Cat 6 SWA Cable for Mechanically Protected Gigabit Ethernet Networks

Cat 6 SWA Cable combines Category 6 Ethernet transmission with Steel Wire Armor for industrial, infrastructure and physically demanding network routes. ETK Kablo currently manufactures Steel Wire Armored Cat 6 cables in U/UTP, F/UTP and SF/UTP architectures, allowing project engineers to specify electromagnetic screening and mechanical protection separately.

The current ETK Kablo Cat 6 SWA range uses 23 AWG solid copper conductors and provides Category 6 transmission performance through 250 MHz. Each published construction includes a halogen-free inner jacket, steel wire armor and a halogen-free outer jacket. Depending on the selected product, the Ethernet core can remain electrically unshielded or include overall foil and copper-braid screening.

Steel Wire Armor performs a mechanical function. It should not be confused with the Al/PET foil or tinned copper braid used for electromagnetic screening. This distinction is particularly important when specifying industrial Ethernet cable because metallic components within the same cable can perform completely different engineering roles.

What Is a Cat 6 SWA Cable?

A Cat 6 SWA cable is a Category 6 balanced copper Ethernet cable with Steel Wire Armor around the inner-jacketed data-cable core.

The armor adds mechanical protection for fixed network routes where conventional structured cabling can face greater physical exposure.

The underlying Ethernet core retains Category 6 transmission performance through 250 MHz. Therefore, adding SWA changes the mechanical construction without changing the cable into another Ethernet category.

What Does SWA Mean?

SWA means Steel Wire Armor.

ETK Kablo places the steel armor outside the halogen-free inner jacket and then applies a halogen-free outer jacket around the complete construction.

The SWA layer primarily addresses mechanical protection. It does not determine whether the Ethernet core is electromagnetically screened.

A complete specification should therefore define both:

• The Ethernet architecture: U/UTP, F/UTP or SF/UTP
• The mechanical construction: Steel Wire Armor (SWA)

ETK Kablo Cat 6 SWA Cable Range

Current Product	Ethernet Screening	Mechanical Protection
Cat 6 U/UTP LSOH SWA LSOH	No dedicated metallic data screen	Steel Wire Armor
Cat 6 F/UTP LSOH SWA LSOH	Overall Al/PET foil	Steel Wire Armor
Cat 6 SF/UTP LSOH SWA LSOH	Overall Al/PET foil + tinned copper braid	Steel Wire Armor

The current published range therefore provides three different electromagnetic-screening architectures with the same basic SWA mechanical-protection concept.

Cat 6 SWA Cable Construction

The exact internal construction changes according to the selected Ethernet screening architecture. However, all three current Cat 6 SWA products share the following core design elements:

• 23 AWG solid copper conductors
• Solid polyethylene insulation
• Four twisted pairs
• Star-shaped separator
• Halogen-free inner jacket
• Steel wire armor
• Halogen-free outer jacket

The F/UTP and SF/UTP versions add electromagnetic-screening components inside the inner jacket.

23 AWG Solid Copper Cat 6 SWA Cable

The current ETK Kablo Cat 6 SWA datasheets specify 23 AWG solid copper conductors for U/UTP, F/UTP and SF/UTP constructions.

Solid copper provides predictable conductor resistance and stable electrical characteristics for fixed Ethernet installations.

The current technical documentation publishes a maximum conductor resistance of 94 Ω/km at 20°C.

Professional buyers should distinguish solid-copper data cable from copper-clad conductor alternatives when network performance, Power over Ethernet and project compliance are important.

Star-Shaped Pair Separator

The current Cat 6 SWA products use a star-shaped separator between the four twisted pairs.

The separator helps maintain physical separation between the pairs and supports the crosstalk performance required by the Category 6 transmission architecture.

This component belongs to the Ethernet core and remains separate from both the electromagnetic screens and the outer steel armor.

Steel Wire Armor for Mechanical Protection

Steel wire armor surrounds the inner-jacketed Category 6 cable core.

This layer adds mechanical protection for fixed network routes where the cable can face increased physical exposure.

Potential applications include industrial facilities, infrastructure pathways, technical areas, cable trays and other fixed routes that require more mechanical protection than conventional LAN cable.

However, SWA should not automatically be interpreted as qualification for every underground, direct-burial, submerged, chemical or dynamic application. Those requirements should be evaluated separately.

SWA Is Not the Same as Ethernet Shielding

Steel Wire Armor and electromagnetic shielding solve different engineering problems.

