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  • New item   Copper installation cable NYM-J | 4×10 mm² | 300/500 V | white | 1 m | Lietkabelis KH05VV-U 4G10

    Copper installation cable NYM-J | 4×10 mm² | 300/500 V | white | 1 m | Lietkabelis KH05VV-U 4G10

    Code: 92049001
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    Price 7.01 € VAT incl.
    ( 5.79 € VAT excl. )
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    NYM-J 4×10 mm² (KH05VV-U 4G10) – AB Lietkabelis copper installation cable with solid class 1 conductors, PVC insulation and a white PVC sheath, 300/500 V. For fixed installation inside buildings: in walls, under plaster, in conduits and trunking. Sold by the metre.

    4 cores (L1, L2, L3, PE) for three-phase 400 V loads without neutral – motors, pumps, compressors. If there will be single-phase loads, choose a 5-core cable.

  • Product description

    Copper installation cable NYM-J | 4×10 mm² | 300/500 V | white | 1 m | Lietkabelis KH05VV-U 4G10

    NYM-J 4×10 mm² – white copper cable with 4 solid conductors (L1, L2, L3, PE – no neutral N) for fixed electrical installation inside buildings. Manufacturer – AB Lietkabelis, designation KH05VV-U 4G10, rated voltage 300/500 V.

    Key point:
    A four-core cable is intended for three-phase loads that need no neutral: three phases and a protective PE. If single-phase appliances will also be supplied from the same circuit, choose 5-core NYM-J.
    Number of cores
    4 (L1, L2, L3, PE)
    Cross-section
    10 mm²
    Typical protection
    40 A circuit breaker
    Installation
    Indoors

    How it works

    The cable is installed permanently: in walls, under plaster, in conduits or trunking from the board to the load. Cores are connected by colour: L1, L2, L3, PE – no neutral N.

    Solid 10 mm² copper conductors carry the current, while PVC insulation and the white sheath protect them mechanically and electrically. The continuous conductor temperature is up to +70 °C, so the current rating depends on how well the cable dissipates heat.

    With the right protection (40 A) and length (up to ≈ 75 m at 40 A), the circuit runs for years without overheating and the voltage drop stays within 3 %.

    Why choose NYM-J 4×10 mm²?
    It is a simple, reliable solution for a circuit where three-phase 400 V without neutral is needed: solid conductors are easy to terminate, the white sheath looks neat on surfaces, and you buy exactly as many metres as you need.

    Technical data

    Product type Copper installation cable NYM-J
    Manufacturer AB „Lietkabelis“ – KH05VV-U 4G10
    Number of cores 4 (L1, L2, L3, PE – no neutral N)
    Cross-section per core 10 mm²
    Conductor Solid (class 1) annealed copper
    Insulation / sheath PVC / white PVC
    Rated voltage 300/500 V
    Conductor temperature Up to +70 °C continuous, up to +160 °C during a short circuit
    Ambient temperature In service −30…+70 °C, installation −5…+40 °C
    Minimum bending radius ≥ 5 × cable diameter
    Cable diameter (manufacturer data) 15.98 mm
    Current rating (indicative) about 46–57 A to IEC 60364-5-52 (3 loaded cores, +30 °C, installation methods B2–C)
    Typical protection 40 A circuit breaker – up to ~27.7 kW (three-phase 400 V without neutral, cos φ = 1)
    Circuit length (ΔU ≤ 3 %) up to ≈ 75 m at 40 A load
    Installation Indoors: in walls, under plaster, in conduits, trunking, surface-mounted
    Sales unit 1 metre
    ⚠ Check: values are indicative. Grouped cables, cables in thermal insulation or at higher temperatures have a lower rating. Protection follows IB ≤ In ≤ Iz; the final decision rests with the electrical design.

    Key functions

    • Power transmission – three-phase 400 V without neutral up to ~27.7 kW with 40 A protection.
    • Solid class 1 conductors – reliable contact in screw and push-in terminals.
    • Colour-coded cores – L1, L2, L3, PE – no neutral N, faster and safer connection.
    • PVC insulation and sheath – double protection for indoor installation.
    • Sold by the metre – less waste and a more accurate estimate.

