst, Ring wave and Surge
3 Coupling Indication
Selected coupling and selected coupling output
4 EUT Application
- Selected EUT coupling path AC or DC if available
- Over-temperature indication, blinking recommend to switch off the TEST ON, constant waiting for cool down
5 Test ON
Switches on the internal mains contactor and allows to coupling of transient impulses to the lines
6 Burst input plug
Input plug (SHV type) for the EFT/Burst transient impulses from the Burst generator
7 Burst output plug
Output plug (SHV type) of the EFT/Burst transient impulses to a capacitive coupling clamp
8 EUT Output
Output plug to a3-phase EUT. For dc application L1 for positive and N for negative line are used.
9 GND reference for EFT verification
This plug is used for ground the PVF AD1 adapter during a Burst verification
10 Test ON
Surge output HV and COM for external CDN for data lines

EM TEST coupling NX
Manual of operation V 1.03 16 / 53
5.1.2.
Rear side coupling NX5 bs-3-480-16 / 32
Figure 5.2 : Rear side coupling NX
1Reference earth connection (Screw M4)
2EUT power L1 & dc+, L2, L3, N & dc-, PE
3Input HV & COM from NX generator
4Ventilator
5Power switch
6Mains connector and fuse (5 x 20 mm)
7 Sys Link
1 Reference earth connection
The generator has to be connected to the reference earth plane of the test set up. The connection at the rear
part of the generator is an alternative to the grounding point at the front panel
2 EUT supply Input L1, L2, L3, N, PE
Input plug for the EUT power supply (4mm safety banana plug up to 32A). The input is not fused.
- L1, L2, L3: Mains voltage to EUT phase L1 to L3
- N: Neutral to EUT supply
- PE: Protected earth to EUT supply
3 HV and COM output
The direct HV and COM input for surge impulses.
4 Ventilation
A power controlled ventilator is cooling the coupling NX5. During the most application the ventilator runs with
variable speed depends the cooling requirement.
After long term duration tests the coupling NX should keep on running for some minutes to cool down the
system.
5 Power on switch
The switch is part of the mains filter. Mains fuses are part of the filter. (230V / 2A and 115V / 4A)
6 Mains Input and Fuse
Mains input for the generator power supply.
Input voltage: 85 V –254 V ac
Fuses: 115 V: 2 A slow blow, 5 x 20 mm.
230 V: 2 A slow blow, 5 x 20 mm
7 Sys Link input
Sys link is the internal control bus to the connected compact NX devices. The sys link is a daisy chain wired bus
for connect the devices in series. The bus includes a 26 pole high density connectors.

EM TEST coupling NX
Manual of operation V 1.03 17 / 53
5.2.
Rack with built in coupling NX5-bs-480-125
5.2.1.
Front and rear view coupling NX5-bs-480-125
Figure 5.3: Test system with compact NX5, coupling NX5 (model for EUT 3 x 480V /125 A)
1Generator compact NX5
2Front coupling NX5-bs-3-480-125
3EUT output L1, L2, L3, N, PE; 6mm 
4Reference ground plate for table top EUT
5Power ON switch
6Ref GND plate for floor standing EUT
7Lock for open the rack
8Ref GND plate for floor standing EUT
1 Generator compact NX5
Generator compact NX5 for generate burst and surge impulses.
2 Front coupling NX5-bs-3-480-125
Indication LED and output plugs of the coupling NX5 bs-3-480-125. See the previous chapter 5.1.1. Front
view coupling NX5 bs-3-480-16 / 32 for explain all functions.
3 EUT output L1, L2, L3, N, PE; 6mm 
Input plug for the EUT power supply (6 mm safety banana plug up to 125A). The input is not fused.
- L1, L2, L3: Mains voltage to EUT phase L1 to L3
- N: Neutral to EUT supply
- PE: Protected earth to EUT supply
For more information concerning the connectors refer to the Annex in this manual
4 Reference ground plate for table top EUT
Reference ground plate for table top test equipment. Use a low inductance cupper foil or braid to connect the
reference ground of the table to the test rack.
5 Power ON switch
Main switch to power on the test system (equipment and the EUT supply).
For power ON the EUT press the Test ON button for release the supply to the EUT
6 Ref GND plate for floor standing EUT
Front side reference ground plate for floor standing test equipment. Use a low inductance cupper foil or braid to
connect the reference ground of the reference GND to the test rack.
7 Lock for open the rack
Rotate the two screws for open the rear of the rack.
8 Ref GND plate for floor standing EUT
Rear side reference ground plate for floor standing test equipment. Use a low inductance cupper foil or braid to
connect the reference ground of the reference GND to the test rack.