Component	Main Function
Al/PET foil	Electromagnetic screening
Tinned copper braid	Electromagnetic screening
Tinned copper earthing wire	Supports screen continuity and termination
Steel Wire Armor	Mechanical protection

A cable can therefore be mechanically armored while the Ethernet core remains electrically unshielded.

Conversely, an electrically shielded Cat 6 cable can contain foil or copper braid without any steel mechanical armor.

Cat 6 U/UTP SWA Cable

Cat 6 U/UTP SWA Cable combines an electrically unshielded Category 6 core with Steel Wire Armor mechanical protection.

The current ETK Kablo construction includes:

• 23 AWG solid copper conductors
• Solid polyethylene insulation
• Four twisted pairs
• Star-shaped separator
• Halogen-free inner jacket
• Steel wire armor
• Halogen-free outer jacket

No dedicated Al/PET foil or tinned copper electromagnetic braid surrounds the Ethernet pairs.

This construction clearly demonstrates that the presence of steel armor does not automatically make an Ethernet cable electrically shielded.

Cat 6 F/UTP SWA Cable

Cat 6 F/UTP SWA Cable combines an overall foil-screened Category 6 core with Steel Wire Armor.

The current construction includes:

• 23 AWG solid copper conductors
• Solid polyethylene insulation
• Four twisted pairs
• Star-shaped separator
• Tinned copper earthing wire
• Overall Al/PET foil
• Halogen-free inner jacket
• Steel wire armor
• Halogen-free outer jacket

The Al/PET foil addresses electromagnetic interference, while the steel armor provides independent mechanical protection.

The individual twisted pairs remain unshielded in an F/UTP construction.

Cat 6 SF/UTP SWA Cable

Cat 6 SF/UTP SWA Cable combines overall foil and tinned-copper-braid electromagnetic screening with a separate Steel Wire Armor layer.

The current construction includes:

• 23 AWG solid copper conductors
• Solid polyethylene insulation
• Four twisted pairs
• Star-shaped separator
• Tinned copper earthing wire
• Overall Al/PET foil
• Overall tinned copper braid
• Halogen-free inner jacket
• Steel wire armor
• Halogen-free outer jacket

The foil and tinned copper braid form the electromagnetic-screening architecture. Steel Wire Armor remains a separate mechanical-protection layer.

Copper Braid and Steel Armor Perform Different Functions

The Cat 6 SF/UTP SWA construction contains several metallic elements, so correct terminology matters.

Metallic Component	Material	Main Purpose
Overall Foil	Al/PET	Electromagnetic screening
Overall Braid	Tinned copper	Electromagnetic screening
Armor	Steel wire	Mechanical protection

These layers should not be grouped together under a generic term such as “shielding.”

The copper screening system addresses electromagnetic performance. The steel armor addresses physical protection.

U/UTP vs F/UTP vs SF/UTP Cat 6 SWA

Architecture	Overall Foil	Overall Copper Braid	Steel Wire Armor
U/UTP SWA	No	No	Yes
F/UTP SWA	Yes	No	Yes
SF/UTP SWA	Yes	Yes	Yes

The electromagnetic environment should determine whether U/UTP, F/UTP or SF/UTP is appropriate. The physical route should determine the requirement for Steel Wire Armor.

Why Is There No S/UTP SWA Product in the Current Range?

ETK Kablo's standard Cat 6 portfolio includes an S/UTP category. However, the currently published Cat 6 SWA category contains only U/UTP, F/UTP and SF/UTP products.

A project requiring an S/UTP core together with Steel Wire Armor should therefore confirm availability with ETK Kablo rather than assuming that the construction forms part of the standard published range.

250 MHz Cat 6 SWA Performance

The current Cat 6 SWA products publish Category 6 transmission characteristics through 250 MHz.

Relevant electrical parameters include:

• Insertion loss
• Near-end crosstalk (NEXT)
• Power-sum NEXT
• Equal-level far-end crosstalk
• Power-sum equal-level far-end crosstalk
• Return loss
• Characteristic impedance
• Propagation velocity

The Steel Wire Armor does not increase the Category 6 bandwidth. It protects a 250 MHz Ethernet core mechanically.

Cat 6 SWA Cable for Gigabit Ethernet

Cat 6 SWA cable can support 1000BASE-T Gigabit Ethernet when the complete installed channel meets the applicable Category 6 requirements.

Potential applications include:

• Industrial Ethernet
• Factory networks
• Industrial automation
• IP surveillance
• Building automation
• Energy and utility infrastructure
• Technical buildings
• Warehouses and logistics facilities
• Transport infrastructure
• Mechanically exposed Ethernet routes

The armor changes the physical construction without increasing the standardized data rate, frequency or Ethernet channel distance.

