Higher current in less copper
High-purity copper conductors with a high current density carry the same load as multi-splicing cable assemblies while using less copper and fewer joints.
Power distribution materials · Kunshan, China
High-current flexible cable that replaces bus duct
From 200 A to 6,300 A, YSN sizes and supplies flexible cable, busbar and busway for power-distribution routes. Send your load, voltage and route for a technical selection and quotation, typically within one working day.
- IP68 protection
- 105 °C conductor
- 200 – 6,300 A
- AC and DC
Why flexible cable
Four reasons projects switch from bus duct and multi-splicing cable
Fast to install, easy to re-route
Flexible and light enough for one-piece long runs. Cables can be cut and re-terminated on site, and branches can be added without reworking the whole route.
Built for hard environments
IP68 protection, moisture and water resistance, full insulation and sheath coverage, and no induced voltage on the outer sheath.
Cooler running, longer life
Good heat dissipation keeps the temperature rise low, which means less line loss and a smaller energy bill than conventional bus duct.
Product range
One supplier for the whole high-current route
One supplier for the busbars, cables and accessories that carry high current between transformers, switchgear, converters and loads.
Flagship
High-Current Flexible Cable
A flexible cable system that replaces multi-splicing cable assemblies and dense bus duct on 200 A to 6,300 A routes.
- 200 A – 6,300 A, AC and DC
- 0.6/1 kV up to 8.7/15 kV, plus DC 3 kV and below
- IP68, 105 °C conductor temperature
New Energy Cable
Power cable with a copper-alloy conductor in place of copper: selected, sized and installed exactly like the copper cable it replaces.
- The copper model plus one letter A
- 0.6/1 kV up to 26/35 kV
- About 10% more current than the copper cable
Graphene Busbar
Lightweight busbar with a graphene-aluminium composite conductor: about one third the density of copper, and more economical than copper busbar.
- About one third the density of copper
- More economical than copper busbar
- Corrosion and oxidation resistant
Power Busway
Aluminium-based and copper-based busbar trunking for the main low-voltage distribution inside plants and buildings, up to 5,000 A.
- Aluminium-based or copper-based conduit
- 160 A to 5,000 A at 660 V / 380 V
- IP54 insulated protection type
Laminated Flexible Busbar
Insulated laminated busbar built from thin copper plates, for tight spaces inside cabinets, converters and battery racks.
- 7 mm² to 1,200 mm²
- PVC or TPE insulation, UL94 V-0
- 600 Vac / 750 Vdc and 1000 Vac / 1500 Vdc
Special Cables & Grounding Wire
Drag-chain cable for continuous flexing on moving machinery, and through-type grounding wire for railway and plant earthing.
- Bending life ≥ 5,000,000 cycles
- Unshielded, braided and twisted screened
- S-DH grounding wire, 35 and 70 mm²
Flagship product
One cable instead of a bus duct run
The high-current flexible cable is a laminated copper conductor with insulation, armour and an outdoor-grade sheath. It is delivered in one piece for a whole route, cut and re-terminated on site, and branched with a T-connector while the main circuit stays live.
- More than 33% overload capacity at 40 °C ambient, against about 15% for conventional bus duct
- Consistent resistance along the run, so phases share current evenly and run cooler
- Up to 20% lower energy consumption than a dense bus duct of the same duty
- Bend radius from 200 mm, laid in trench, conduit, tray or direct burial
200 – 6,300 A
Current range of our high-current flexible cable
IP68
Protection level, suitable for buried and outdoor routes
105 °C
Maximum conductor operating temperature
7
Industries we supply: charging, storage, PV, wind, plants, chemicals, data centres
Applications
Where our cable is installed
High current moves between the same four places in most projects: the transformer, the switchgear, the converter and the load. These are the seven situations our customers ask us to solve most often.
EV Super Charging Stations
Get power from the distribution room to the dispensers without a bus duct run
Energy Storage Systems
High current inside a small footprint
Photovoltaic Plants
Outdoor routes that survive sun, water and time
Wind Power
Flexible enough for the tower, tough enough for the coast
Industrial Buildings and Parks
Rework the layout without cutting the supply
Chemical and Process Parks
Routes that can be inspected, cleaned and repaired
Data Centres and IDC Rooms
High current in the tightest part of the building
Not listed?
Tell us your load and site conditions and we will size the route.
See all applicationsHow it works
From site condition to shipment in four steps
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1
Tell us the load
Current, voltage, route length, laying method and site conditions — a photo or drawing is enough to start.
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2
Get a technical proposal
We size the conductor, connectors and accessories, and send a quotation with drawings for confirmation.
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3
Production and inspection
Cables are produced to order on our partner lines and inspected before packing.
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4
Export packing and documents
Drum or coil packing suitable for sea freight, with commercial invoice, packing list and certificate of origin.
Quality
Produced under systems your buyer can check
Orders are produced under management systems that cover quality, environment, safety and measurement.
- ISO 9001 — Quality management
- ISO 14001 — Environmental management
- ISO 45001 — Occupational health & safety
- ISO 50001 — Energy management
- ISO 10012 — Measurement management
- GB/T 36132 — Green factory
- GB/T 29490 — Intellectual property
- GB/T 27922 — After-sales service
FAQ
Questions buyers ask before the first order
Is this the same product as bus duct?
No. Bus duct is a rigid, factory-assembled enclosure. Our flexible cable is a laminated conductor with insulation and a sheath, supplied on a drum, cut and terminated on site. It does the same job on high-current routes, but it can be reworked and it does not need the same installation space.
How do I know which size to order?
Send us the load in amps or kVA, the voltage, the route length, the laying method and the ambient temperature. We will select the conductor, confirm the voltage drop and short-circuit rating, and send a drawing for approval before production.
What is the lead time?
Standard sizes ship in two to four weeks after drawing approval, depending on quantity and sheath requirements. Air and sea options are both available, and we will quote the freight with the goods.
How is the cable packed for export?
Long runs go on steel or wooden drums, shorter lengths in coils with protective wrapping. Drums are braced for sea freight and marked to your instruction. Each shipment includes the commercial invoice, packing list, test data and, where applicable, a certificate of origin.
Can you supply from our drawing?
Yes. Bend radius, hole pattern, conductor profile, core arrangement, sheath colour and marking can all be made to your drawing. Send the file with your enquiry and we will confirm feasibility and tooling before the order.
Send us the load and the route
Tell us the current, voltage, route length and laying method. You will have a specification, a drawing and a price within one working day.