EM TEST coupling NX
Manual of operation V 1.03 18 / 53
5.2.2.
Connecting plate coupling NX5 bs-3-480-125 Rack
Figure 5.4: coupling NX font view (model for 5kV/100 A / 16 A)
1EUT AC supply input 3 x 400 V / 100A
2EUT supply input PF1 / N, PE; (300 V / 16 A)
3EUT supply input PF2 / N, PE; not used
4Sys Link out
5Sync IN
6Opto Link interface
7Control Out 0-10Vdc
8Ethernet interface
9Auxiliary output not used
10 System power input 100-240V
11 Emergency switch Slave
12 Emergency switch Master
1 EUT AC supply input 3 x 400 V / 63 A/ 100 A / 125 A
EUT mains supply via a CEE 100 A connector. This input EUT is internal not fused.
Connectors are rated with 63 A, 100 A or 125 A (color coded)
2 EUT supply input PF1, N, PE
EUT supply input of the compact NX5 generator to PF1, N and PE.
Plug: 4mm banana MC safety plug
EUT: 300 V / 16 A see manual compact NX5
3 EUT supply input PF2, N, PE
This input is not used.
4 Sys Link
Sys Link output to an external device
5 Sync IN
Input for external synchronization signal. (LOW / HIGH) max. 690 Vac. For more information refer to the
compact NX5 manual
6 Opto Link interface
Connector for external optical interface to the computer
7 Control Out 0-10Vdc
Output for control an external variable transformer
8 Ethernet interface
Ethernet interface to the remote computer
9 Auxiliary output
This BNC output is not used
10 System power Input and Fuse
Mains input connector to the Rack control devices, NX5 generator and coupling NX5 device.
Input voltage: 100 V –240 V ac
Fuses: 10 A slow blow, 5 x 20 mm.
11 Emergency switch Slave
Emergency switch, slave output for control an external device
12 Emergency switch Master
Input for the safety circuit master switch

EM TEST coupling NX
Manual of operation V 1.03 19 / 53
5.3.
Rack with built in Coupling NX5-bs-3-690-200.3
5.3.1.
Front and rear view coupling NX5-bs-3-690-200.3
1Generator compact NX5
2CDN coupling NX5 bs-3-690-200.x front
3EUT Output 200 A
4GND reference for table top EUT
5Main switch
6GND reference front floor standing EUT
7Wheel
8Screw for open rear cover
9Rear cover
10 Current range selector switch
11 Ventilation
12 EUT mains input AC / DC
13 Control plugs
14 GND reference rear floor standing EUT
1 Generator compact NX5
Generator with control panel for the complete system
2 CDN couplingNX5 bs-3-690-200.x front
Front panel for of the CDN with output to the EUT. The LED indicates the impulse phenomenon that is actually used for
coupling. The coupling NX can handle the following Phenomenon: Burst and Surge
3 EUT output
Output plugs 200 A to L1/DC+, L2, L3, N/DC-, PE. HV-COM is for external surge data line CDN
4 GND reference plate for table top EUT
The reference GND of table top must connected with a low inductive connection to this ground plate.
5 Main Switch
Main switches for the system supply(230V 50/50 Hz)
6/14 GND reference plate for floor standing equipment
On each front- and rear side is a GND reference plate for grounding the test system with the EUT ref GND plane and the
building GND. A low ohmic and inductive connection is required for this connection.
7 Wheel
Wheel with foot operated parking brake on front side wheels.
8/9 Screw for open the Rear Cover
For open the cover use a screw driver. Behind this are thecables and connections to thecompact NX5 generator.
10 Current range selector switch
EUT current range selector (32A, 63 A, 125 A, 200 A). The current must be changed only in no load and no voltage condition.
12 EUT mains input for AC/DC
Input for 3 x 690 V and 1000 VDC wit Multi Contact plugs.
13 Control plugs
Panel for control and system mains connectors.

EM TEST coupling NX
Manual of operation V 1.03 20 / 53
5.3.2.
Front and rear view coupling NX5 bs-3-690-200.x
Figure 5.3: Test system with compact NX5b, coupling NX5 (model for EUT 3 x 400V /100 A
1Active LED
2Phenomenon (Burst, Ring Wave, Surge)
3Coupling indication LED
4Test Supply AC, DC and Over temperature
5"TEST ON” button
6EFT input from compact NX generator
7EFT output to capacitive coupling clamp
8EUT Output L1/DC+, L2, L3, N/DC-, PE
9GND reference for EFT verification
10 Output HV & COM to external Surge CDN
1 Active LED
Indicates that the impulses are actual served to this device. Enabled display indicates, that this device is actually not used
from the system.
2 Phenomenon
The LEDindicates the impulse phenomenon that is actually used for coupling. The coupling NX can handle the following
Phenomenon: Burst, Ring wave and Surge
3 Coupling Indication
Selected coupling and selected coupling output
4 EUT Application
- Selected EUT coupling path AC or DC if available
- Over-temperature indication, blinking recommend to switch off the TEST ON, constant waiting for cool down
5 Test ON
Switches on the internal mains contactor and allows to coupling of transient impulses to the lines
6 Burst input plug
Input plug (SHV type) for the EFT/Burst transient impulses from the Burst generator
7 Burst output plug
Output plug (SHV type) of the EFT/Burst transient impulses to a capacitive couplingclamp
8 EUT Output
Output plug to a3-phase EUT. For dc application L1 for positive and N for negative line are used.
9 GND reference for EFT verification
This plug is used for ground the PVF AD1 adapter during a Burst verification
10 Test ON
Surge output HV and COM for external CDN for data lines