Eleq TQ30, TQ40-B, TQ40-C, TQ50-E, TQ50-L User guide

TQ Split-Core Current Transformer

Installation Guide

TQ30 (4M3Qxx)
TQ30 (4Q3Bxx)
TQ40-B (4Q4Bxx)
TQ40-C (4Q4Cxx)
TQ50-E (4Q5Rxx, 4Q5Exx)
TQ50-L (4Q5Mxx, 4Q5Lxx)

Read this installation guide before installing the product

TQ Split-Core Current Transformer

Installation Guide

TQ30 (4M3Qxx)
TQ30 (4Q3Bxx)
TQ40-B (4Q4Bxx)
TQ40-C (4Q4Cxx)
TQ50-E (4Q5Exx)
TQ50-L (4Q5Lxx)

Read this installation guide before installing the product

document.

This product is designed according to the
EN-IEC 61010-2-032:2012 standards and therefore
this product meets the requirements of the Low
Voltage Directive 2006/95/EC.

Do not apply around or remove from UNINSULATED
HAZ

ARDOUS LIVE conductors, which m ay render

electric shock, electric burn, or arc flash.

Read the installation guide before mounting the
product. Unprofessional work activities on electrical
installations may result in a threat of danger to the life
and health of human beings and livestock!

Under no circumstances the secondary circuit of t he
CT may be opened when the CT is closed and
current is flowing in the primary

circuit. High voltages
may appear on the secondary leads when this circuit
is left open.

R

oHS Directive 2011/65/EU

ELEQ states that they only uses qualified components
in their products from manufacturers, whose
specifications meet or exceed the requirements of the
European Directive for the Restriction of use of
certain Hazardous Substances.

WEEE Directive 2012/19/EU

The 'crossed out wheeled bin' sym

bol indicate

s that

the equipment should not be disposed as

unsorted

municipal w

aste. Contact a qualified recycler for

disposal.

TQ Split-Core Current Transformer

Installation Guide

TQ30 (4M3Qxx)
TQ30 (4Q3Bxx)
TQ40-B (4Q4Bxx)
TQ40-C (4Q4Cxx)
TQ50-E (4Q5Exx)
TQ50-L (4Q5Lxx)

Read this installation guide before installing the product

ELEQ b.v.

Tukseweg 130, 8331 LH Steenwijk
The Netherlands

[phone]
[phone]

[e-mail]
www.eleq.com

TQ Split-Core Current Transformer

Installation Guide

TQ30 (4M3Qxx)
TQ30 (4Q3Bxx)
TQ40-B (4Q4Bxx)
TQ40-C (4Q4Cxx)
TQ50-E (4Q5Rxx, 4Q5Exx)
TQ50-L (4Q5Mxx, 4Q5Lxx)

Read this installation guide before installing the product

Safety instruction

All activities for installation, commissioning and maintenance
of this current transformer must be performed by qualified
personnel that have the knowledge of applicable safety
precautions. This guide assumes that the reader of this
document has sufficient electro-technical knowledge to
understand the content of this

document.

General

The TQ split-core is a current transformer (CT) and can only
be used for measuring electrical alternating currents. The TQ
is suitable only for mounting on insulated primary conductors
in a weather protected and dry location.

Explanation of symbols

This product is designed according to the
EN-IEC 61010-2-032:2012 standards and therefore
this product meets the requirements of the Low
Voltage Directive 2006/95/EC.

Do not apply around or remove from UNINSULATED
HAZ

ARDOUS LIVE conductors, which m ay render

electric shock, electric burn, or arc flash.

Read the installation guide before mounting the
product. Unprofessional work activities on electrical
installations may result in a threat of danger to the life
and health of human beings and livestock!

Under no circumstances the secondary circuit of t he
CT may be opened when the CT is closed and
current is flowing in the primary

circuit. High voltages
may appear on the secondary leads when this circuit
is left open.

