Professional cable manufacturer
TÜV 2 PfG 2693 based construction
1500V ESS Energy Storage Cable
Flexible tinned-copper DC cable for battery racks, battery containers and PCS connections in utility, C&I and residential BESS projects.
1500V DC
Rated Voltage
+125°C
Conductor Temp.
Class 5
Flexible Stranded
2.5–95mm²
Cross Sections
↓ Download Datasheet (PDF)
Sample orders available
MOQ 1,000 m
Lead time 10–20 days
OEM colors & packing
1500V ESS CABLE
TÜV 2 PfG 2693BESS cable specification
EN / IEC 60228Class 5 conductor
XLPO + LSZHInsulation & sheath
IEC 60332-1-2Flame performance
−40°C … +125°COperating range
Key Specifications
The essentials, at a glance
Everything a project engineer checks first — before diving into the full datasheet below.
1500V DC
Rated voltage
Class 5
Flexible tinned Cu
XLPO
Insulation
LSZH
Sheath options
2.5–95mm²
10 cross sections
Black / Orange
+ custom colors
Product Overview
Built for battery energy storage systems
The 1500V ESS Energy Storage System Cable is designed for electrical power connections in battery energy storage systems (BESS) — battery racks, battery containers and power conversion system (PCS) connections. The cable is based on the TÜV 2 PfG 2693 requirements for electric cables connected to battery energy storage systems.
Tinned copper Class 5 flexible stranded conductors combined with XLPO insulation provide the flexibility required for battery and power-electronics connections, while supporting conductor temperatures up to +125°C for the specified cable design.
For BESS environments, the cable can be supplied with halogen-free, low-smoke and chemically resistant LSZH construction. Depending on the selected construction and certification scope, environmental performance can include resistance to battery-related chemicals, oil and outdoor exposure.
Compared with conventional photovoltaic cables, an ESS cable is selected around battery-system requirements: thermal conditions, flexible routing, battery-environment exposure and high-voltage DC transmission. SORIVO supplies different cross-sections, colors and configurations for residential, commercial and utility-scale BESS projects.
More about the manufacturer: About SORIVO →
Key Features
Eight features that matter in a BESS project
TÜV 2 PfG 2693
Designed around the TÜV 2 PfG 2693 requirements specifically developed for cables connected to battery energy storage systems.
1500V DC Capability
Up to 1500V DC rating supports high-voltage BESS architectures and modern battery energy storage power connections.
Flexible Tinned Copper Conductor
Class 5 flexible stranded tinned copper provides flexibility for battery-rack routing and connection work while improving corrosion resistance.
125°C Conductor Rating
The specified XLPO construction supports a maximum conductor operating temperature of up to +125°C.
XLPO Insulation
Cross-linked polyolefin insulation provides the thermal and electrical performance required for high-voltage DC energy storage connections.
LSZH & Chemical-Resistant Options
Low-smoke, halogen-free and chemical-resistant constructions are available where required by the project specification and certification scope.
Wide Cross-Section Range
Available sizes from 2.5mm² to 95mm² support different BESS connection and power-distribution requirements.
Flexible BESS Applications
Suitable for battery racks, battery containers, PCS connections and other energy-storage power connections, subject to final system design.
Applications
Where this cable goes in a storage project
From utility-scale containers to residential battery walls — same construction philosophy, project-specific certification scope.
01
Utility-Scale BESS
Rack and container interconnections in grid-scale battery storage plants.
02
Commercial & Industrial ESS
Battery-to-PCS and DC distribution wiring for C&I storage cabinets.
03
Residential Battery Storage
Wall-mounted battery systems and hybrid inverter DC connections.
04
Battery Racks & Containers
Flexible routing inside racks and containers, tight bends and cabinet entry.
05
Battery-to-PCS Connections
High-current DC links between battery banks and power conversion systems.
06
Solar + Storage Systems
DC cabling for hybrid PV plants where storage and generation share infrastructure.
07
EV Charging + Storage
Buffered DC bus cabling in charging stations with integrated battery storage.
08
Microgrid, UPS & Backup
Off-grid storage, industrial battery banks and UPS backup power circuits.
Technical Specifications
Full specification sheet
The complete parameter set — the same data our engineers quote from.
