Koz Cable Clamps

KOZ CABLE CLAMPS //High quality, innovative, unique, strong, handy, and safe for all applications

• Designed to withstand high short-circuit currents • Flame extinguishing properties

• Wide range of chemical resistance • High UV resistance

C U T H B E R T S T E W A R T L I M I T E D

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STRONG, INNOVATIVE, SAFE, HANDY, UNIQUE //

Features and benefits:

• Glass-fibre reinforced polyamide provides large mechanical, heat and chemical resistance.

• Designed to withstand high short-circuit currents and therefore perfect for use at locations

where short-circuit-proof features are preferable.

• The balanced design of the products ensures even surface pressure on the cables.

• The flame extinguishing properties and high resistance to the effects of UV make the

products suitable for indoor and outdoor use.

• No mechanical loss of strength occurs within a temperature range of -40ºC to +135ºC. Fire

resistance follow Norm VDE 0304, Part 3, Class II A Glow Wire Tests follow Norm IEC 695-2-1

and Needle Flame Tests follow Norm IEC 695-2-2

• Besides having good electrical properties, the products are also resistant to a wide range of

chemicals, which makes them suitable for industrial applications.

• KOZ products are tested by KEMA Netherlands and, in the USA, by Underwriters Laboratories Inc.

KOZ Products bv is a company that specialises in the design, manufacture

and distribution of new, innovative and safety-enhancing products for the

electrotechnical installation sector. In 1998, KOZ introduced a range of new glass-

fibre reinforced polyamide clamps and blocks for fitting low-, medium- & high-

voltage cables. The range has grown steadily since then and the products are now

used throughout the world. KOZ products are always designed to meet the highest

possible requirements. KOZ Products bv also designs and manufactures products

for companies with special requirements for a particular product. Working in close

cooperation with these companies, KOZ develops a custom made end product.

The products are also distinguished from other brands by their high mechanical strength, besides their innovative features and

better safety aspects. Tests have shown that KOZ clamps and blocks have a mechanical strength of from 20,000 N to more than

40,000 N, depending on the type. This makes plastic KOZ products the toughest plastic cable clamps and blocks currently available

on the market. The unique safety features of KOZ products make the whole electrical installation safer. This and the attractive prices

are leading increasingly more companies to make the change and opt for the safety KOZ offers them.

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TESTING //

Unlike other similar products, all the various types of KOZ cable clamps and cable blocks have

been extensively tested in the United States by the world-renowned and famous testing institute

Underwriters Laboratories Inc. and, in the Netherlands, by KEMA Netherlands.

The tests, which were carried out in accordance with the latest standards, not only provided an

extremely precise impression of the exact strength of KOZ products but unlike the normal short-

circuit tests carried out by other manufacturers, they also showed after which forces give rise

to hairline cracks in the products. These hairline cracks can often only be seen using electron

microscopes but, obviously, a product with hairline cracks that are invisible to the naked eye has to

be considered unacceptable for medium- and high-voltage installations.

Underwriters Laboratories Inc. is responsible for the worldwide random control of

KOZ products. These controls are carried out at least 4 times a year on products taken straight

from the production line, to enable KOZ to continue to guarantee the high level of reliability. No

mechanical loss of strength occurs within a temperature range of -40ºC to +135ºC. The products have

a fire resistance follow Norm VDE 0304, Part 3, Class II A. Glow Wire Tests are been done follow Norm

IEC 695-2-1 and Needle Flame Tests follow Norm IEC 695-2-2. The KOZ products are then given the

highly coveted American and Canadian quality mark C-UL.

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KOZ STANDARD (ST) MOUNTING CLAMPS //

KOZ ST mounting clamps were designed especially to provide the best way of fitting low-, medium-

and high-voltage cables containing one or more conductors and can always be supplied in large

quantities from stock. KOZ ST mounting clamps are produced subject to the ISO 9001 standard

and undergo continuous inspection by the world renowned and independent American testing

institute Underwriters Laboratories Inc. KOZ ST mounting clamps are made of glass-fibre reinforced

polyamide and are among the strongest products of the kind available in the world.