R

oHS Directive 2011/65/EU

ELEQ states that they only uses qualified components
in their products from manufacturers, whose
specifications meet or exceed the requirements of the
European Directive for the Restriction of use of
certain Hazardous Substances.

WEEE Directive 2012/19/EU

The 'crossed out wheeled bin' symbol indicate

s that
the equipment should not be disposed as unsorted
municipal waste. Contact a qualified recycler for
disposal.

TQ Split-Core Current Transformer

Installation Guide

TQ30 (4M3Qxx)
TQ30 (4Q3Bxx)
TQ40-B (4Q4Bxx)
TQ40-C (4Q4Cxx)
TQ50-E (4Q5Exx)
TQ50-L (4Q5Lxx)

Read this installation guide before installing the product

ELEQ b.v.

Tukseweg 130, 8331 LH Steenwijk
The Netherlands

[phone]
[phone]

[e-mail]
www.eleq.com

83564 / EN1311

Technical Specifications

Safety instruction

All activities for installation, commissioning and maintenance
of this current transformer must be performed by qualified
personnel that have the knowledge of applicable safety
precautions. This guide assumes that the reader of this
document has sufficient electro-technical knowledge to

understand the content of this

document.

General

The TQ split-core is a current transformer (CT) and can only
be used for measuring electrical alternating currents. The TQ
is suitable only for mounting on insulated primary conductors
in a weather protected and dry location.

Explanation of symbols

This product is designed according to the
EN-IEC 61010-2-032:2012 standards and therefore
this product meets the requirements of the Low
Voltage Directive 2006/95/EC.

Do not apply around or remove from UNINSULATED
HAZ

ARDOUS LIVE conductors, which m ay render

electric shock, electric burn, or arc flash.

Read the installation guide before mounting the
product. Unprofessional work activities on electrical
installations may result in a threat of danger to the life
and health of human beings and livestock!

Under no circumstances the secondary circuit of t he
CT may be opened when the CT is closed and
current is flowing in the primary

circuit. High voltages
may appear on the secondary leads when this circuit
is left open.

R

oHS Directive 2011/65/EU

ELEQ states that they only uses qualified components
in their products from manufacturers, whose
specifications meet or exceed the requirements of the
European Directive for the Restriction of use of
certain Hazardous Substances.

WEEE Directive 2012/19/EU

The 'crossed out wheeled bin' sym

bol indicate

s that

the equipment should not be disposed as

unsorted

municipal w

aste. Contact a qualified recycler for

disposal.

TQ Split-Core Current Transformer

Installation Guide

TQ30 (4M3Qxx)
TQ30 (4Q3Bxx)
TQ40-B (4Q4Bxx)
TQ40-C (4Q4Cxx)
TQ50-E (4Q5Exx)
TQ50-L (4Q5Lxx)

Read this installation guide before installing the product

Safety and environmental conditions

CE marking

Standard

This product is designed to be safe under the following
conditions:

Location
Altitude
Ambient temperature
Storage temperature
Relative humidity
Pollution degree
Degree of protection

The TQ is only suitable for insulated primary conductors.

Specifications

Standard
Rated short-time thermal current (Ith)
Rated dynamic current (Idyn)
Rated continuous thermal current (Icth)
Rated insulation level
Rated frequency
Class of insulation
Material (housing)

Specifications per type

TQ30 TQ40-B TQ40-C TQ50-E TQ50-L
Suitable for

ø

cable
../1A

Secondary
leads length
for 0,5mm
Approximate
weight
../5A
Secondary
leads format
Approximate
weight

ELEQ reserves the right to carry out m odifications on its products, in
order to improve them, without prior notice.