| General Information | |
| Product Name | 1500V ESS Energy Storage System Cable |
| Primary ESS Standard | TÜV 2 PfG 2693 — Requirements for Electric Cables Connected to Battery Energy Storage System |
| Rated Voltage | Up to 1500V DC |
| Cable Structure | Single-core cable; multi-core configurations available according to project requirements |
| Conductor | |
| Conductor Material | Tinned copper, providing corrosion resistance and suitable flexibility for BESS connections |
| Conductor Type | Class 5 flexible stranded conductor, according to applicable EN/IEC 60228 requirements |
| Cross Sections | 2.5mm², 4mm², 6mm², 10mm², 16mm², 25mm², 35mm², 50mm², 70mm², 95mm² |
| DC Resistance at 20°C | According to the applicable conductor standard and specific cable cross-section |
| Insulation & Sheath | |
| Insulation Material | XLPO (cross-linked polyolefin) |
| Sheath / Jacket | LSZH construction, with oil and chemical resistance according to the applicable cable construction and test scope |
| Jacket Colors | Black standard / Orange / Custom colors available |
| Halogen-Free | Available with halogen-free construction according to the applicable test requirements |
| Low Smoke | Available with low-smoke construction according to the applicable test requirements |
| UV Resistance | Available according to the specified cable construction and applicable certification scope |
| Electrical Ratings | |
| Rated Voltage (DC) | Up to 1500V DC |
| Finished Cable Voltage Test | For 1500V DC cable construction: 6.8 kV AC / 5 min, no breakdown, according to 2 PfG 2693/03.23 requirements |
| Long-Term DC Withstand Test | For 1500V DC cable construction: 1.5 kV applied for 240 h, no breakdown, according to 2 PfG 2693/03.23 requirements |
| AC Voltage Rating | Not specified in this product summary; confirm the applicable AC rating from the exact cable construction and certification |
| Temperature & Environmental | |
| Temperature Rating | Down to −40°C; maximum conductor operating temperature up to +125°C for the specified XLPO construction |
| Maximum Conductor Temperature | +125°C |
| Battery Acid Resistance | Suitable for BESS environments where the specified cable construction meets the applicable chemical-resistance requirements |
| Oil / Chemical Resistance | Available according to the tested cable compound and certification scope |
| Flame Performance | IEC 60332-1-2 or other applicable flame-performance requirements according to the certified construction |
| Minimum Bend Radius | According to cable construction and installation requirements; please confirm the value for the selected cable size |
| Packaging & Logistics | |
| Packaging | Wooden drum / coil / reel / custom packaging per request |
| Standard Length | 100m / 200m / 500m / 1000m per roll, customizable |
| MOQ | 1,000 meters; sample orders negotiable |
| Lead Time | 10–20 working days; stocked sizes may be available sooner |
Final cable selection should be based on system voltage, continuous current, short-circuit conditions, installation method and applicable local requirements. Our engineers confirm the exact construction and certification scope with your project data.
Certificates & Standards
Verify before you buy — we make it easy
TÜV 2 PfG 2693
Requirements for electric cables connected to battery energy storage systems — the dedicated BESS cable specification this product is designed around. Certificate scan available on request.
Request certificate copy →EN / IEC 60228 Class 5
Flexible stranded conductor class per the applicable EN/IEC 60228 requirements — verified for every production batch.
Request test report →IEC 60332-1-2 Flame Test
Flame performance per IEC 60332-1-2 or other applicable requirements according to the certified construction.
Request test report →
Transparency note: certification status and exact scope should always be confirmed against the certificate for the selected cable construction. We provide the certificate scan and test reports with every quotation — no blank promises.
Quality & Factory
Made in a real cable factory, tested before it ships
Every drum of ESS cable is produced under controlled processes and released against the applicable standard requirements.
- 1Incoming material control — tinned copper conductor and XLPO/LSZH compounds checked before production.
- 2In-line process monitoring — insulation diameter, eccentricity and conductor dimensions tracked during extrusion.
- 3Routine electrical tests — spark test and finished-cable voltage test per the applicable requirements.
- 4Batch documentation — test records kept per production batch, available with your order.
19+
countries served
60+
storage & solar projects
100%
routine test before shipment
How to Order
From inquiry to loaded drum in 5 steps
Send Inquiry
Tell us cross-section, color, quantity and destination market.
Confirm Construction
We confirm construction, certification scope and quotation within one working day.
Sample Evaluation
Sample for qualification — stocked sizes within a few working days.
Bulk Production
10–20 working days lead time with batch test documentation.
Delivery & Support
Wooden drum packing, shipping documents and after-sales support.
FAQ
Questions buyers ask before ordering
An ESS energy storage cable is designed specifically for electrical connections in battery energy storage systems. TÜV 2 PfG 2693 is a TÜV Rheinland specification specifically addressing cables connected to battery energy storage systems, while UL 4703 is a photovoltaic wire standard. The appropriate cable should be selected according to the battery environment, voltage, temperature, mechanical conditions and certification requirements of the application.
The cable can be suitable for outdoor BESS installations when the selected construction has the required UV, temperature, moisture and environmental performance. Outdoor use should always be checked against the exact cable construction, certification scope and installation method. Direct burial or installations exposed to severe mechanical conditions may require additional protection.
Common BESS cable sizes include 4mm² to 35mm² for many battery interconnection applications, while larger sizes such as 50mm² to 95mm² may be used for higher-current connections. Final cable sizing should consider continuous current, ambient temperature, installation method, voltage drop, short-circuit requirements and allowable conductor temperature.
The relevant TÜV specification for electric cables connected to battery energy storage systems is 2 PfG 2693. TÜV Rheinland describes 2 PfG 2693 specifically as a requirements specification for cables connected to battery energy storage systems. The certification status and exact scope should be confirmed against the certificate for the selected SORIVO cable construction.
No. UL Solutions identifies UL 4703 as the Standard for Photovoltaic Wire. It may be relevant to an ESS cable when the specific cable construction is separately certified to UL 4703, but UL 4703 should not be described as the dedicated BESS cable standard.
Yes. SORIVO can arrange sample orders for qualification and project evaluation. Sample availability and lead time depend on the required cross-section, construction, color and current stock. Standard stocked sizes may be available within a few working days, while customized constructions may require additional production time.
Need a sample for your BESS project?
Tell us the cross-section and quantity — we reply within one working day.
Get a Free Quote
Send your BESS cable requirement
The more detail you give, the faster and more accurate our quotation. Our engineers reply within one working day.
- Cross-section (e.g. 25mm²) and quantity (meters)
- Jacket color and packing preference
- Project type: utility / C&I / residential BESS
- Destination market (for certification scope)
- Sample request, if needed
Inquiry received
Thanks — our engineers will reply within one working day.
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