Data centers
Three-phase step-down from 12.47 kV or 34.5 kV distribution to 480Y/277 V for data center and critical-facility service. Send the single-line and utility requirements and we match the unit.
In stock now — Pad-mount transformers
Pad-mount transformers in stock, ready to ship to Arizona.
Three-phase pad-mount transformers in stock now: 500 to 3,500 kVA, 12.47 kV and 34.5 kV primaries, 480Y/277 V secondaries. UL Listed, built to IEEE/ANSI standards and made in the USA. Tech Energy America supplies them from Scottsdale for data center, solar, commercial and industrial projects across Arizona.
— Current inventory
Eight ratings. Ready to ship.
Every unit below is in stock today. Pick the rating, click "Request a quote" and we confirm availability and send pricing for your project.
Multiple units in stockMade in the USAUL ListedMore arriving mid-October
In stock · ready to ship
kVAPrimary → SecondaryStatusQuote
Inventory changes as units ship. More 2,500, 3,000 and 3,500 kVA 34.5 kV units arriving mid-October. Pricing by quote.
— Specifications
What every unit comes with.
All in-stock units share the same construction. Ratings and voltages are in the inventory table above.
- Type
- 3-phase pad-mounted, loop feed
- Standards
- Built to IEEE/ANSI standards
- Listing
- UL Listed
- Connection
- GrdY-GrdY (750 kVA unit: delta-wye)
- Tap changer
- DETC (de-energized tap changer)
- Windings
- Aluminum
- Switching
- 4-position loadbreak switch
- Fusing
- Bayonet fuses
- Impedance / frequency
- Standard impedance · 60 Hz
- Insulating fluid
- Mineral oil
- Enclosure
- 3-point pentabolt hatch / lock
- Finish
- Munsell green
— Optional factory tests
Factory tests, on request.
Need test reports for the utility, the engineer of record or the owner? The following factory tests are available on request when you order.
Tell us which tests you need when you request the quote.
— Applications
Data centers. Solar. Commercial & industrial.
Solar projects
Many Arizona solar projects collect at 34.5 kV. Send the inverter data and single-line and we confirm whether an in-stock 34.5 kV unit fits the design before you order.
Commercial & industrial
Service transformers for commercial buildings, plants and industrial sites, with 480Y/277 V secondaries and loop-feed pad-mount construction.
— In-stock transformer questions
Straight answers before you order.
Are these pad-mount transformers really in stock?
Yes. The units listed on this page are in stock and ship from stock once the order is confirmed and credit is approved. Inventory changes as units ship, so we confirm current availability when you request a quote.
What voltages and sizes are available?
12.47Y/7.2 kV primary to 480Y/277 V secondary in 500, 1,000 and 1,500 kVA (GrdY-GrdY, with J tap), and 34.5Y/19.92 kV primary to 480Y/277 V in 1,500, 2,500, 3,000 and 3,500 kVA (GrdY-GrdY). A 750 kVA 34.5 kV delta-wye unit, 480/277 V, is also available in limited availability.
Do you have a 2,500 kVA pad-mount transformer with a 34.5 kV primary?
Yes. 2,500 kVA 34.5Y/19.92 kV – 480Y/277 V pad-mount transformers are in stock, with more units arriving mid-October. The same applies to the 3,000 kVA and 3,500 kVA 34.5 kV ratings.
Can these transformers be used for a data center in Arizona?
Three-phase pad-mount transformers that step 12.47 kV or 34.5 kV distribution down to 480Y/277 V are a common fit for data center and critical-facility service. Send the single-line, load and utility requirements and we confirm the right unit from stock.
Can a 34.5 kV unit be used on a solar project?
Many commercial and utility-scale solar projects in Arizona collect at 34.5 kV. Whether one of these units fits depends on the inverter output and the interconnection requirements, so send the inverter data and single-line and we confirm suitability before you order.
What are the main specifications?
All units are three-phase pad-mounted, built to IEEE/ANSI standards and UL Listed, with DETC tap changer, aluminum windings, 4-position loadbreak switch, bayonet fuses, standard impedance at 60 Hz, mineral oil, loop feed, 3-point pentabolt hatch/lock and Munsell green finish.
Are factory tests available?
Yes, on request: routine tests per C57.12.00, temperature rise, sound level, lightning impulse, partial discharge, insulation power factor and a virtual witness test.
How do I request a quote?
Click "Request a quote" next to the unit you need, email [email protected] with the kVA, primary voltage and project location, or call (480) 520-1966. Pricing is by quote.
Need a pad-mount transformer now?
Send the kVA, primary voltage and project location. We confirm availability and send a quote for the unit in stock.