18mm

2

/

/ 300g 250g 650g 850g

LV directive 2006/95/EC
RoHS directive 2011/65/EU
EN 61010-2-032:2012
WEEE directive 2012/19/EU

Indoor use
Up to 2000m

-10°C .. +55°C

-20°C .. +70°C
5% .. 85%, non condensing
2
IP20

100%
0,72/3/-kV
50/60Hz
E (120°C)
PA 6.6, UL94: V2

ø

18mm ø28mm

3m 3m 5m 5m 3m

360g 310g 525g 725g 200g

0,5 meter

0,5 meter

ø

1,5mm

IEC 61869-2:2012
60 x Ipr / 1s
2,5 x Ith

42mm

ø

3 meter

1,5mm

ø

1,5mm

ø

Safety instruction

All activities for installation, commissioning and maintenance
of this current transformer must be performed by qualified
personnel that have the knowledge of applicable safety
precautions. This guide assumes that the reader of this
document has sufficient electro-technical knowledge to
understand the content of this

General

The TQ split-core is a current transformer (CT) and can only
be used for measuring electrical alternating currents. The TQ
is suitable only for mounting on insulated primary conductors
in a weather protected and dry location.

Explanation of symbols

2x

ø

42mm

3 meter

ø

1,5mm

ELEQ b.v.

Tukseweg 130, 8331 LH Steenwijk
The Netherlands

This product is designed according to the
EN-IEC 61010-2-032:2012 standards and therefore
this product meets the requirements of the Low
Voltage Directive 2006/95/EC.

Do not apply around or remove from UNINSULATED
HAZ

ARDOUS LIVE conductors, which m ay render

electric shock, electric burn, or arc flash.

Read the installation guide before mounting the
product. Unprofessional work activities on electrical
installations may result in a threat of danger to the life
and health of human beings and livestock!

Under no circumstances the secondary circuit of t he
CT may be opened when the CT is closed and
current is flowing in the primary
may appear on the secondary leads when this circuit
is left open.

R

oHS Directive 2011/65/EU

ELEQ states that they only uses qualified components
in their products from manufacturers, whose
specifications meet or exceed the requirements of the
European Directive for the Restriction of use of
certain Hazardous Substances.

WEEE Directive 2012/19/EU

The 'crossed out wheeled bin' symbol indicate
the equipment should not be disposed as unsorted
municipal waste. Contact a qualified recycler for
disposal.

document.

[phone]
[phone]

circuit. High voltages

[e-mail]
www.eleq.com

83564 / EN1501

TQ Split-Core Current Transformer

Installation Guide

TQ30 (4M3Qxx)
TQ30 (4Q3Bxx)
TQ40-B (4Q4Bxx)
TQ40-C (4Q4Cxx)
TQ50-E (4Q5Rxx, 4Q5Exx)
TQ50-L (4Q5Mxx, 4Q5Lxx)

s that

Read this installation guide before installing the product

ELEQ b.v.

Tukseweg 130, 8331 LH Steenwijk
The Netherlands

[phone]
[phone]

[e-mail]
www.eleq.com

correctly, please consult the installation guide of the meter.

4.

Connect the secondary leads (S1, S2) to the low
impedance current input of the measurement instrument

(e.g., an ammeter or current input of kWh-meter).

5. Close the CT only when you are sure that the secondary

leads are connected to the current input of the
measurement instrument. The CT is properly closed when
you hear a

‘click’.

6.

Enable the primary circuit if necessary.

• Check if the CT is closed properly.

• Check the value of the secondary burden (secondary leads

length/diameter and meter impendent). See product/data
sheet for the maximum burden value.

• If previous points did not solve the problem:

Check carefully whether there is dust or other pollution
present between the two parts of the core.
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth and then protected with an extremely
thin layer of acid free petroleum jelly (Vaseline).

Attention

4.

Connect the seconda

ry leads (S1, S2) to the low

impedance current input of the measurement instrument
(e.g., an ammeter or current input of kWh-meter).

5. Close the CT only when you are sure that the secondary

leads are con

nected to the current input of the

measurement instrument. The CT is properly closed when
you hear a

‘click’.

6.

Enable the primary circuit if necessary.

• Check if the CT is closed properly.

