BESS Sub-Assemblies 10ft Container

Fabricated 10ft container BESS Sub-Assemblies for battery energy storage systems. Supplied as a structurally complete, fitted-out shell ready for battery module and electrical integration. Container body, internal battery rack frame structures, cable tray systems, HVAC and ventilation provisions, fire suppression penetrations, door assemblies, and floor structure are all manufactured and fitted to your BESS integration drawing. Frigate supplies the container sub-assembly.

External Dimensions

3,048 × 2,438 × 2,591 mm (L×W×H)

Internal Clear Dimensions

2,802 × 2,286 × 2,395 mm (nominal; varies by panel type)

Corner Casting Position

ISO 1161 corner castings at all 8 positions

Primary Frame Material

S355JR structural steel (EN 10025); A572 Grade 50 (ASTM A572)

Stacking Load Capacity

86,400 kg total (ISO 1496-1 corner casting stack load)

*First-run lead times include drawing review, fit-out sequence planning, and first article inspection. Re-orders on established programmes run on shorter lead times with retained fabrication fixtures and locked process documentation.

Product Description

The container shell is the structural foundation of the BESS unit. Corner casting positions, floor load rating, and racking load capacity are determined at the fabrication stage. They cannot be corrected after manufacture. Internal rack frame positions, cable tray routes, and penetration sleeve locations are equally fixed once welded. These dimensions are all derived from your battery module layout and electrical integration drawing. Frigate manufactures to that drawing.

Racking Load Resistance

150 kN longitudinal racking per ISO 1496-1

Gross Weight Rating

30,480 kg maximum gross mass

Weld Standard — Steel

AWS D1.1 (structural steel); ISO 3834-2 (quality requirements)

Dimensional Tolerance — Shell

±3 mm on external frame dimensions; ±5 mm on diagonal squareness

Battery Rack Anchor Inserts

M12 / M16 weld-in steel inserts at specified positions

Cable Penetration Sleeves

Intumescent cable transit frames at all cable wall and floor penetrations

IP Rating — Door Seal

IP54 (standard door); IP65 (compressed EPDM perimeter seal)

Surface Preparation

Sa 2.5 blast cleaning per ISO 8501-1 before prime coat application

Environmental Compliance

RoHS 3; REACH SVHC <0.1% w/w; WEEE compliant

Documentation per Shipment

CoC, weld inspection records, paint DFT records, material certs, dimensional check report

Technical Advantages

Internal fit-out covers the battery rack frame structures welded to the container shell, HVAC unit mounting frames, air inlet and outlet aperture reinforcement frames, and internal lighting and service tray provisions. Fire safety fit-out includes fire-rated internal panel installation, fire suppression pipe penetration sleeves, intumescent cable transit frames at all cable wall penetrations, and internal compartment separation walls where required by the OEM’s fire safety design.

Exterior fit-out covers the surface preparation, priming, and topcoat paint system, exterior cable gland plates, and forklift protection corner guards. All fit-out elements are confirmed against the your integration drawing before fabrication begins.

Let's Get Started

Need reliable Enclosure for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Industry Application

Grid-Scale BESS Installations

Modular 10ft container units deployed in arrays at utility-scale grid storage sites. ISO corner casting layout enables twist-lock interconnection and standard transport logistics. Stacking-rated for double-height deployment configurations

Commercial & Industrial Behind-the-Meter

10ft format suits rooftop, carpark, and yard deployments at commercial and industrial facilities where larger container formats exceed available footprint. Floor load rating specified for LiFePO₄ rack dead load at battery module installation density.

Solar-Plus-Storage Hybrid Sites

Container sub-assembly positioned adjacent to solar array inverter stations. HVAC and ventilation provisions specified for the thermal load profile of the battery chemistry and ambient temperature at the deployment site.

Remote & Off-Grid Energy Storage

Self-contained container format for remote telecom, mining, and off-grid rural electrification deployments. ISO 12944 C5 paint system for coastal and high-humidity environments. Forklift and crane-rated for site positioning without permanent lifting infrastructure.

EV Charging Hub Energy Storage

Peak shaving and demand management BESS units co-located with EV charging infrastructure. Explosion relief panel provision for fast-charge adjacent deployments. IP65 door sealing for exposed urban installation environments.

BESS OEM Platform Programmes

Container sub-assembly supply into BESS OEM production programmes where the container shell is manufactured separately from battery module integration. Scheduled release supply with rolling forecast-based production allocation available.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

Solar Inverter Enclosure

units per month

Bento Boxes for D2C Segment

Units Manufactured Monthly

0 +

Defence-Grade Cable Supply

Cost savings

0 %

Flange Assembly for Pump

Faster Production

0 %

Having Doubts? Our FAQ

Our integration drawing isn't finalised. Can Frigate engage before it's fully released?

Yes. Submit the current STEP model or draft layout drawing under NDA. Frigate’s review will flag structural conflicts and fit-out sequence issues before the drawing is released. Changes at draft stage cost nothing; changes after fabrication begins do.

We need 60-minute fire-rated internal panels. Does that affect the internal clear dimensions?

Yes. Fire-rated composite panels are thicker than standard steel panels, reducing internal clear dimensions by 30–50 mm per panelled face. This is confirmed at drawing review stage so battery rack positions are calculated against the actual internal envelope, not nominal dimensions.

Can the container be shipped flat-pack to reduce freight cost?

Partial flat-pack is available for some configurations. Whether flat-pack is feasible depends on the internal fit-out complexity and the access sequence required during assembly. This is confirmed at the drawing review stage with a recommendation on the optimal dispatch configuration for the specific integration design.

We're scaling from 5 units to 50 units per year. What does Frigate need to plan for that?

A rolling 6-month volume forecast shared with Frigate’s production team is what makes that ramp manageable. It drives material procurement, capacity allocation, and structural steel sourcing lead times. Without forward visibility, a 10x volume increase arrives as a queue event rather than a planned production ramp.

What weld documentation does Frigate supply with each container?

Each container ships with a weld inspection record covering all primary structural joints, a dimensional check report against the integration drawing, paint DFT records, material mill certificates, and a Certificate of Conformance. The documentation package format is aligned to your incoming acceptance requirement at programme setup.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Components Built for Critical Performance

Engineered Products for Critical Applications

BESS Sub-Assemblies 10ft Container

Product Description

Racking Load Resistance

Gross Weight Rating

Weld Standard — Steel

Dimensional Tolerance — Shell

Battery Rack Anchor Inserts

Cable Penetration Sleeves

IP Rating — Door Seal

Surface Preparation

Environmental Compliance

Documentation per Shipment

Technical Advantages

Let's Get Started

Industry Application

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

BESS Sub-Assemblies 10ft Container

Get Latest Price

BESS Sub-Assemblies 10ft Container

Get Latest Price