Cat 6 SWA Cable Length

Steel Wire Armor does not extend the normal transmission distance of balanced copper Ethernet.

A structured Ethernet channel commonly uses a maximum total channel length of 100 meters, normally including up to 90 meters of permanent-link cable together with patch and equipment cords.

The armor does not act as a signal amplifier or repeater.

For substantially longer infrastructure routes, fiber optic cable can provide an alternative network architecture.

Cat 6 SWA Cable for Industrial Ethernet

Industrial environments can expose network cabling to physical risks that are uncommon in protected office pathways.

Steel Wire Armored Cat 6 cable can provide additional mechanical protection for fixed Ethernet routes through factories, utility areas, technical rooms and infrastructure pathways.

The electromagnetic environment still requires separate consideration. U/UTP can suit controlled conditions, while F/UTP and SF/UTP provide additional overall screening where the project specifies it.

Cat 6 SWA Cable for Industrial Automation

Industrial automation systems increasingly use Ethernet between controllers, switches, machines and supervisory systems.

Cat 6 SWA can provide mechanical protection where these fixed network routes pass through physically exposed technical areas.

However, Steel Wire Armor should not automatically be interpreted as continuous-flex, drag-chain or robotic-motion qualification. Those applications require separate cable-design evidence.

Cat 6 SWA Cable for IP CCTV

IP surveillance networks can place Ethernet cabling in industrial and physically exposed routes.

Cat 6 SWA can provide additional mechanical protection for connections serving compatible cameras, switches and surveillance infrastructure.

F/UTP or SF/UTP can add electromagnetic screening where required, while PoE loading should be evaluated according to the electrical and thermal conditions of the complete network.

Cat 6 SWA Cable for Cable Trays

Industrial cable trays can contain data, control, instrumentation and power infrastructure.

Where an Ethernet route faces greater physical exposure, Steel Wire Armor can add a mechanical protection layer.

F/UTP or SF/UTP versions can provide additional electromagnetic screening where the project requires it.

Normal separation requirements from power circuits should still be followed.

Cat 6 SWA Cable for Outdoor and Infrastructure Routes

The current Cat 6 SWA products use halogen-free inner jackets and UV-resistant halogen-free outer jackets.

This construction can be relevant to demanding fixed infrastructure routes where steel mechanical protection forms part of the specification.

However, outdoor, underground and buried installations can introduce moisture, water, chemical and environmental requirements that exist independently from the armor itself.

Project engineers should define those conditions separately during cable selection.

Can Cat 6 SWA Cable Be Installed Underground?

Steel Wire Armored Cat 6 can be relevant to underground duct and infrastructure routes where additional mechanical protection is required.

Underground pathways can also expose cables to standing water, moisture, pulling loads and other environmental conditions.

The complete route should therefore be evaluated rather than treating SWA alone as confirmation of suitability for every underground installation.

Can Cat 6 SWA Cable Be Direct Buried?

Direct-burial suitability depends on the complete cable design and the environmental conditions of the route.

Steel Wire Armor provides mechanical protection, but buried installations can also require specific moisture, water-blocking, chemical, tensile or environmental characteristics.

Projects requiring direct burial should provide the installation conditions during the RFQ so that ETK Kablo can evaluate the appropriate cable construction.

Cat 6 SWA vs SWB Cable

Feature	SWA	SWB
Full Name	Steel Wire Armor	Steel Wire Braid
Mechanical Construction	Steel wire armor layer	Braided steel-wire layer
Main Function	Mechanical protection	Mechanical protection
Category Frequency	250 MHz	250 MHz
Current Core Options	U/UTP, F/UTP, SF/UTP	U/UTP, F/UTP, SF/UTP

The route requirements should determine whether SWA or SWB is appropriate. Neither mechanical construction should automatically be described as universally superior.

Cat 6 SWA vs Standard Cat 6 Cable

Feature	Cat 6 SWA	Standard Cat 6
Frequency	250 MHz	250 MHz
Gigabit Ethernet	Supported within compliant channel	Supported within compliant channel
Steel Mechanical Protection	Yes	No
Electrical Screening	Depends on U/UTP, F/UTP or SF/UTP	Depends on selected Cat 6 architecture
Main Selection Driver	Mechanical exposure + network requirement	Network and electromagnetic requirements

Steel Wire Armor is therefore the defining additional feature. It does not create a higher Ethernet category than Cat 6.

