Shortage of NA2XSF2Y? We have the three-core medium-voltage cable

A cable with a key role

The NA2XSF2Y is one of the most important medium-voltage cables in the energy infrastructure – especially in the three-core version NA2XSF2Y 3x1x. It is mechanically robust, longitudinally watertight, suitable for direct burial, and therefore ideal for modern grid applications in onshore wind farms and solar plants. Medium-voltage cables such as the NA2XS(F)2Y 3x1x300 RM/25 12/20kV are currently in particularly high demand – not only because of their technical performance, but also because of their universal applicability in demanding environments.

A bottleneck with consequences

What used to be readily available is now hard to obtain. The cause lies in a mix of supply chain issues, scarce raw materials, and an overloaded production market. Many suppliers are simply sold out or can only deliver with months of delay – with drastic impacts on construction timelines and project costs.

Where reserves still exist

Despite the tense situation, there are still occasional sources with immediate availability – thanks to strategic stockpiling and streamlined logistics. We at KLZ are among the suppliers who can deliver the sought-after three-core medium-voltage cable. Anyone who can still access the NA2XSF2Y 3x1x or the NA2XS(F)2Y 3x1x300 RM/25 12/20kV today gains a crucial time advantage – and prevents delays before they arise.

Structure and materials

The NA2XSF2Y is a single-core medium-voltage cable with the following properties:

• Aluminum round conductor (RM)
• Cross-linked polyethylene insulation (XLPE)
• Inner and outer conductive layer
• Shield made of copper wires and copper tape
• Longitudinal water tightness in conductor and sheath area
• Outer sheath made of polyethylene (PE), black, UV-resistant

The currently highly sought-after three-core version NA2XSF2Y 3x1x consists of three separately laid single cores – ideal for flexible routing and high-performance installations.

Technical characteristics

The three-core version NA2XS(F)2Y 3x1x300 RM/25 12/20kV meets all requirements for use in demanding environments:

• Rated voltage: 12/20 kV
• Conductor cross-section: 300 mm² aluminum
• Conductor screen: extruded conductive
• Longitudinal water tightness: via swellable tapes
• Installation method: suitable for direct burial

Why longitudinal water tightness is crucial for medium-voltage cables

Especially in direct burial, moisture is a constant risk. The integrated longitudinal water tightness prevents:

• Capillary spread of water along the conductor
• Short circuits caused by penetrating moisture
• Consequential damage in case of local damage to the cable sheath

That’s why the NA2XSF2Y 3x1x is the safe choice for long-lasting underground energy infrastructure. More info on overhead lines vs. underground cables can be found here:

Freileitung und Erdkabel sind „Stand der Technik“

Freileitung oder Erdkabel? Wir erklären Ihnen die Unterschiede und Möglichkeiten, aber auch warum was möglich ist und warum was nicht.

www.hochspannungsblog.at

Grid connection in wind power plants

In onshore wind farms, the three-core medium-voltage cable NA2XSF2Y 3x1x plays a crucial role: it connects wind turbines to transformer stations or directly to the medium-voltage grid. Its robust design and longitudinal water tightness make it ideal for:

• direct burial in the ground without additional protection
• long routes with varying soil conditions
• high electrical load capacity over decades

Use in substations and transformer stations

Whether as a feeder to the transformer or for distribution in the medium-voltage field – the three-core version NA2XS(F)2Y 3x1x300 RM/25 12/20kV is a true standard in substations. Advantages:

• compact installation even in limited space
• UV-resistant PE sheath for indoor and outdoor use
• lower fire load compared to PVC-based cables

Application in difficult soil conditions

Moist clay soil? High groundwater risks? Especially in such scenarios, the NA2XSF2Y excels thanks to its longitudinal water tightness. It is preferred for:

• routes through swampy or unconsolidated terrain
• installations with high mechanical stress (e.g. under roads)
• installation without protective conduit in sensitive areas

This versatility makes the NA2XSF2Y 3x1x one of the most universal medium-voltage cables on the market. Especially for cable infrastructure in onshore wind farms, the NA2XS(F)2Y is the first choice.

Causes of the shortage

The current scarcity of the three-core NA2XSF2Y has several causes that reinforce each other:

• Strongly increased demand due to accelerated grid expansion in Europe, especially in wind and solar parks
• Production bottlenecks for insulating materials such as XLPE and for aluminum
• Long delivery cycles due to limited manufacturing capacity at producers
• Logistics issues caused by overloaded transport routes and delays in supply chains

Impact on ongoing projects

The effects are clearly felt in the industry – not only on large-scale projects. Delays in delivering the three-core cable NA2XSF2Y 3x1x lead to:

• Construction site standstills, especially for grid connection
• Contract penalties for missed commissioning deadlines
• High planning effort due to last-minute switches to alternative solutions

What planners and EPCs should keep in mind now

Given the precarious supply situation, we recommend:

• Early cable inquiries with suppliers – already in the planning phase
• Include project buffers – in both schedule and budget
• Availability over price – securing types that can be delivered quickly often keeps the project moving

Especially if the use of NA2XS(F)2Y 3x1x300 RM/25 12/20kV is planned, it’s worth checking current stock availability – before options run out.

Strategic stockpiling instead of reacting to shortages

While many only reorder once the market is already sold out, we focus on proactive stockpiling. We secured key types such as the popular three-core medium-voltage cable NA2XSF2Y 3x1x in relevant quantities early on – because we know how critical these are for grid expansion. And that’s exactly what makes the difference now: we have these cables as a supplier – and they are available with us. All details and technical data can be found here:

NA2XS(F)2Y Cables 12kV | KLZ

NA2XS(F)2Y cables, 6-30 kV, Al conductor, XLPE insulation, IEC compliant, ideal for renewable energy, industrial use. High durability.

/products/power-cables/medium-voltage-cables/na2xsf2y/

Logistics that think ahead

Our logistics processes are designed for speed and flexibility. With our warehouse directly connected to Germany and the Netherlands, we can supply construction sites in the shortest possible time.

• Response times in days instead of weeks
• Reliable delivery via experienced freight forwarders
• Flexible delivery according to construction progress

We don’t just deliver the cables you need, but the complete package. From professional advice on the right cable selection to delivery directly to the construction site – we support your entire project. Reliably, expertly, and promptly.

Redundancy instead of risk

We rely on multiple supply chains and have deliberately built up warehouse capacities. This ensures that even during industry-wide shortages, we can still deliver – without improvisation. Even types such as the sought-after three-core cable NA2XS(F)2Y 3x1x300 RM/25 12/20kV are available from us. No excuses – we deliver what others only offer.

We deliver the cables you need!
Contact us for a specific request.

Is the NA2XSF2Y suitable for direct burial?

Yes, the NA2XSF2Y is specifically designed for direct installation in the ground. Thanks to its longitudinal water tightness and robust outer sheath construction, it is ideal for underground routes – even in challenging soil conditions or varying moisture zones.

Which CPR class does the cable meet?

The CPR classification (Construction Products Regulation) depends on the specific design and manufacturer. Common for the NA2XSF2Y 3x1x are classes such as Eca or better, depending on the sheath material used. If in doubt, we will provide the exact declaration for the desired product.