Transformer Substations

12 kV Prefabricated Container Box Substation

A factory-custom, outdoor prefabricated container box substation for 12 kV compact distribution, stepping 12 kV down to 400 V.

A factory-custom, outdoor prefabricated container box substation for 12 kV compact distribution, stepping 12 kV down to 400 V. The IP54 corrugated-steel container integrates switchgear, transformer and low-voltage equipment into a single weatherproof, transportable unit ready for fast on-site installation.

  • Factory-customized, prefabricated container design
  • 12 kV input to 400 V output for compact distribution
  • IP54 protection with corrugated-steel container enclosure
  • Transportable, plug-and-play complete substation
  • Copper or aluminium windings; IEC / GB compliant; ISO9001 certified
Input Voltage12 kV
Output Voltage400 V
Frequency50 / 60 Hz
PhaseThree Phase
Winding MaterialCopper / Aluminium
Protection ClassIP54
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Lead time typically 25–45 days after drawing approval · FAT welcome · Ships worldwide (EXW / FOB / CIF / DAP)

Technical specifications

Specifications of 12 kV Prefabricated Container Box Substation
ParameterValue
TypePrefabricated Container Substation
Input Voltage12 kV
Output Voltage400 V
Protection ClassIP54
PhaseThree Phase
Frequency50 / 60 Hz
Winding MaterialCopper / Aluminium
Vector GroupDyn11 / Yyn0
StandardIEC / GB
CertificationISO9001
PackagingWooden Case
12 kV Prefabricated Container Box Substation — specification and nameplate detail
Specification and nameplate detail

Specifications are based on the standard configuration. Final ratings, dimensions, materials and packaging are confirmed on the approved drawing and order confirmation.

Features and construction

  • Corrugated-steel container body for structural strength and weather protection
  • Multiple hinged access doors with cam-lock lever handles for secure closure
  • IP54-rated enclosure suited to outdoor and new-energy site conditions
  • Prefabricated complete substation for rapid deployment and relocation
12 kV Prefabricated Container Box Substation — construction and materials detail
Construction and materials detail
12 kV Prefabricated Container Box Substation — internal structure
Internal structure
12 kV Prefabricated Container Box Substation — workmanship detail
Workmanship detail
12 kV Prefabricated Container Box Substation — safety and protection features
Safety and protection features

Typical applications

New-energy sites, industrial parks, construction and infrastructure projects, and outdoor compact distribution.

12 kV Prefabricated Container Box Substation — typical application
Typical application

Customisation options

Enclosure colour, capacity, voltage ratio, switchgear scheme, winding material, and door configuration available on request.

12 kV Prefabricated Container Box Substation — dimensions and layout
Dimensions and layout
12 kV Prefabricated Container Box Substation — customisation options
Customisation options

Ordering information

Built to order per confirmed specifications. Please provide capacity, voltage ratio and site requirements when enquiring.

Product images are illustrative renders for marketing reference; final delivered product is built to order per confirmed specifications.

Standards and quality

Manufactured under an ISO 9001, ISO 14001 and ISO 45001 certified management system. Designs follow the IEC 60076 / IEC 62271 series as applicable, with ANSI/IEEE, GB and GOST variants available. Every unit passes routine testing before dispatch; type tests and customer or third-party witnessed factory acceptance tests can be arranged.

Frequently asked questions

What voltage ratio is available?

The standard unit is 12 kV input to 400 V output. Voltage ratio, tapping range and vector group can be adjusted to your network; 50 Hz and 60 Hz designs are available.

Which standards and certifications apply?

The product is designed to IEC / GB. MARS operates an ISO 9001 / 14001 / 45001 certified factory and holds CE (ECM), UDEM, EAC and CQC approvals; every unit is routine-tested before dispatch and type or witnessed tests can be arranged.

Can this product be customised?

Enclosure colour, capacity, voltage ratio, switchgear scheme, winding material, and door configuration available on request.

What is the lead time and how is it shipped?

Typical lead time is 25–45 days after drawing approval for distribution equipment and 60–90 days for power transformers and containerised systems. Shipment is by sea from Shanghai on EXW, FOB, CIF or DAP terms with a full document pack.

Enquire about this product

Tell us the rating, voltage ratio, frequency, quantity and destination. A MARS engineer replies with a technical proposal and quotation within one working day.

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