• Check the value of the secondary burden (secondary leads

length/diameter and meter impendent). See product/data
sheet for the maximum burden value.

• If previous points did not solve the problem:

Check carefully whether there is dust or other pollution
present between the two parts of the core.
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth and then protected with an extremely
thin layer of acid free petroleum jelly (Vaseline).

Attention

• Check if the CT is closed properly.

• Check the value of the secondary bu

rden (secondary leads

length/diameter and meter impenden

t). See product/data

sheet for the maximum burden value.

•

If previous points did not solve the problem:

Check carefully whether there is dust or othe

r pollution

present between the two pa

rts of the core.

In case there is pollution, the core surfaces can be cleaned
with a lint free cloth an

d then protected with an extremely

thin layer of acid free petroleum jelly (Vaseline).

Attention

Connect the secondary leads (S1, S2) to the low
impedance current input of the measurement instrument
(e.g., an ammeter or current input of kWh-meter).

leads are connected to the current input of the
measurement instrument. The CT is properly closed when
you hear a

‘click’.

Enable the primary circuit if necessary.

Check if the secondary leads are connected properly and
firmly.

../1A

Brown lead: S1
Blue lead: S2

../5A
Black lead: S1
Red lead: S2

Check whether the CT is mounted firmly.

moisture, especially wit h the core, must be avoided.

nexpected or incorrect values, reversed power

guide of the meter.

Check whether the CT is mounted on the intended cable in
the right direction.

• Check if the CT is closed properly.

• Check the value of the secondary burden (secondary leads

length/diameter and meter impendent). See product/data
sheet for the maximum burden value.

• If previous points did not solve the problem:

Check carefully whether there is dust or other pollution
present between the two parts of the core.
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth and then protected with an extremely
thin layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when reversing
the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe working area during disassembling the CT.
If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to damage the

insulation of the primary conductor when removing the
cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

Recycling

When the product has reached ‘end of life’, it must be
recycled. Do not dispose this product as unsorted municipal
waste. Contact a qualified recycler for disposal.

ry leads (S1, S2) to the low

nected to the current input of the

d: S2

: S1

Red lead: S2

ng. Contact with

• Check if the CT is closed properly.

• Check the value of the secondary burden (secondary leads

length/diameter and meter impendent). See product/data
sheet for the maximum burden value.

• If previous points did not solve the problem:

Check carefully whether there is dust or other pollution
present between the two parts of the core.
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth and then protected with an extremely
thin layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when reversing
the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe working area during disassembling the CT.
If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to damage the

insulation of the primary conductor when removing the
cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

Recycling

When the product has reached ‘end of life’, it must be
recycled. Do not dispose this product as unsorted municipal
waste. Contact a qualified recycler for disposal.

• Check if the CT is closed properly.

• Check the value of the secondary bu

rden (secondary leads

length/diameter and meter impenden

t). See product/data

sheet for the maximum burden value.

•

If previous points did not solve the problem:

Check carefully whether there is dust or othe

r pollution

present between the two pa

rts of the core.

In case there is pollution, the core surfaces can be cleaned
with a lint free cloth an

d then protected with an extremely

thin layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when

reversing

the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe worki

ng area during disassembling the CT.

If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to da

mage the

insulation of the primary conductor when

removing the

cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

Recycling

When the product has reached ‘end of life’

, it must be

recycled. Do not dispose this product as unsorted municipal
waste. Contact a qualified recycler for disposal.

Ensure a safe working area during disassembling the CT.
If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

Disconnect the secondary leads from the measurement
instrument.

insulation of the primary conductor when removing the
cable ties. Remove the CT.

Enable the primary circuit if necessary.

• Check if the CT is closed properly.

• Check the value of the secondary burden (secondary leads

length/diameter and meter impendent). See product/data
sheet for the maximum burden value.

