Cable > POWERFLEX® BESS ULTRA 1,8/3kV

POWERFLEX®
BESS ULTRA 1,8/3kV

Extra flexible power cable for BESS
ACCORDING TO: IEC 60502-1.

POWERFLEX® BESS Ultra 1,8/3kV is designed and manufactured for the most demanding and stringent battery energy storage systems and grids installations.

Enhanced flexibility and ease of Installation
Cost-effectiveness
Versatile applications for fixed power installations

Typical applications of
POWERFLEX® BESS ULTRA 1,8/3kV

Select...
Power distribution Module connections AC integration and grid connection

DC main power distribution

POWERFLEX® BESS Ultra 1,8/3kV cables consolidate power from multiple battery racks to the central DC bus. They require a robust design and superior insulation, as well as flame-retardant properties for safety.

Inter-Cell and module connections

POWERFLEX® BESS Ultra 1,8/3kV cables link individual battery cells and modules within the cabinet. They must ensure efficient, safe power transfer and system integrity.

AC integration and grid connection

Cables that connect the battery system's inverter to the facility or utility grid. They must be robust to ensure stable, reliable energy export and grid synchronization.
Power distribution

DC main power distribution

POWERFLEX® BESS Ultra 1,8/3kV cables consolidate power from multiple battery racks to the central DC bus. They require a robust design and superior insulation, as well as flame-retardant properties for safety.
Module connections

Inter-Cell and module connections

POWERFLEX® BESS Ultra 1,8/3kV cables link individual battery cells and modules within the cabinet. They must ensure efficient, safe power transfer and system integrity.
AC integration and grid connection

AC integration and grid connection

Cables that connect the battery system's inverter to the facility or utility grid. They must be robust to ensure stable, reliable energy export and grid synchronization.

Resources for engineers

POWERFLEX® BESS ULTRA 1,8/3kV Technical datasheet Download file
POWERFLEX® BESS ULTRA 1,8/3kV

Technical specifications

Application

Powerflex® BESS Ultra 1,8/3kV is designed and manufactured for the most demanding and stringent battery energy storage systems and grids installations. Its high flexibility makes the installation process substantially easier and, as a result, it is particularly suitable for use in difficult layouts, having a direct impact in installation costs reduction. It can be buried or installed in a tube as well as outdoors without requiring additional protection. This cable can withstand in damp conditions including total submersion in water (AD8).

Construction

Conductor

Copper, class 5 (flexible) up to 150 mm2.

Copper, class 6 (flexible) up to 150 mm2.

Insulation

XLPE.

Natural colour.

Outer sheath

PVC (flexible).
Black colour.

Standards / Compliance

ACCORDING TO: IEC 60502-1.

Standards and approvals

  • CE.
  • RoHS.

Construction Products Regulation

  • Eca

 

Disclaimer
The information displayed on this website is provided for reference purposes only and is not legally binding. Specifications, values, and technical data may be subject to change without notice. To obtain verified and up-to-date technical data for a specific cable, please download Top Cable’s official Technical Specification in PDF format. The PDF document constitutes the sole authoritative source of product data.

 

Characteristics

Electrical performance 1,8/3 (3,6) kV AC 4,5 (5,4) kV DC
Thermal performance Maximum conductor temperature: 90ºC. Maximum short-circuittemperature: 250ºC (max. 5 s). Minimum service temperature: -40ºC (fixed and protected installations). Minimum installation and handling temperature: 0ºC (on cable surface).
Fire performance Flame non-propagation according to EN 60332-1 and IEC 60332-1. Reaction to fire CPR: Eca according to EN 50575. Reduced halogens emission. Chlorine <15%.
Mechanical performance Minimum bending radius during installation: 5x cable diameter (diameter cable ≤ 50 mm). Minimum bending radius during installation: 6x cable diameter (diameter cable > 50 mm). Impact resistance: AG2 Medium severity.
Environmental performance Chemical & Oil resistance: Good. UV Resistant: UNE 211605. Water resistance: AD8 Submersion.
Installation conditions Open Air. Buried. In conduit. In tray.
Other Meter by meter marking.

Why choose our POWERFLEX® BESS ULTRA 1,8/3kV

  • cable icon

    As cable manufacturers, we ensure cost-effective premium quality and lasting performance.

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    Our in-house labs guarantee rigorous cable quality, reliability, and standards compliance.

  • global icon

    Global cable delivery solutions—expert logistics for seamless supply.

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    Full cable stock, ready for fast delivery- shortest lead times.
    Largest European stockholding.

  • EPD icon

    EPD-certified cables: Sustainable manufacturing for your Scope 3 success.

  • client support icon

    Expert, friendly and professional sales team offering a fast & efficient customer service. Global customers are welcome!

Need expert advice, a custom solution, or an RFQ?

FAQ's POWERFLEX® BESS ULTRA 1,8/3kV

For BESS internal wiring we supply flexible cables rated (like BESS Ultra 1,8/3kV) for the high-current DC bus voltages (up to 1500V DC), with LSZH fire-non propagator outer sheaths to limit fire spread within battery enclosures.

Yes. We have an experienced project supply team capable of managing phased cable deliveries to site, full technical submittals for engineering approval, and drum tracking for large utility-scale projects.

The inverter-to-grid AC side uses LV or MV power cable. Top Cable’s POWERFLEX® BESS Ultra 1,8/3kV, POWERFLEX® RV-K, POWERHARD®  armoured or X-VOLT®  MV connect to the grid.

BESS combines 1500 V DC strings, AC inverter feeds and MV grid ties. Top Cable’s DC, POWERFLEX®  and X-VOLT®  ranges cover the full chain.

Questions? We’ll help you find a solution.