The clamps are distinguished from all similar brands by their superior mechanical strength,

ongoing innovation and the fact that the ST series can also be fitted simply and quickly in a stacked

formation. The balanced design of KOZ ST mounting clamps ensures a very low surface pressure on

the cables. The products can be used indoors and outdoors and, because they are resistant to UV

radiation, ozone, corrosion, oils, salts, acids and radioactive radiation, etc. they can be widely used.

The clamps are tested by, amongst other organisations, KEMA Netherlands and also bear the C-UL

quality mark, which is recognised throughout the world.

KOZ ST mounting clamps can be supplied from stock with stainless steel fastening materials (in our

standard lengths). This means you get all the necessary fastening materials at once, at your chosen

workplace. KOZ ST mounting clamps are halogen free and are fully recyclable. The high safety level

of these KOZ products has been confirmed for many years at home and abroad.

Reference lists are available on request.

For the latest developments and information visit our Internet site www.kozproducts.com Click on

the link “Fixing Options”, to also see a short demonstration film of the installation of your chosen

KOZ product.

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SPECIFICATIONS KOZ ST CABLE MOUNTING CLAMPS //

Application Suitable for fitting single- and multiple-conductor low-

medium- and high-voltage cables

Range of sizes For cables with nominal outer diameters of 18 to 130 mm

Testing Tested by KEMA Netherlands and Underwriters Laboratories Inc.

No mechanical loss of strength occurs within a temperature

range of -40ºC to +135ºC. Fire resistance follow Norm VDE 0304,

Part 3, Class II A. Glow Wire Tests are been done follow Norm IEC

695-2-1 Needle Flame Tests follow Norm IEC 695-2-2

Mechanical strength In ascending sizes, type ST clamp, increasing from 20,000 N to

more than 40,000 N

Stacked fitted ST clamps of same size can easily be mounted on top of each other,

thanks to their top pieces.

Recommended

tightening moment of

the fastening material 5 Nm (also depends on cable manufacturer’s instructions)

Type The type indications of the ST clamps also indicate the normal cable

diameters that can be fittedin the clamps

Dimensions in millimetres

Type Dø L B I dø H h A Weight/Gram

KOZ ST 18-26 18-26 77 45 49 10,5 36-44 13,5 6 90

KOZ ST 26-38 26-38 92 60 60 12,5 48-60 21 10 170

KOZ ST 36-52 36-52 108 60 75 12,5 58-74 27 11 225

KOZ ST 50-75 50-75 128 60 95 12,5 76-101 35 14 310

KOZ ST 75-100 75-100 169 80 127 14,5 110-135 51 19 815

KOZ ST 100-130 100-130 200 80 158 14,5 141-170 65 20 1000

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SPECIFICATIONS KOZ STC CABLE MOUNTING CLAMPS //


Type Dø L B I dø H h A Weight/Gram

KOZ STC 21-38 21-38 92 60 60 12,5 54-70 26 18 174

KOZ STC 36-52 72-100 107 60 75 12,5 69-84 33 18 237

KOZ STC 46-75 46-75 128 60 95 12,5 79-109 35 20 298

KOZ STC 72-100 72-100 172 80 127 14,5 113-138 51 22.5 768

Application Suitable for fitting single- and multiple-conductor low- medium-

and high-voltage cable Range of sizes : for cables with nominal outer

diameters from 21 up to 100 mm

Testing Tested by KEMA Netherlands and Underwriters Laboratories Inc.

No mechanical loss of strength occurs within a temperature range of

-40°C to +135 °C. Fire resistance follow Norm VDE 0304, part 3, Class

II A. Glow Wire Tests are been done follow Norm IEC 695-2-1 and

needle flame Tests follow Norm IEC 695-2-2

Mechanical strength From 38.000 N. to more than 47.000 N.

Type The type indications of the KOZ STC clamps also indicate the

nominal cable diameters that can be fitted in the clamps.

Benefits The central fastening hole in the bottom part of the KOZ

STC clamps means they can be fastened with a bolt on

fitting rails as well as on a flat surface.