Cat 6 SWA vs Cat 5e SWA Cable

Characteristic	Cat 5e SWA	Cat 6 SWA
Category Frequency	100 MHz	250 MHz
Primary Ethernet Positioning	Gigabit Ethernet	Higher-performance Gigabit Ethernet
Mechanical Protection	Steel Wire Armor	Steel Wire Armor

The SWA mechanical principle can remain similar while the Ethernet core changes according to the required transmission category.

Cat 6 SWA vs Cat 6A SWA Cable

Characteristic	Cat 6 SWA	Cat 6A SWA
Category Frequency	250 MHz	500 MHz
Primary Ethernet Positioning	Gigabit Ethernet	10GBASE-T
Mechanical Protection	Steel Wire Armor	Steel Wire Armor

Projects requiring full-distance 10 Gigabit copper infrastructure should evaluate Cat 6A rather than selecting Cat 6 solely because both families use Steel Wire Armor.

Cat 6 SWA vs Aerial Ethernet Cable

Steel Wire Armor and an aerial messenger solve different mechanical requirements.

Construction	Main Purpose
Steel Wire Armor	Protects the cable mechanically
Aerial Messenger	Supports an overhead cable span

An SWA cable should not automatically be treated as an aerial cable. Likewise, a messenger-supported cable should not automatically be described as armored.

Cat 6 SWA Copper vs Armored Fiber Optic Cable

Steel-armored copper Ethernet and armored fiber optic cable address different network requirements.

Cat 6 copper provides familiar Ethernet connectivity and can form part of compatible Power over Ethernet systems.

Fiber optic cable provides electrical isolation, immunity to electromagnetic interference and substantially longer transmission distances.

For long infrastructure links, inter-building connections or electrically complex routes, project engineers should compare both architectures before final specification.

LSOH Inner and Outer Jackets

The three currently published Cat 6 SWA products use halogen-free inner and outer jackets.

The product documentation publishes smoke-density, flame-propagation, corrosive-gas and halogen-content test information.

LSOH or LSZH describes material and reaction-to-fire characteristics. It does not establish fire-resistant circuit integrity such as FE180 or PH120.

Cat 6 SWA Electrical Characteristics

Parameter	Current Published Family Value
Conductor Resistance at 20°C	Max. 94 Ω/km
Insulation Resistance at 20°C	5000 MΩ/km
Mutual Capacitance	Max. 56 nF/km
Resistance / Capacitance Unbalance	2%
Propagation Velocity	67–69%
Characteristic Impedance	Nominal 100 Ω
Operating Voltage	250 V DC
Test Voltage	1200 V DC for 1 minute

Current Cat 6 SWA Product Dimensions

Product	Conductor	Approx. Cable Diameter	Published Packing Lengths
U/UTP SWA	23 AWG solid copper	10.9 mm	305 / 500 / 1000 m
F/UTP SWA	23 AWG solid copper	11.3 mm	305 / 500 / 1000 m
SF/UTP SWA	23 AWG solid copper	11.9 mm	305 / 500 / 1000 m

The increasing outside diameter reflects the additional electromagnetic-screening layers used by F/UTP and SF/UTP. Exact dimensions and packing requirements should still be confirmed during quotation.

Cat 6 SWA Mechanical Characteristics

The current ETK Kablo SWA datasheets publish:

• 23 AWG solid copper conductors
• Steel wire armor
• Halogen-free inner and outer jackets
• Minimum bending radius: 8xD
• Operating temperature: -20°C to +60°C
• Packing lengths: 305 m, 500 m and 1000 m

Exact cable diameter and weight vary according to the selected electromagnetic-screening architecture.

Cat 6 SWA Cable Standards

The current ETK Kablo Cat 6 SWA technical documentation references:

• ANSI/TIA-568-C.2
• IEC 61156-5
• IEC 11801

The published transmission-performance tables extend through 250 MHz.

Project specifications can require different standard editions, CPR classifications or additional approvals, so procurement teams should verify the requirements for the exact supplied construction.

Cat 6 SWA Cable and Power over Ethernet

Cat 6 SWA cable can form part of compatible Power over Ethernet systems.

The steel armor does not determine PoE capability. Remote powering depends primarily on the electrical and thermal characteristics of the copper pairs.

Relevant design factors include:

• Solid copper conductor construction
• Conductor resistance
• Resistance unbalance
• Network distance
• Cable bundle size
• Ambient temperature
• Installation pathway
• Required PoE level

Mechanical protection should therefore be evaluated separately from PoE electrical and thermal design.

How to Specify Cat 6 SWA Cable

A complete RFQ should define network performance, electromagnetic screening and mechanical requirements independently.

