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Three-core cables N2XSEY & NA2XSEY – safe and reliable.
XLPE insulated, copper or aluminum core, PVC sheathed.
Ideal for power distribution up to 36 kV.
IEC/VDE standard 3-core cables for industrial installations.
Durable armoured MV cables – N2XSEY / NA2XSE2Y available.
N2XSEY, NA2XSEY, N2XSE2Y, and NA2XSE2Y are three-core medium voltage power cables designed for fixed installation in power distribution systems up to 12/20(24) kV or 18/30(36) kV. These cables are manufactured in accordance with DIN VDE 0276-620 / IEC 60502-2, ensuring high reliability and safety.
These cables feature copper (N2X…) or aluminum (NA2X…) conductors, XLPE insulation, and a copper wire screen with copper tape for effective electromagnetic shielding and fault current return paths. The difference between SEY and SE2Y lies in the outer sheath:
These cables are UV-resistant, flame-retardant, and suitable for direct burial or installation in ducts, making them ideal for infrastructure, industrial plants, and utility distribution networks.
With continuous operation at 90°C, short-circuit tolerance up to 250°C, and high dielectric strength, these cables offer long service life, low capacitance, and reliable performance under tough environmental and electrical conditions.
| Aspect | Details & Applications |
| Cable Type | N2XSEY / N2XSE2Y: Copper conductorNA2XSEY / NA2XSE2Y: Aluminum conductor |
| Number of Cores | 3 cores – individually insulated and laid up together |
| Conductor Class | Class 2 (stranded), per IEC 60228 |
| Insulation Material | Cross-linked polyethylene (XLPE) – high thermal and electrical performance |
| Inner Sheath | Extruded PE (polyethylene) layer or thermoplastic bedding |
| Screen | Individual copper wire + copper tape screen per core (for electromagnetic shielding and fault path) |
| Armour | None (unarmoured) |
| Outer Sheath | Black PE (polyethylene) or optionally PVC – UV, weather, and moisture resistant |
| Rated Voltage | Typically 6/10 kV, 12/20 kV, or 18/30 kV |
| Operating Temperature | Continuous: 90°C; Short-circuit: up to 250°C |
| Standards | IEC 60502-2, VDE 0276-620, HD 620 S2 |
| Flame Retardance | Flame-retardant according to IEC 60332-1; LSZH versions available |
| Typical Applications | – Medium voltage power distribution in utility, industrial, and infrastructure networks– Suitable for underground installation, cable ducts, or outdoor use without mechanical protection |
| Naming Note | “2Y” indicates double-layer PE sheath, offering enhanced mechanical & environmental protection |
IEC 60502-2
VDE 0276-620
HD 620 S2
| 6-10KV Medium Voltage Three Cor | ||||||||||
| Nom nsulation hickness |
Copper tape thickness |
Copper wire screen area |
Appro.Insulation dia | Nom armor thickness |
Nom sheath thickness |
Appro overall diameter |
Appro weight (kg/km) |
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| （mm） | (mm) | (mm) | (mm) | （mm） | (mm) | (mm) | (mm) | (mm) | CU | AL |
