1000 kVA 3-Phase Padmount Transformer: 12000 D to 415 Y/ 240
This oil-filled, tamper-resistant 3-phase pad mount transformer is designed for reliable outdoor operation in commercial applications, with a robust welded steel tank, protective bushings, and an externally operated tap changer for voltage adjustment. Available in your choice of copper or aluminum windings and filled with either mineral oil or FR3® fluid, this transformer can be configured to match your exact needs. Multiple primary voltage and secondary voltage options are offered (see dropdown), making it easy to integrate into a variety of distribution systems. All units are designed and tested to meet or exceed ANSI, IEEE, and NEMA standards.
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Product Details
Specifications
This oil-filled, tamper-resistant pad mount transformer is designed for reliable outdoor operation in commercial applications, with a robust welded steel tank, protective bushings, and an externally operated tap changer for voltage adjustment.
free shipping
Giga offers free shipping within the contiguous United States on in-stock transformers, with most orders processed within 1 to 2 business days. International shipping options are available upon request.
Manuals and documentation
Complete submittal drawings, user manuals, and specification sheets are available to support engineering review and installation planning.

Availability and lead time guidance
Availability for a 1000 kVA transformer depends on primary voltage, secondary voltage, and utility specifications. Standard commercial configurations may offer accelerated lead times, while custom voltage combinations or impedance requirements typically require additional production time.
For accurate pricing and schedule confirmation, request a quote. Our team will promptly review your project details to confirm availability or build timelines.
FAQs
Find answers to frequently asked questions about our site origination and development services.
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What are your warranty terms?
We stand behind our transformers with a one-year full warranty and two-year total failure warranty. All warranty claims are handled directly by Giga and our certified service partners, ensuring a smooth, fast warranty process with no third-party complications. Our response team mobilizes quickly to provide rapid resolutions to customer support issues. View warranty documentation on our website.
Does Giga Energy make reliable transformers?
Our transformers are engineered to the highest standards and backed by a one-year warranty. We have thousands of units operating successfully across diverse applications, from Fortune 500 AI and hypercompute data centers to municipal utilities to solar and wind renewables projects, as well as mining. Our quality control and engineering processes have earned the trust of industry leaders like Microsoft, NVIDIA, and major utilities nationwide.
What is your quality control process?
Our quality control system combines rigorous standards with hands-on oversight. While all our manufacturing facilities maintain ISO 9001 certification, we go much further by stationing our own full-time quality technicians working daily at our factories. These Giga personnel implement a comprehensive inspection process covering component verification, assembly checks, and final testing to ensure every transformer meets our high standards.
What certifications do you have?
Our three-phase and single-phase padmount transformers are UL-Listed and meet applicable NEMA, ANSI, IEEE, and DOE standards.
Where are your transformers built?
Our Los Angeles, California facility serves as our main hub of operations. This facility houses our inventory and primary maintenance capabilities. We have a global supply chain, which provides us with the flexibility and speed required to source components and create the fastest lead times possible. Everywhere Giga operates, we have a substantial boots-on-the-ground presence. Our technical team, headquartered at multiple locations across the United States, works directly with our manufacturing technicians to ensure quality and consistency.
Are you the manufacturer?
Yes, Giga is the manufacturer. We build transformers through our own factories and strategic manufacturing partnerships, all under Giga’s direct control. Our engineering team designs every transformer and maintains a continuous hands-on presence during the manufacturing process. Giga engineers work directly on the factory floor, overseeing production and maintaining our rigorous quality standards.
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Related products
Our extensive selection of custom-built solutions and comprehensive inventory ensures that we can provide the ideal equipment to power your projects.
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