Specification Item	Information to Provide
Category	Cat 6
Bandwidth	250 MHz
Network Requirement	1000BASE-T or applicable Ethernet application
Conductor	23 AWG solid copper
Mechanical Protection	Steel Wire Armor (SWA)
Ethernet Screening	U/UTP, F/UTP or SF/UTP
Jacket	Current published range: LSOH inner and outer jackets
Installation Environment	Industrial, infrastructure, tray, duct or other mechanically exposed route
EMI Environment	Required electromagnetic-screening architecture
PoE Requirement	Required PoE application where applicable
Underground or Buried Route	Specify moisture and environmental conditions separately
Documentation	Datasheet, DoP where applicable and project-specific documentation

Why Choose ETK Kablo for Cat 6 SWA Cable?

ETK Kablo manufactures Steel Wire Armored Cat 6 Ethernet cables for mechanically demanding network infrastructure.

The current range includes U/UTP, F/UTP and SF/UTP Ethernet architectures, allowing electromagnetic screening to be selected independently from the SWA mechanical requirement.

The products use 23 AWG solid copper conductors and retain Category 6 transmission performance through 250 MHz while using halogen-free inner and outer jackets around the steel armor.

ETK Kablo can evaluate SWA construction, Ethernet screening, installation conditions, PoE requirements, packing lengths and project documentation during the quotation process.

Frequently Asked Questions About Cat 6 SWA Cable

What is Cat 6 SWA cable?

Cat 6 SWA cable is a Category 6 Ethernet cable with Steel Wire Armor around the inner-jacketed cable core to provide additional mechanical protection.

What does SWA mean?

SWA means Steel Wire Armor. It describes the steel mechanical-protection layer around the cable.

What frequency is Cat 6 SWA cable?

The current ETK Kablo Cat 6 SWA products provide Category 6 transmission performance through 250 MHz.

Does Cat 6 SWA support Gigabit Ethernet?

Yes. Cat 6 SWA can support 1000BASE-T Gigabit Ethernet when the complete installed channel meets the applicable Category 6 requirements.

What conductor size does ETK Kablo Cat 6 SWA use?

The current U/UTP, F/UTP and SF/UTP SWA datasheets specify 23 AWG solid copper conductors.

Is SWA the same as Ethernet shielding?

No. Steel Wire Armor provides mechanical protection. Ethernet shielding uses metallic components such as Al/PET foil and tinned copper braid inside the network-cable core.

Can Cat 6 SWA cable be U/UTP?

Yes. ETK Kablo currently manufactures a U/UTP SWA construction with steel mechanical protection but no dedicated metallic electromagnetic screen.

Does ETK Kablo manufacture F/UTP SWA Cat 6?

Yes. The current F/UTP SWA cable uses an overall Al/PET foil and tinned copper earthing wire together with a separate Steel Wire Armor layer.

Does ETK Kablo manufacture SF/UTP SWA Cat 6?

Yes. The current SF/UTP SWA construction combines overall foil, overall tinned copper braid and a separate Steel Wire Armor layer.

Does ETK Kablo manufacture S/UTP SWA Cat 6?

An S/UTP product is not currently listed in the published Cat 6 SWA category. Projects requiring this configuration should confirm availability with ETK Kablo.

What is the difference between Cat 6 SWA and SWB?

SWA uses a steel wire armor construction, while SWB uses a braided steel-wire layer. Both provide mechanical protection through different physical constructions.

Is Cat 6 SWA cable LSZH?

The three currently published Cat 6 SWA products use halogen-free inner and outer jackets.

Is Cat 6 SWA cable fire resistant?

Not automatically. Halogen-free and flame-related material characteristics do not establish defined fire-resistant circuit integrity.

Can Cat 6 SWA cable be installed underground?

It can be relevant where an underground route requires additional mechanical protection, but moisture, water exposure and other environmental conditions should be evaluated separately.

Can Cat 6 SWA cable be directly buried?

Direct-burial suitability depends on the complete cable construction and installation conditions. Steel Wire Armor alone should not be treated as universal confirmation of direct-burial suitability.

Can Cat 6 SWA cable support PoE?

Cat 6 SWA cable can form part of compatible PoE systems. Conductor resistance, network distance, bundle conditions, ambient temperature and the required PoE level should form part of the system design.

What information should I provide when requesting a quotation?

Provide the Cat 6 requirement, SWA construction, U/UTP/F/UTP/SF/UTP architecture, installation environment, underground or outdoor conditions where applicable, PoE requirement, quantity and required project documentation.