What Makes the Short-Circuit-Proof NSGAFÖU Rubber-Jacketed Single-Conductor Cable Special

The rubber-jacketed NSGAFÖU single-conductor cable offers a wide range of characteristics that make it especially well suited for control cabinet construction. Its versatility also makes it a reliable choice for applications in buses, railway vehicles, and on construction sites.

That’s because this cable is designed to handle many of the challenges common to these applications. The NSGAFÖU is widely used in control cabinets because it is both short-circuit-proof and flexible. It is also resistant to heat and oil, flame retardant, and designed for reliable continuous operation in harsh conditions.

Anyone who has wired a control cabinet is likely familiar with the NSGAFÖU rubber-jacketed single-conductor cable. Its robust construction makes it a versatile choice, especially for demanding or specialized applications.

If installed with protection, the NSGAFÖU is both short-circuit- and ground-fault-proof up to 1,000 volts. This makes it particularly well suited for installation in control cabinets. Thanks to its high current carrying capacity, it can also be used as a control cable in buses or railway vehicles.

What does NSGAFÖU mean?

The cable’s name isn’t just a random assortment of letters. Each letter represents a specific characteristic or function of the cable.

• N = Standardized cable
• S = Specialty cable
• G = Rubber insulation
• A = Jacketed single-conductor cable
• F = Flexible conductor (Class 5)
• Ö = Oil resistant
• U = Flame retardant according to VDE 0482-332-1-2/IEC 60332-1-2

Seven letters come together to create a precise product designation.

When standard cables aren’t up to the task, the NSGAFÖU is often an ideal solution. Some of its typical applications include:

• Control cabinets and substations: short-circuit- and ground-fault-proof cabling up to 1,000 volts
• Buses and railway vehicles: robust control and power cabling
• Cranes: reliable power supply under continuous loads
• Construction sites: applications involving heavy mechanical loads and harsh environmental conditions

In control cabinet construction, there is one simple rule: Cables installed before the main switch, which can remain energized even when the system is turned off, must be clearly identified. These cables are often colored orange, while cables installed after the main switch are typically black. This allows technicians and engineers to distinguish between them at a glance.

To identify these cables and wires as energized, control cabinet builders often use orange heat-shrink tubing or wraps. However, these additional steps take time, and ferrules can potentially be damaged during the heat-shrinking process. HELU eliminates these extra steps by offering the NSGAFÖU with an orange jacket.

For the user, the advantages are:

• Time savings: eliminates time-consuming heat shrinking or wrapping
• Fewer stock items: no separate heat-shrink tubing or wraps required
• Smaller outer diameter: simplifies installation in cable organizers
• No wrinkling: provides a clean, orderly appearance in the control cabinet
• Reduced risk of ferrule damage: eliminates the need for heat guns
• Cleaner appearance: provides uniform cable identification without additional materials