• If previous points did not solve the problem:

Check carefully whether there is dust or other pollution
present between the two parts of the core.
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth and then protected with an extremely
thin layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when reversing
the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe working area during disassembling the CT.
If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to damage the

insulation of the primary conductor when removing the
cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

Recycling

When the product has reached ‘end of life’, it must be
recycled. Do not dispose this product as unsorted municipal
waste. Contact a qualified recycler for disposal.

rden (secondary leads

t). See product/data

If previous points did not solve the problem:

r pollution

rts of the core.

d then protected with an extremely

reversing

ng area during disassembling the CT.

mage the

removing the

, it must be

Always avoid working on live parts of an installation.

Mounting instruction

No special tools are required to install a current transformer
(CT) of the TQ series. To connect the CT to the meter
correctly, please consult the installation guide of the meter.

Assembl y

Under no circumstances the secondary circuit of the CT may
be opened when the CT is closed and the current is flowing in
the primary circuit. High voltages may appear on the
secondary leads when this circuit is left open.

1. Ensure a safe working area during assembly,

maintenance and inspection of the CT. If necessary,
disconnect the power of the primary circuit and make sure
it can not be enabled unintentionally.

2.

Find the power direction of the cable you want to
measure. It is recommended to mount the P1 side to
power source and the P2 side to power consumer. If the
CT is installed like this, the arrow on the CT will indicate
the directio n of the power flow.

3.

Open the CT and mount it on the cable by using cable
ties. Attention: Do not close the CT. Otherwise high
voltages may appear on the open secondary leads!

4.

Connect the secondary leads (S1, S2) to the low
impedance current input of the measurement instrument
(e.g., an ammeter or current input of kWh-meter).

5. Close the CT only when you are sure that the secondary

leads are connected to the current input of the
measurement instrument. The CT is properly closed when
you hear a

‘click’.

6.

Enable the primary circuit if necessary.

7. Check if the CT is mounted and closed properly.

Check if the secondary leads are connected properly and
firmly.

Wiring Diagram

../1A

Brown lead: S1
Blue lead: S2

../5A
Black lead: S1
Red lead: S2

Maintenance and inspection

• Check whether the secondary leads are connected firmly.

• Check whether the CT is closed properly.

•

Check whether the CT is mounted firmly.

• Remove severe pollution on the casing. Contact with

moisture, especially wit h the core, must be avoided.

Attention

Do not touch the core surfaces by hand: skin acid may
damage the core.

Temporarily disconnecting the CT

The secondary leads of the CT always have to be connected
to a low impedance burden such as an ammeter. When,
during maintenance, no burden is available to connect to, the

• Check if the CT is closed properly.

• Check the value of the secondary burden (secondary leads

length/diameter and meter impendent). See product/data
sheet for the maximum burden value.

• If previous points did not solve the problem:

Check carefully whether there is dust or other pollution
present between the two parts of the core.
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth and then protected with an extremely
thin layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when reversing
the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe working area during disassembling the CT.
If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to damage the

insulation of the primary conductor when removing the
cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

4.

Connect the seconda

ry leads (S1, S2) to the low

impedance current input of the measurement instrument
(e.g., an ammeter or current input of kWh-meter).

5. Close the CT only when you are sure that the secondary

leads are con

nected to the current input of the

measurement instrument. The CT is properly closed when
you hear a

‘click’.

6.

Enable the primary circuit if necessary.

7. Check if the CT is mounted and closed properly.

Check if the secondary leads are connected properly and
firmly.

Wiring Diagram

../1A

Brown lead: S1
Blue lea

d: S2

../5A
Black lead

: S1

Red lead: S2

Maintenance and inspection

• Check whether the secondary leads are connected firmly.

• Check whether the CT is closed properly.

•

Check whether the CT is mounted firmly.

• Remove severe pollution on the casi

ng. Contact with

moisture, especially wit h the core, must be avoided.

Attention

Do not touch the core surfaces by hand: skin acid may
damage the core.

