LAN cables - Data transmission solution in buildings
LAN cables are divided into different CAT (category) types.
- CAT 5 and CAT 5e cables allow data transmission at speeds up to 100 Mb/s.
- For modern enterprise applications, we recommend using CAT 6 or CAT 6a, as these cable types can achieve gigabit speeds.
- Meanwhile, CAT 7 and CAT 7a support data transfer speeds of 10 gigabits per second or higher.
Our HELUKAT network cable lines fully comply with all of the above cable standards.
Technical specifications of Cat 5, Cat 6, Cat 7 LAN cables
| CAT | Frequency / Maximum bandwidth | Data rate / Application | Typical maximum length* | Features/ screening |
| CAT 5 | Up to 100 MHz | 100 Mbit/s (2 pairs) 1 Gbit/s (4 pairs) | 100 m | Industrial applications: screened, Building wiring: also unscreened |
| CAT 6 | Up to 250 MHz | 1 gigabit per second, 10 Gbit/s (at short distances) | 100 m (55 meters at a speed of 10 Gbit) | Industrial applications: screened, Building wiring: also unscreened, Improved crosstalk attenuation, with physical separator or every pair is screened, pos. addtl. physical separator |
| CAT 6a | Up to 500 MHz | 10 gigabits per second | 100 m | |
| CAT 7 | Up to 600 MHz | 10 gigabits per second | 100 m | Every pair is screened, pos. addtl. physical separator + cable screen (e.g., S/FTP) |
| CAT 7a | Up to 1,000 MHz | 10 gigabits per second | 100 m | The maximum frequency is even higher than CAT 7 |
| CAT 8** | Up to 2,000 MHz | Up to 40 Gbit/s (at short distances) | Approximately 30 meters | Well-screened (e.g., S/FTP), high requirements for plug and materials |
* For copper cable, the maximum allowable length is 100 meters, calculated based on the total length of the fixed installation cable and the patch cable — typically consisting of 90 meters of fixed cable + 10 meters of patch cable.
Applicable to building wiring systems.
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HELUKABEL's Cat 5, Cat 6, Cat 7 LAN cable
1. Cat 5 LAN cables
Our Cat 5 cables
2. Cat 6 LAN cables
Our Cat 6 cables
3. Cat 7 LAN cables
Our Cat 7 cables
4. Network patch cables
Our patch cablesCat 5 LAN cables
Cat 5 LAN cables can transmit data at speeds of up to 100 Mbps and were once a popular choice in computer networks. The main advantages of this type of cable are its low cost and ease of installation.
Cat 5e cable is an upgraded version that supports Gigabit Ethernet connections with the 1000BASE-T standard.
| Cat 5 LAN cable | Number of cores x AWG | Sheath material | Sheath color | Characteristics | Part number |
| HELUKAT® 100 CAT.5 U/UTP PVC FLEX | 4x2xAWG 26/7 | PVC | Grey | 80055 | |
| HELUKAT® 100-PH120 CAT.5 F/UTP FR-0H STATIC | 4 x 2 x AWG 23 /1 | LSZH | Red | Halogen-free | 804045 |
| HELUKAT® 100 CAT.5 F/UTP FRNC FLEX | 4 x 2 x AWG 26/7 | FRNC | Grey | Halogen-free | 81278 |
| Cat 5e LAN cable | Number of cores x AWG | Sheath material | Sheath color | Characteristics | Part number |
| HELUKAT® 200 CAT.5e SF/UTP FRNC STATIC | 4x2xAWG 24/1 | FRNC | Grey | Halogen-free, Dca CPR | 81609 |
| HELUKAT® 200 CAT.5e SF/UTP FRNC FLEX | 4 x 2 x AWG 26/7 | FRNC | Grey | Halogen-free | 81254 |
| HELUKAT® 155 CAT.5e U/UTP PVC STATIC | 4 x 2 x AWG 24 /1 | PVC | Grey | Eca CPR | 80053 |
| HELUKAT® 200 CAT.5e F/UTP PVC FLEX | 4 x 2 x AWG 26/7 | PVC | Grey | UL certified | 802173 |
| HELUKAT® 155 CAT.5e F/UTP PVC STATIC | 4 x 2 x AWG 24 /1 | PVC | Yellow | Eca CPR | 80043 |
| HELUKAT® 200 CAT.5e SF/UTP PVC STATIC | 4 x 2 x AWG 24 /1 | PVC | Grey | CE marking | 81610 |
| HELUKAT® 100T CAT.5e S/UTP PUR TORSION | 2 x 2 x AWG 22/19 | PUR | Green | UL/CSA, halogen-free, UV-resistant, for twisted applications | 802186 |
| HELUKAT® 200A CAT.5e F/UTP PE STATIC | 4 x 2 x AWG 24 /1 | PE | Black | Halogen-free, UV-resistant | 805572 |
Cat 6 LAN cables
This cable operates stably at frequencies up to 250 MHz and is capable of transmitting data at speeds of 10 Gbps over short distances (typically not exceeding 55 m). As a result, Cat 6 is well suited for Gigabit Ethernet networks as well as applications requiring high bandwidth and high speeds.