Recommended


the fastening material 5-8 Nm (also depends on cable manufacturer´s instructions)

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KOZ TRIANGLE (TRI) CABLE MOUNTING CLAMPS //

KOZ TRI mounting clamps were designed especially to provide the best way of fitting three single-

conductor, medium- and high-voltage cables in triangular arrays and can always be supplied in large

quantities from stock.

KOZ TRI mounting clamps are produced subject to the ISO 9001 standard and under-go continuous

inspection by the world renowned and independent American testing institute Underwriters

Laboratories Inc.

KOZ TRI mounting clamps are made of glass-fibre reinforced polyamide and are among the strongest

products of the kind available in the world. The clamps are distinguished from all similar brands by

their superior mechanical strength, ongoing innovation and the fact that the TRI series can also be

fitted simply and quickly in a stacked formation.

The balanced design of KOZ TRI mounting clamps ensures a very low surface pressure on the cables.

The clamps can be fitted quickly and, using the extra central fastening hole, they can easily be fitted

to walls, masts, etc. The products can be used indoors and outdoors and, because they are resistant

to UV radiation, ozone, corrosion, oils, salts, acids and radioactive radiation, etc. they can be widely

used. The clamps are tested by, amongst other organisations, KEMA Netherlands and also bear the

C-UL quality mark, which is recognised throughout the world.

KOZ TRI mounting clamps can be supplied from stock in our standard lengths with stainless steel

fastening materials. This means you get all the necessary fastening materials at once, at your chosen

workplace.

KOZ TRI mounting clamps are halogen free and are fully recyclable. The high safety level of these KOZ

products has been confirmed for many years at home and abroad. Reference lists are available on

request.

For the latest developments and information visit our Internet site:

www.kozproducts.com Click on the link “Fixing Options” there, to also see a short demonstration film

of the instilation of your chosen KOZ product.

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SPECIFICATIONS KOZ CABLE MOUNTING CLAMP TRI 3X 25-40 //

Application Suitable for fitting 3 single-conductor cables with high short-circuit load in triangular arrays


Testing Tested by KEMA Netherlands and Underwriters Laboratories Inc. No mechanical

loss of strength occurs within a temperature range of -40ºC to +135ºC. Fire

resistance follow Norm VDE 0304, Part 3, Class II A. Glow Wire Tests are been done

follow Norm IEC 695-2-1Needle Flame Tests follow Norm IEC 695-2-2

Mechanical strength 28,000 N

Type The type indication of the KOZ TRI also indicate the cable diameters that can

be fitted in the clamps. When the diameter of the cables is over 29 mm, the

detachable part has to be removed.

Fitting The central fastening hole in the bottom part of the KOZ TRI clamps means

they can be fastened to e.g. masts and poles, as well as to concrete and fitting rails

Recommended


the fastening material 5 - 8 Nm (also depends on cable manufacturer’s instructions)


Type Dø L B I dø H h A Z Weight/Gram

KOZ TRI 3x 25-40 25-40 172 80 125 14,5 80-108 46 30 16 835

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SPECIFICATIONS KOZ CABLE MOUNTING CLAMP TRI3X 38-53 //



Testing Tested by KEMA Netherlands and Underwriters Laboratories Inc. No mechanical loss of

strength occurs within a temperature range of -40ºC to +135ºC. Fire resistance follow

Norm VDE 0304, Part 3, Class II A. Glow Wire Tests are been done follow Norm IEC 695-2-1

Needle Flame Tests follow Norm IEC 695-2-2

Mechanical strenghth 34,000 N

Type The type indication of the KOZ TRI also indicate the cable diameters that can be fitted in the clamps

Fitting The central fastening hole in the bottom part of the KOZ TRI clamps means

they can be fastened to e.g. masts and poles, as well as to concrete and fitting rails.

