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- CCTV & Security
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Brand: Helukabel
Helukabel NYY-J PVC 0.6/1 kV Power Cable
Description
The Helukabel NYY-J is the standard PVC-insulated, PVC-sheathed 0.6/1 kV power and control cable for fixed installation. Copper conductors, PVC core insulation (DIV4) and a black PVC outer sheath (DMV5) make it a general-purpose feeder cable for plant, distribution boards and building services. NYY-J carries a green-yellow protective conductor from three cores up; NYY-O has none. Part numbers are listed separately for the J and O versions.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | NYY-J / NYY-O and (N)YY-J / (N)YY-O, 0.6/1 kV |
| Standard basis | NYY-J / NYY-O acc. to DIN VDE 0276-603 / HD 603 S1 / IEC 60502; 7 cores and above acc. to DIN VDE 0276-627 / HD 627 S1 |
| Nominal voltage | U0/U 0.6/1 kV; test voltage 4 kV |
| Temperature range | Flexing -5 °C to +50 °C; fixed installation -40 °C to +70 °C; conductor operating temperature +70 °C |
| Short-circuit temperature | Max. 5 s: up to 300 mm² +160 °C; above 300 mm² +140 °C |
| Minimum bending radius | Single-core 15x outer diameter; multi-core 12x outer diameter |
| Conductor | Bare copper, single-wire or multi-wire, DIN VDE 0295 class 1 or 2 / IEC 60228 |
| Core insulation | PVC, compound type DIV4 acc. to HD 603 S1 |
| Core identification | DIN VDE 0293-308 / 0276-603; 3+1/2 J-version GN-YE (1/2), BN, BK, GY; O-version BU (1/2), BN, BK, GY |
| Outer sheath | PVC, compound type DMV5 acc. to HD 603 S1, black |
| Fire behaviour | Flame-retardant to DIN EN 60332-1-2 |
| Highest permissible voltage | DC conductor/conductor 1.8 kV, conductor/earth 0.9 kV; AC single-phase 1.4 kV (both outer conductors insulated) or 0.7 kV (one earthed); three-phase 1.2 kV |
Application and limits
Helukabel states that power cables of this type can be installed in open air, underground, in water, in concrete, indoors and in cable ducts, in power stations, industry and distribution boards and in subscriber networks, where mechanical damage is not to be expected. The sheath is unarmoured, so where there is a risk of mechanical damage, routes should use trays with covers, conduit, or an armoured cable type. The cable is cadmium-free and silicone-free.
NYY is flame-retardant but not halogen-free. In enclosed public areas where low smoke is specified, the N2XH halogen-free type is the usual alternative, and for circuit integrity in a fire a FE 180 type is required. Check the cable gland range: for unarmoured cable, a gland such as the CMP A2F for unarmoured cable matches this construction.
Sizes
| Part no. (J type / O type) | Cores x mm² | Outer diameter mm (approx.) | Weight kg/km (approx.) |
|---|---|---|---|
| 32001 / 32089 | 1 x 4 re | 8.1 | 115 |
| 32005 / 32093 | 1 x 25 rm | 13.7 | 360 |
| 32009 / 32097 | 1 x 95 rm | 19.0 | 1110 |
| 32023 / 32111 | 3 x 1.5 re | 11.5 | 195 |
| 32025 / 32113 | 3 x 4 re | 14.0 | 340 |
| 32029 / 32117 | 3 x 25 rm | 24.0 | 1320 |
re is a round single-wire conductor and rm a round multi-wire conductor. Sizes continue to 400 mm² for single-core builds.
Documents and quotation
The Helukabel data sheet is attached (dated 14.06.2024). Seven Star LLC supplies Helukabel cables in Oman against the part number. Quote the core count, cross-section, J or O version and length, together with the project cable standard. See also the electrical and power category.
Datasheets & Documents
- Datasheet HELUKABEL NYY-J data sheet (PDF, 14.06.2024) Download
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About brand
HELUKABEL is the German manufacturer and supplier of cables, wires and cable accessories, with a range that covers control, power, data, fire-resistant and drag-chain cables. Helmut Luksch and his wife founded the company in 1978 in Hemmingen, near Stuttgart. The name combines the first letters of his first and last name (HElmut LUksch) with the word for cable (Kabel). It has made its own cables since 1988.
Seven Star LLC is an independent supplier in Muscat. We list HELUKABEL control, power, VFD, data and fire-resistant cables and supply them to contractors, panel builders and plants in Oman and the GCC by type, cross-section and length.
HELUKABEL at a glance
| Established | 1978, Hemmingen near Stuttgart, Germany, by Helmut Luksch |
|---|---|
| Manufacturing | Own production since 1988, starting at the Windsbach plant |
| Product families | Control and power cables, screened VFD motor cables, data and bus cables, fire-resistant and halogen-free cables, flexible rubber and welding cables, cable glands and accessories |
| Ownership | Family-owned, managed by the Luksch family |
HELUKABEL cables we list
| Cable | Type | Typical use |
|---|---|---|
| JZ-500, JZ-500 HMH, JZ-600-Y-CY | Control cables | Wiring of machines and panels; HMH is halogen-free, Y-CY is screened |
| NYY-J, N2XH-J | 0.6/1 kV power cables | Power distribution; N2XH-J for buildings where halogen-free cable is required |
| TOPFLEX-EMV-3-PLUS, TOPFLEX-EMV-UV, TOPFLEX 611-C-PUR | Screened motor cables | Connecting motors to variable speed drives and servo drives with low interference |
| (N)HXH-FE 180/E 90, JE-H(St)H Bd FE 180 | Fire-resistant cables | Safety circuits, fire alarm systems and emergency power that must keep working in a fire |
| PAAR-TRONIC-CY, SUPER-PAAR-TRONIC-C-PUR, OZ-BL-CY | Signal and instrument cables | Measurement signals, drag chains, and blue-sheathed intrinsically safe circuits |
| H07RN-F, H01N2-D | Rubber cables | Mobile equipment, temporary power and arc welding |
The code on a European cable describes its build. In NYY-J, N means a standard type, Y a PVC insulation and sheath, and J a green-yellow earth core. In N2XH, 2X is XLPE insulation and H a halogen-free sheath. A C or CY in the name marks a copper braid screen. FE 180 and E 90 are the fire tests: insulation integrity for 180 minutes and circuit function for 90 minutes as an installed system.
Where HELUKABEL cables are used
In Oman and the GCC, HELUKABEL cables are used in oil and gas and process plants, motor control centres and VFD installations, building fire alarm and life safety systems, machinery and cranes, and water and power infrastructure.
Ordering HELUKABEL cables: what we need
Send the cable type, the number of cores and cross-section (for example 4G2.5 or 3x150+70), the length, and whether you need a specific standard or certificate. For fire-resistant cables, add the required test (FE 180, E 30 or E 90).
Facts checked against HELUKABEL company history, October 2026.
Browse Helukabel products by category: Industrial Cables, Welding Accessories & Safety.
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Frequently Asked Questions
N is a standard-type VDE cable, Y is PVC insulation, the second Y a PVC sheath, and J a green-yellow protective conductor. NYY-O has no protective conductor.
U0/U 0.6/1 kV with a 4 kV test voltage.
The data sheet lists open air, underground, water, concrete and cable ducts as installation locations where mechanical damage is not expected.
No. It has a PVC sheath and is listed as flame-retardant to DIN EN 60332-1-2; for halogen-free use see N2XH.
Permissible operating temperature at the conductor is +70 °C.

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