For Cat 6A cables, the frequency can reach up to 500 MHz.
| Cat 6 cable | Number of cores x AWG | Sheath material | Sheath color | Characteristics | Part number |
| HELUKAT® 450 CAT.6 F/FTP FRNC STATIC | 4x2xAWG 24/1 | FRNC | Green | Dca CPR | 82501 |
| HELUKAT® 300 CAT.6 U/FTP PVC FLEX | 4 x 2 x AWG 26/7 | PVC | Green | UL certification | 802174 |
| HELUKAT® 300 CAT.6 U/UTP FRNC FLEX | 4 x 2 x AWG 24/7 | FRNC | Grey | Halogen-free | 804996 |
| HELUKAT® 300 CAT.6 U/UTP FRNC STATIC | 4 x 2 x AWG 24 /1 | FRNC | Green | Halogen-free, Eca CPR | 804766 |
| HELUKAT® 300 CAT.6 U/UTP PVC STATIC | 4 x 2 x AWG 24 /1 | PVC | Grey | UL certification, Eca CPR | 802172 |
| HELUKAT® 300A CAT.6 U/UTP PE STATIC | 4 x 2 x AWG 24 /1 | PE | Black | Halogen-free, UV-resistant, for outdoor use | 805683 |
| Cat 6A LAN cable | Number of cores x AWG | Sheath material | Sheath color | Characteristics | Part number |
| HELUKAT® 500 CAT.6A F/FTP FRNC STATIC | 4x2xAWG 23/1 | FRNC | Violet | Halogen-free, Dca CPR | 803378 |
| HELUKAT® 500 CAT.6A U/FTP LSZH FLEX | 4 x 2 x AWG 26/7 | LSZH | Grey | Halogen-free | 804043 |
| HELUKAT® 500IND CAT.6A S/FTP PVC FLEX | 4 x 2 x AWG 23/7 | PVC | Black | 300V UL approval, flame-retardant | 11023769 |
| HELUKAT® 600 CAT.6A U/UTP FRNC STATIC | 4 x 2 x AWG 23 /1 | FRNC | Grey | Halogen-free | 805179 |
| HELUKAT® O&G Cat.6A F/FTP | 4x2xAWG 23/1 | FRNC | Black | Specialized for the oil and gas industry | 11018072 |
Cat 7 LAN cables
Cat 7 LAN cables are designed for high-performance network systems, with transmission capabilities up to 600 MHz. Under standard conditions, Cat 7 supports speeds of 10 Gbps over a maximum cable length of 100 meters.
In a laboratory environment, this cable also shows the potential to transmit data at speeds of up to 40 Gbps within a range of approximately 50 meters, and in some cases, speeds can approach 100 Gbps.