Recommended





KOZ TRI 3x 38-53 38-53 190 80 145 14,5 85-115 54 30 25 880

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SPECIFICATIONS KOZ CABLE MOUNTING CLAMP TRI 3X 53-66 //



Testing Tested by KEMA Netherlands and Underwriters Laboratories Inc. No mechanical loss of

strength occurs within a temperature range of -40ºC to +135ºC. Fire resistance follow

Norm VDE 0304, Part 3, Class II A. Glow Wire Tests are been done follow Norm IEC 695-2-1

Needle Flame Tests follow Norm IEC 695-2-2 .

Mechanical strenghth 38,000 N

Type The type indication of the KOZ TRI also indicate the cable diameters that can be fitted in the clamps

Fitting The central fastening hole in the bottom part of the KOZ TRI clamps means they can

be fastened to e.g. masts and poles, as well as to concrete and fitting rails.

Recommended





KOZ TRI 3x 53-66 53-66 215 80 169 14,5 137-168 60 30 32 1300

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SPECIFICATIONS KOZ CABLE MOUNTING CLAMPS //TRI 3X 67-82 AND TRI 3X 82-98




loss of strength occurs within a temperature range of -40ºC to +135ºC. Fire

resistance follow Norm VDE 0304, Part 3, Class II A. Glow Wire Tests are been

done follow Norm IEC 695-2-1 Needle Flame Tests follow Norm IEC 695-2-2

Mechanical strength 42,000 N

Type The type indication of the KOZ Triangle also indicate the cable diameters

that can be fitted in the clamps

Fitting The central fastening hole in the bottom part of the KOZ Triangle clamps

means they can be fastened to e.g. masts and poles, as well as to concrete

and fitting rails

Recommended




Type D L B I d H h A Z Weight/Gram

KOZ TRI 3x 67-82 67-82 252 100 202 16,5 140-175 70 26 44 1840

KOZ TRI 3x 82-98 82-98 284 100 234 16,5 168-205 78 26 52 2515

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KOZ UNIVERSAL (UNI) CABLE MOUNTING BLOCKS //

KOZ UNI mounting blocks were designed especially to provide the best way of fitting low-, medium-

and high-voltage cables in multiples alongside and in layers above each other. The unique dovetail

concept means that KOZ UNI cable blocks can also be interconnected, which increases their flexibil-

ity and the number of ways in which

they can be used.

There is no longer any need to fit protective strips between the cables, thanks to the ingenious

design of KOZ UNI cable blocks. This makes fitting not only simpler but also a lot faster. KOZ UNI

mounting blocks can always be supplied in large quantities from stock. KOZ UNI mounting blocks

are produced subject to the ISO 9001 standard and undergo institute Underwriters Laboratories Inc.

Contrary to other brands, KOZ UNI mounting blocks are made of glass-fibre reinforced polyamide

and are amongst the strongest products of the kind available in the world. The blocks are distin-

guished from all similar products by their superior mechanical strength, ongoing innovation, wide

availability and extensive possibilities for combining them.

KOZ UNI mounting blocks can be supplied from stock with stainless steel fastening materials (in our

standard lengths). This means you get all the necessary fastening materials at once, at your chosen

workplace. KOZ UNI mounting blocks are halogen free and are fully recyclable. The high safety level

of these KOZ products has been confirmed for many years at home and abroad. Reference lists are

available on request.

For the latest developments and information visit our Internet site www.kozproducts.com Click on

the link

“Fixing options” there, to also see a short demonstration film of the installation of your chosen KOZ

product.

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SPECIFICATIONS KOZ UNI CABLE MOUNTING BLOCKS //

Application Suitable for fitting a number of single- and multipleconductor low-,

medium- and high-voltage cables alongside or in layers above each other



loss of strength occurs within a temperature range of -40ºC to +135ºC. Fire resistance

follow Norm VDE 0304, Part 3, Class II A. Glow Wire Tests are been done follow Norm

IEC 695-2-1 Needle Flame Tests follow Norm IEC 695-2-2

Mechanical strength In ascending sizes, type UNI blocks, increasing from 19,000 N to more than 27,000 N