    How does it differ from similar cables?

    • NYM-J 4×6 mm² – smaller cross-section – about 34–41 A, for lighter loads or shorter runs.
    • CYKY-L cable – black, also for outdoor and underground use with protection; NYM-J is for indoor use only.

    Where is it used?

    • Three-phase motors – machine tools, fans.
    • Pumps and compressors – without neutral.
    • Three-phase heaters – delta-connected.
    • Plant rooms – where the cable runs indoors.

    Use by need

    Workshop owner.
    Supply to a three-phase motor, pump or compressor without neutral.
    Automation installer.
    Power lines from the board to three-phase drives indoors.
    Maintenance team.
    Replacing existing three-phase load cables with the same type.

    Practical example

    For example, a three-phase compressor motor that needs no neutral has to be connected in a workshop. NYM-J 4×10 mm² with 40 A protection is suitable if the motor current and starting conditions match the protection and the run is no longer than ≈ 75 m.

    Pros

    • Solid copper conductors – hold their shape and terminate reliably.
    • White sheath – neat appearance for surface installation.
    • Made by Lietkabelis – established Lithuanian manufacturer with clear technical data.
    • Sold by the metre – pay only for the length you need.

    Cons / limitations

    • Not for direct burial or unprotected outdoor use – choose CYKY-L for that.
    • Not for portable equipment – solid conductors are not made for repeated flexing.
    • PVC insulation – where halogen-free cables are required, choose NHXMH-J.
    • No neutral N – for single-phase loads choose a 5-core cable.

    Safety and installation notes

    • Before work, isolate the supply, secure it against switching on and verify that no voltage is present.
    • Run cables in walls vertically and horizontally – so they aren't drilled later.
    • Strip cores with a proper tool without nicking the copper.
    • Before energising a new circuit, measuring insulation resistance is recommended.
    • Installation must be carried out by a qualified electrician.
    • 4×10 is not a single 40 mm² conductor.
    • The cable is not chosen by the breaker alone – installation method and circuit length are checked too.

    Quick selection guide

    Choose NYM-J 4×10 mm² for a three-phase 400 V load without neutral.

    4 × 10 mm²
    300/500 V
    40 A
    Indoors
    Suitable when you need:
    • a three-phase load without neutral;
    • protection by a 40 A circuit breaker;
    • a run of up to ≈ 75 m at 40 A load.
    Check before ordering:
    • that the load and breaker match the 4×10 mm² cross-section;
    • that the circuit is no longer than ≈ 75 m at 40 A load;
    • that the cable will be installed indoors;
    • that you order enough length for connection.
    Important reminder: The 4×10 mm² designation alone does not define the maximum current or power. Choose the cable by load, installation method, circuit length and protective device.

    FAQ – frequently asked questions

    What is the difference between NYM-J and KH05VV-U?
    It is the same cable type: NYM-J is the common designation, KH05VV-U is the Lietkabelis product designation.
    Does 4×10 mean a total cross-section of 40 mm²?
    No. These are 4 separate 10 mm² cores.
    Can it be laid outdoors or underground?
    No. NYM-J is for indoor use; outdoors and underground choose CYKY-L, underground with mechanical protection and warning tape.
    Do you sell by the metre?
    Yes, the sales unit is 1 metre; for project quantities we prepare a quotation.
    Which circuit breaker should I choose?
    Usually 40 A; finally by load, installation method and circuit length (IB ≤ In ≤ Iz).
    Can it be installed under plaster?
    Yes, NYM-J is intended for installation in walls, under plaster, in conduits and trunking indoors.

    Copper installation cable NYM-J | 4×10 mm² | 300/500 V | white | 1 m | Lietkabelis KH05VV-U 4G10

    NYM-J 4×10 mm² (KH05VV-U 4G10) – white Lietkabelis copper cable with four solid conductors (L1, L2, L3, PE) for three-phase loads without neutral. Sold by the metre.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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