| 25 | 6.05 | 3.4 | 0.1 | 16 | 12.5 | 0.5 | 2.3 | 44 | 3200 | 2700 |
| 35 | 7.1 | 3.4 | 0.1 | 16 | 13.5 | 0.5 | 2.4 | 46 | 3700 | 2000 |
| 50 | 8.25 | 3.4 | 0.1 | 16 | 14.7 | 0.5 | 2.5 | 49 | 4300 | 3400 |
| 70 | 9.9 | 3.4 | 0.1 | 16 | 16.3 | 0.5 | 2.6 | 53 | 5200 | 3900 |
| 95 | 11.7 | 3.4 | 0.1 | 16 | 18.1 | 0.5 | 2.8 | 57 | 6400 | 4600 |
| 120 | 13.1 | 3.4 | 0.1 | 16 | 19.5 | 0.5 | 2.9 | 61 | 7400 | 5200 |
| 150 | 14.3 | 3.4 | 0.1 | 25 | 20.7 | 0.5 | 3 | 64 | 8500 | 5700 |
| 185 | 16.3 | 3.4 | 0.1 | 25 | 22.7 | 0.5 | 3.1 | 68 | 10000 | 6500 |
| 240 | 18.7 | 3.4 | 0.1 | 25 | 25.3 | 0.5 | 3.3 | 74 | 12300 | 7600 |
| 300 | 20.9 | 3.4 | 0.1 | 25 | 27.9 | 0.5 | 3.4 | 79 | 14600 | 8800 |
| 400 | 23.7 | 3.4 | 0.1 | 35 | 31.1 | 0.8 | 3.7 | 87 | 18700 | 11300 |
| Construction data 2XSE2Y/N2XSE2Y,A2XSE2Y/NA2XSE2Y 6/10; 12/20; 18/30 kV | ||||||||
| Number of conductors and nominal cross section |
Thickness of insulation | Thickness of sheath |
Nominal cross section of screen |
Cable diameter approx. | 2XSE2Y, N2XSE2Y |
A2XSE2Y, NA2XSE2Y |
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| Mass of Cu approx. |
Mass of cable approx. |
Mass of Al approx. |
Mass of cable approx. |
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| Nxmm2 | mm | mm | mm2 | mm | kg/km | kg/km | kg/km | kg/km |
| 6/10 kV | ||||||||
| 3×35mm／16 3×50mm／16 |
3,4 3,4 |
2,5 2,5 |
16 16 |
46,4 48,8 |
1010 1363 | 2849 3348 |
298 404 |
2174 2437 |
| 3×70m／16 | 3,4 | 2,7 | 16 | 53,0 | 1968 | 4208 | 584 | 2894 |
| 3×95mm／16 | 3,4 | 2,8 | 16 | 57,1 | 2732 | 5229 | 809 | 3402 |
| 3×120mm／16 | 3,4 | 2,9 | 16 | 60,3 | 3440 | 6108 | 1023 | 3812 |
| 3x150rm/25 | 3,4 | 3,0 | 25 | 64,2 | 4245 | 7287 | 1257 | 4449 |
| 3×185mm／253×240rm／25 | 3,4 3,4 |
3,2 3,4 |
25 25 |
68,5 74,3 |
5311 6981 | 8632 10690 |
1579 2071 |
5086 6027 |
| 3×300mm／25 | 3,4 | 3,5 | 25 | 79,6 | 8661 | 12766 | 2589 | 6999 |
| 12/20 kV | ||||||||
| 3×35mm／16 | 5,5 | 2,8 | 16 | 56,7 | 1010 | 3714 | 298 | 3038 |
| 3×50mm／16 3×70mm／16 |
5,5 5,5 |
2,9 3,0 |
16 16 |
59,3 63,3 |
13631968 | 4259 5153 |
404 584 |
3349 3839 |
| 3×95rm／16 3×120mm／16 |
5,5 5,5 |
3,1 3,2 |
16 16 |
67,4 70,6 |
2732 3440 | 6226 7162 |
809 1023 |
4399 4866 |
| 3x150rm/25 | 5,5 | 3,4 | 25 | 74,7 | 4245 | 8439 | 1257 | 5601 |
| 3×185rm／25 | 5,5 | 3,5 | 25 | 78,8 | 5311 | 9830 | 1579 | 6284 |
| 3×240mm／25 | 5,5 | 3,7 | 25 | 84,5 | 6981 | 11998 | 2071 | 7334 |
| 18/30 kV | ||||||||
| 3×50mm／16 | 8,0 | 3,3 | 16 | 71,7 | 1363 | 5505 | 404 | 4596 |
| 3×70m／16 | 8,0 | 3,4 | 16 | 75,8 | 1968 | 6480 | 584 | 5167 |
| 3×95mm／16 | 8,0 | 3,5 | 16 | 79,8 | 2732 | 7651 | 809 | 5824 |
| 3×120m／16 | 8,0 | 3,7 | 16 | 83,3 | 3440 | 8665 | 1023 | 6369 |
| 3x150rm/25 | 8,0 | 3,8 | 25 | 87,1 | 4245 | 10019 | 1257 | 7181 |
Huili Cable Co., Ltd. (formerly Luohe Huili Cable Co., Ltd. and Luohe Cable Factory) was founded in 1989 and was renamed Huili Cable Co., Ltd. on September 14, 2024. The company's registered capital is RMB 200 million.