Type The type indications of the UNI blocks also indicate the nominal cable diameters that

can be fitted in the blocks

Fitting The unique dovetail construction means the KOZ UNI blocks can be joined, thereby

increasing their flexibility and the number of ways in which they can be used

Recommended maximum




Type A B C D E F G H I Weight/Gram

UNI 3x 3-32 1 86,5 32,25 60,5 62,75 60,5 10,5 43,0 45,0 61,0 145

UNI 4x 13-32 246,5 32,25 60,5 62,75 60,5 10,5 43,0 45,0 61,0 205

UNI 4x 30-47 345,0 44,5 85,0 87,5 85,0 13,0 65,0 50,0 66,0 375

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KOZ MOULDED RECYCLED MOUNTING BLOCKS //

KOZ recycled mounting blocks are designed especially to your specifications, to provide the best

way of fitting low-, medium- and high-voltage cables in multiples alongside and in layers above

each other. The high (moulded) density of our material means no air will enter, as occurs with other

brands of products made from recycled materials. The implemented standardisation of the basic

material makes it possible to start production quickly, to enable your products to be supplied within

an acceptable period.

The blocks are distinguished from similar recycled products by their higher constant quality, their

superior mechanical strength when compared with other injectionmoulded, recycled material and

the large range of product types and sizes that can be produced.

The balanced range of sizes of KOZ’s recommended moulded, recycled mounting blocks ensures that

cables will be subject to very little surface pressure. The products can be used widely both indoors

and outdoors.

KOZ moulded, recycled mounting blocks can be provided with a recess for washers and nuts.

Stainless steel fastening material can be supplied from stock in our standard lengths. This means

you receive all the necessary materials at once, at your chosen workplace. KOZ moulded, recycled

mounting blocks are off course fully recyclable.

They can be produced in practically any desired cable configuration.

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KOZ WOODEN CABLE MOUNTING BLOCKS //

KOZ wooden cable mounting blocks are made under KOZ’s own management from steamed beech

wood. The wood is subject to continuous visual inspection to guarantee a high-quality finished

product. Steamed beech wood is more resistant to internal tension, which means it is more stable

than other types of wood.

This high-quality wood is excellent for use without applying any finish but can also be provided with

a high-quality UV-resistant coating on request. The wood is steamed after sawing. In this treatment,

every 100 m3 of the wood is placed on support bars and then steam treated for 12 to 36 hours. This

artificially ages the wood and draws out all the sap.

There are differences in the quality of beech wood, which are expressed in the wood’s specific

gravity per m3. The specific gravity of the beech wood KOZ uses, which is on average 740 kg/m3 at

20% humidity, means the best quality is used. This results in stronger finished products than other

products that may look the same but which are made of lower quality beech wood.

Production usually takes place using CNC operated machines. Each cable mounting block is visually

inspected before, during and after production to guarantee a high-quality finished product. KOZ

wooden cable mounting blocks are always produced to your specifications and with a short delivery

period. The blocks enclose the cables evenly, with the right surface pressure to prevent damage to

the cables.

If required, KOZ wooden mounting blocks can be provided with a recess for washers and nuts.

Stainless steel fastening material can be supplied from stock in our standard lengths. This means you

receive all the necessary materials at once, at your chosen workplace.

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KOZ distinguishes itself from competitors also because the company actively thinks through

solutions to (complicated) problems that may occur in practice. KOZ’s efficient operational

management and know-how mean the company can often come up with practical solutions in a

very short time. KOZ not only develops products made of various types of plastics but also designs

and manufactures products made of different kinds of metals. For example, KOZ designed special

brackets for a project that enabled KOZ products to be fitted to existing galvanized cable ladders,

where, for various reasons, no holes could be drilled. KOZ also designs, manufactures and produces

plastic products for OEM users, for example.

Working in close cooperation with clients, KOZ makes innovative proposals and product drawings,

which can be further developed into finished products once they have been approved.

KOZ can also be brought in to attend to the protection of the (model) rights. KOZ’s services therefore

include not only supplying the company’s own range of products but also include supplying total

solutions for your actual situation, where possible.

OTHER PRODUCTS MADE TO CUSTOMER SPECIFICATIONS //

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+64 4 568 6156 • [email protected]

PO Box 38 496 Wellington Mail Centre, Wellington

Koz Cable Clamps

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