| Cat 7 cable | Number of cores x AWG | Sheath material | Sheath color | Characteristics | Part number |
| HELUKAT® 600 CAT.7 S/FTP FRNC FLEX | 4 x 2 x AWG 26/7 | FRNC | Grey | Halogen-free | 80294 |
| HELUKAT® 600 CAT.7e S/FTP duplex FRNC STATIC | 2 x (4 x 2 x AWG 23 /1) | FRNC | Violet | Halogen-free, Dca CPR | 81446 |
| HELUKAT® 600 CAT.7e S/FTP FRNC STATIC | 4 x 2 x AWG 23 /1 | FRNC | Violet | Halogen-free, Dca CPR | 80810 |
| HELUKAT® 600E CAT.7e S/FTP PVC STATIC direct burial | 4 x 2 x AWG 23 /1 | PVC | Black | UV protection | 802167 |
| HELUKAT® 600A CAT.7e S/FTP PVC STATIC | 4 x 2 x AWG 23 /1 | PVC | Black | UV protection | 801147 |
| HELUKAT® 1200 CAT.7e S/FTP FRNC STATIC | 4x2xAWG 22/1 | FRNC | Blue | Dca CPR | 81699 |
| HELUKAT® 600AE CAT.7e S/FTP PE STATIC | 4 x 2 x AWG 23 /1 | PE | Black | UV protection, direct threading, armored | 802168 |
| HELUKAT® 1500 CAT.7A S/FTP duplex FRNC STATIC | 2 x (4 x 2 x AWG 22 /1) | FRNC | Yellow | Halogen-free | 802170 |
| HELUKAT® 1200 CAT.7A S/FTP LSZH STATIC | 4 x 2 x AWG 23 /1 | LSZH | Violet | Halogen-free, Dca CPR | 803380 |
| HELUKAT® O&G Cat.7e S/FTP | 4x2xAWG 23/1 | FRNC | Black | Specialized for the oil and gas industry | 11018073 |
| Network patch cables | Number of cores x AWG | Sheath material | Sheath color | Frequency | Length (m) | Part number |
| HELUKAT® CONNECTING SYSTEMS® CAT.6A S/FTP RJ45 Patch Cables | 4x2xAWG 26/7 | LSZH | Grey | Up to 500 MHz | 1 - 15 | 802380 |
| HELUKAT® CONNECTING SYSTEMS® Patch Cables CAT.6A U/UTP RJ45 | 4x2xAWG 24/7 | LSZH | Grey | Up to 500 MHz | 1 - 15 | 804972 |
| HELUKAT® CONNECTING SYSTEMS® Patch Cables CAT.5e SF/UTP | 4x2xAWG 26/7 | PVC | Grey, blue, green, red, yellow, black | Up to 100 MHz | 0.5 - 15 | 803049 |
| HELUKAT® CONNECTING SYSTEMS® Patch Cables CAT.6 STP RJ45 | 4x2xAWG 27/7 | LSZH | Grey, blue, green, red, yellow, black | Up to 250 MHz | 0.5 - 15 | 806253 |
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Frequently Asked Questions about Cat 5, Cat 6, and Cat 7 Network Cables
The terms LAN cable (LAN = Local Area Network) and network cable actually refer to the same type of product. Both terms are used to describe cables used for data transmission within internal networks.
UTP and STP network cables differ in terms of shielding structure and application scope.
UTP (Unshielded Twisted Pair) cables are not equipped with any metallic shielding around the wire pairs or the cable core. Thanks to their simple design, UTP cables are lightweight, easy to install, and cost-effective. However, their resistance to electromagnetic interference (EMI) is limited, especially in environments with a high density of electrical equipment or sources of interference.
In contrast, STP (Shielded Twisted Pair) cables incorporate additional shielding around each twisted pair or around the entire cable bundle. This shielding helps reduce crosstalk and external electromagnetic interference. As a result, STP cables are commonly used in factories, industrial zones, and network systems that require high signal stability.
- The S/FTP variant provides dual shielding protection: an overall braided shield (S) covers the entire cable, while each individual pair is protected by an aluminum foil (FTP).
- F/FTP cables use an overall foil shield (F) instead of a braided screen, while each twisted pair remains individually wrapped in aluminum foil.
With a network operating at 1 Gbit/s, Cat 5 or Cat 6 LAN cables can meet basic needs. However, these cables are often not optimized for future scalability as bandwidth requirements increase.
For high-speed network infrastructures or specialized applications such as data centers and industrial automation, investing in Cat6 A, Cat 7, or Cat 8 cables will deliver more stable performance while ensuring compliance with next-generation network standards.
In practice, the transmission performance of LAN cables is strongly influenced by cable length. Each cable category delivers optimal performance only within a specific distance range:
- Over short runs of around 30 meters, Cat 8 cables can fully utilize their capabilities, supporting data transmission speeds of up to 40 Gbit/s.
- With a maximum length of approximately 55 meters, Cat 6 cable adequately supports the 10GBASE-T standard; when the distance exceeds this threshold, the transmission speed typically drops to the 1GBASE-T level (1 Gbit/s).
- To maintain the 10GBASE-T standard over the entire 100 m length, Cat 6A is the appropriate choice. Therefore, systems requiring 10 Gbit/s speeds at standard distances should prioritize Cat 6A or higher categories such as Cat 7.
For data transmission beyond 100 meters, fiber optic cables provide a more suitable solution, ensuring stable signal quality and long-term performance.
Yes. Specialized outdoor LAN cables are designed to withstand weather conditions thanks to their UV-resistant cable jackets and waterproof construction. These cables are suitable for outdoor installation or underground burial, and are all available in our HELUKAT product catalog.
