Description

Flex Cable 16mm 5 Core: Heavy-Duty Industrial Power Cable

Multicore flexible cables are essential for distributing power in demanding industrial and commercial settings. This 16mm² 5-core cable features five insulated conductors, typically colour-coded for easy identification in three-phase systems, making it ideal for applications requiring neutral and earth connections alongside the three phases .

The generous 16mm² conductor size offers substantial current-carrying capacity, typically rated for circuits up to 70-100 Amps depending on insulation type and installation conditions . This makes it suitable for heavy machinery, industrial equipment, and high-power distribution where reliable performance is essential.

Flex Cable 16mm 5 Core: Key Specifications

SpecificationDetails
Conductor Size16 mm² per core
Number of Cores5
Conductor MaterialPlain annealed stranded copper
Conductor ClassClass 5 flexible (fine-wire stranding)
Core ColoursBrown, Black, Grey, Blue, Green/Yellow (typical)
Insulation MaterialPVC, XLPE, or TPE / Rubber
Sheath MaterialPVC or Rubber / Elastomer
Sheath ColourBlack or Grey
Voltage Rating0.6/1kV (600/1000V) or 450/750V
Current Rating70-100 Amps (dependent on insulation and installation)
Conductor ResistanceApproximately 1.15 Ω/km at 20°C
Maximum Operating Temperature85-90°C
Minimum Operating Temperature-25°C to -15°C (depending on grade)
Outer Diameter23-33 mm typical
StandardsBS 6004, IEC 60502, HD 22.4, IS 694:2010

Flex Cable 16mm 5 Core: Conductor Construction

The conductors are manufactured from plain annealed copper with fine-wire stranding (Class 5), providing exceptional flexibility compared to solid or Class 2 stranded conductors . This fine stranding allows the cable to be bent and routed easily in confined spaces, making it ideal for installation in conduit, trunking, or cable trays where space is limited.

The stranded construction offers several advantages:

  • Flexibility: Easy to route around corners and into termination points

  • Vibration Resistance: Ideal for machinery connections subject to movement

  • Termination: Provides excellent contact area in terminals and lugs

  • Handling: Easier to strip and prepare for connection

Flex Cable 16mm 5 Core: Insulation and Sheath Materials

The cable features high-quality insulation and sheath materials selected for industrial durability:

Core Insulation: Each conductor is individually insulated with materials such as PVC, XLPE (cross-linked polyethylene), or TPE/rubber, providing excellent dielectric strength and protection . The insulation is colour-coded for easy identification in three-phase installations – typically brown, black, grey for phases, blue for neutral, and green/yellow for earth .

Outer Sheath: The assembled cores are encased in a tough PVC or rubber outer sheath, offering robust protection against:

  • Mechanical abrasion and impact

  • Oils, greases, and industrial chemicals

  • UV exposure (for outdoor installations)

  • Moisture and weathering

  • Flame retardant properties meeting IEC 60332-1 standards

Flex Cable 16mm 5 Core: Current Ratings

The current-carrying capacity of 16mm² 5-core cable depends on insulation type and installation method. Typical ratings include:

Installation MethodCurrent Rating
PVC Insulated in air70 Amps
XLPE Insulated in air96 Amps
Rubber Insulated in air92 Amps
Buried direct (XLPE)100 Amps

These ratings are typical at 30°C ambient temperature and may require derating for higher temperatures or grouped installations. Reference should be made to current wiring regulations for final sizing.

Flex Cable 16mm 5 Core: Applications

This heavy-duty multicore cable is suitable for numerous industrial and commercial applications:

Three-Phase Power Distribution: Ideal for supplying three-phase power to industrial machinery, production lines, and manufacturing equipment.

Electric Vehicle Charging Stations: The 5-core configuration (3 phases + neutral + earth) is perfect for connecting EV charging stations to the mains supply, supporting fast charging capabilities .

Industrial Control Systems: Used for power and control connections in factories, process plants, and automation systems.

Building Sites and Temporary Installations: Flexible construction suits temporary power distribution for construction sites and events .

Machine Tools and Servo Drives: Provides reliable power connections for precision machinery .

Heavy Equipment Connections: Suitable for connecting large motors, pumps, compressors, and other heavy electrical equipment.

Refrigeration Installations: Can be used in refrigerating installations where flexible connections are required .

Flex Cable 16mm 5 Core: Core Identification

The five cores are typically colour-coded for easy identification in three-phase installations :

  • Brown: Phase 1 (L1)

  • Black: Phase 2 (L2)

  • Grey: Phase 3 (L3)

  • Blue: Neutral (N)

  • Green/Yellow: Earth (PE)

This standard colour coding ensures correct connection to distribution boards, switchgear, and equipment, reducing installation errors and enhancing safety.

Flex Cable 16mm 5 Core: Voltage Rating

The cable is available with different voltage ratings depending on the specific standard:

  • 0.6/1kV (600/1000V): Common for XLPE and rubber insulated cables

  • 450/750V: Typical for some flexible cable grades

The rating indicates:

  • Uo: Voltage to earth (phase to neutral/earth)

  • U: Voltage between phases

This makes the cable suitable for standard three-phase installations up to 1000V, covering most industrial and commercial applications.

Flex Cable 16mm 5 Core: Installation Considerations

Conduit and Trunking: The flexible construction makes this cable ideal for drawing into conduit systems, though the larger diameter (23-33mm) requires appropriately sized containment .

Bending Radius: The minimum bending radius should be observed to prevent damage to internal conductors. For flexible cables, this is typically:

  • Dynamic installations: 6-8 times the cable diameter

  • Fixed installations: 4-6 times the cable diameter

Termination: Due to the large conductor size, appropriate termination methods are essential. Use suitable crimped lugs, mechanical connectors, or terminals designed for 16mm² conductors.

Derating: When multiple cables are bunched together, run in thermal insulation, or exposed to high ambient temperatures, derating factors apply. Consult wiring regulations for guidance.

Temperature Range: The cable is suitable for operation from -25°C to +90°C depending on the specific grade, with different ranges for fixed and moving installations .

Flex Cable 16mm 5 Core: Quality and Compliance

This cable is manufactured to meet rigorous international standards:

  • BS 6004: British Standard for PVC-insulated cables

  • IEC 60502: Power cables with extruded insulation

  • HD 22.4 / EN 50525-2-21: European standards for rubber-insulated cables

  • IS 694:2010: Indian Standard for PVC-insulated cables

  • CE Marking: Indicates compliance with relevant European directives

  • RoHS Compliance: Free from hazardous substances

  • Flame Retardant: Meets IEC 60332-1-2 standards for fire performance

Flex Cable 16mm 5 Core: Availability

This cable is typically available in various formats:

  • Per metre: Cut to your exact requirements for smaller projects

  • 20m lengths: For medium-sized installations

  • 50m reels: For medium-sized installations

  • 100m reels: Standard drum size for contractors and regular users

  • 1000m drums: For bulk supply to large contractors

When ordering cut lengths per metre, you will receive one continuous piece of cable, not multiple sections.

Flex Cable 16mm 5 Core: Storage and Handling

Store the cable in a clean, dry environment away from direct sunlight and chemicals that could degrade the sheath. Reels should be stored upright or flat to prevent distortion. When paying out cable, ensure it is not kinked or twisted, which could damage the insulation or conductor.

When installed correctly in accordance with current wiring regulations, Flex Cable 16mm 5 Core provides a safe, reliable, and flexible solution for high-current three-phase power distribution in industrial, commercial, and EV charging applications.

Recently Viewed