Temporarily disconnecting the CT

The secondary leads of the CT always have to be connected
to a low impedance burden such as an ammeter. When,
during maintenance, no burden is available to connect to, the

• Check if the CT is closed properly.

• Check the value of the secondary burden (secondary leads

length/diameter and meter impendent). See product/data
sheet for the maximum burden value.

• If previous points did not solve the problem:

Check carefully whether there is dust or other pollution
present between the two parts of the core.
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth and then protected with an extremely
thin layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when reversing
the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe working area during disassembling the CT.
If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to damage the

insulation of the primary conductor when removing the
cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

• Check if the CT is closed properly.

• Check the value of the secondary bu

rden (secondary leads

length/diameter and meter impenden

t). See product/data

sheet for the maximum burden value.

•

If previous points did not solve the problem:

Check carefully whether there is dust or othe

r pollution

present between the two pa

rts of the core.

In case there is pollution, the core surfaces can be cleaned
with a lint free cloth an

d then protected with an extremely

thin layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when

reversing

the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe worki

ng area during disassembling the CT.

If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to da

mage the

insulation of the primary conductor when

removing the

cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

Always avoid working on live parts of an installation.

Mounting instruction

No special tools are required to install a current transformer
(CT) of the TQ series. To connect the CT to the meter

Attention

Do not touch the core surfaces by hand: skin acid may damage
the core. Avoid dust on the core surfaces.

For mounting the TQ50

For the TQ50-E and the TQ50-L the top-part of the transformer
can be removed entirely, which makes it even more easy to
install the transformer. Attention: Make sure both transformer
parts stick together when you seperate both parts. When you
mix transformer parts up the measurement class can not be
guaranteed.

Connect the seconda

4.

impedance current input of the measurement instrument
(e.g., an ammeter or current input of kWh-meter).

5. Close the CT only when you are sure that the secondary

leads are con
measurement instrument. The CT is properly closed when

6.

7. Check if the CT is mounted and closed properly.

Wiring Diagram

Maintenance and inspection

• Check whether the secondary leads are connected firmly.

• Check whether the CT is closed properly.

Check whether the CT is mounted firmly.

•

• Remove severe pollution on the casi

moisture, especially wit h the core, must be avoided.

Attention

Do not touch the core surfaces by hand: skin acid may
damage the core.

Temporarily disconnecting the CT

The secondary leads of the CT always have to be connected
to a low impedance burden such as an ammeter. When,
during maintenance, no burden is available to connect to, the
secondary leads of the CT (the two secondary terminals)
must be short-circuited.

Problem solving

e.g. u

• Check the settings of the meter by using the installation

guide of the meter.

Check whether the CT is mounted on the intended cable in

•

the right direction.

‘click’.

you hear a

Enable the primary circuit if necessary.

Check if the secondary leads are connected properly and
firmly.

nexpected or incorrect values, reversed power

../1A

Brown lead: S1
Blue lea

../5A
Black lead

• Check if the CT is closed properly.

• Check the value of the secondary bu

length/diameter and meter impenden
sheet for the maximum burden value.

•

Check carefully whether there is dust or othe
present between the two pa
In case there is pollution, the core surfaces can be cleaned
with a lint free cloth an
thin

layer of acid free petroleum jelly (Vaseline).

Attention

Always follow the disassembly instructions when
the CT.

Disassembly instruction

Tools are only required for removing the cable ties of the CT.

1.

Ensure a safe worki
If necessary, disconnect the power of the primary circuit
and make sure it can not be enabled unintentionally.

2. Open the CT.

3.

Disconnect the secondary leads from the measurement
instrument.

4. Remove the cable ties. Pay attention not to da

insulation of the primary conductor when
cable ties. Remove the CT.

5.

Enable the primary circuit if necessary.

Recycling

When the product has reached ‘end of life’
recycled. Do not dispose this product as unsorted municipal
waste. Contact a qualified recycler for disposal.