6402 McGrew St, Houston, TX 77087 · Buying statewideCall (951) 403-5738 · Text photos · Industrial832@gmail.com

Transformer sizes

45 kVA Transformer Buyers in Texas

Want to sell a 45 kVA transformer in Texas? We buy new surplus, used, retired and failed units. Send the nameplate, equipment photos, quantity, condition and location so we can assess your transformer and make an offer.

45 kVA

Rating
45 kVA
Forms
Dry-type transformers
FLA
54 A @ 480 V
Area
All of Texas
Ventilated general-purpose dry-type transformer in a commercial electrical room
A general-purpose dry-type transformer in a building electrical room.

Sell a 45 kVA transformer from a Texas facility

Texas Transformer Buyers buys single transformers and whole lots across Texas, including any brand of 45 kVA unit. New equipment still in its crate, operating takeouts, stored spares and failed transformers can all be submitted for an offer. You do not need a matching set or a large inventory to contact us.

At this rating, the usual equipment is a dry-type transformer, which uses air rather than insulating liquid for cooling. It commonly has a ventilated metal enclosure around its core and windings, with a connection compartment for incoming and outgoing conductors. Indoor installations are common, although enclosure ratings determine where a particular unit can be installed.

These units often serve small commercial panels, lighting and receptacle loads, and rooftop equipment. Sellers may have one available after a tenant build-out, service upgrade, plant renovation or equipment replacement. Our dry-type transformer buying page covers the broader equipment category.

45 kVA three-phase full-load amps by voltage (A = kVA × 1000 ÷ (1.732 × V))
VoltageFull-load ampsTypical role
208 V125 ALow-voltage secondary
240 V108 ALow-voltage secondary
480 V54 ALow-voltage secondary
600 V43 ALow-voltage secondary
12,470 V2 ADistribution primary / secondary
13,800 V2 ADistribution primary / secondary
24,940 V1 ADistribution primary / secondary
34,500 V1 ADistribution primary / secondary

Check any rating with the kVA to amps calculator.

Common 45 kVA transformer specs and voltages

A common three-phase configuration is a 480 V primary with a 208Y/120 V secondary. Primary voltage is the incoming supply; secondary voltage is the output. The Y indicates a wye-connected winding, with 208 V between phases and 120 V from a phase to neutral in this example.

Other configurations can include a 600 V primary feeding 208Y/120 V, or a 480 V primary feeding 240 V. Single-phase units and other winding arrangements also exist, so the 45 kVA rating alone does not identify the electrical configuration. Send the actual nameplate rather than describing the unit only as a step-down transformer.

Voltage taps, which provide small adjustments to the winding ratio, also matter. Include the listed tap range, frequency and phase count. For a used 45 kVA transformer, clear photographs of the terminal markings and connection diagram help distinguish a straightforward replacement candidate from equipment requiring a more specific application.

New surplus transformers on shipping skids inside a warehouse
New, never-energized surplus transformers in storage.

Full-load amps and what they tell a buyer

The 45 kVA rating describes apparent power capacity, not one fixed current rating. For three-phase equipment, full-load amps equal kVA multiplied by 1,000, divided by 1.732 times the line-to-line voltage. At the same capacity, a lower voltage means a higher current.

The table below shows approximately 125 A at 208 V, 54 A at 480 V and 43 A at 600 V. Its higher-voltage examples round to 2 A at 12,470 V and 13,800 V, and 1 A at 24,940 V and 34,500 V. Those examples illustrate the calculation; they do not establish your transformer's voltage ratings.

Buyers use these figures to assess fit for a potential installation and compare the incoming and outgoing sides. They are not instructions for selecting breakers, conductors or allowable continuous loading. Use the kVA-to-amps calculator and chart to check a listed voltage, and keep the nameplate configuration attached to the calculation.

What affects value and demand at this size

A 45 kVA transformer buyer needs to know more than capacity. Voltage combination, phase count, winding material, enclosure condition and operating history influence how the unit can be evaluated. Complete equipment with readable identification is easier to assess than an unidentified enclosure or a unit with missing connection components.

Demand for this size depends on matching the transformer to a smaller distribution load. Common commercial voltage combinations may fit more applications than unusual configurations, but condition and project requirements still matter. A 45 kVA unit is not interchangeable with a larger transformer simply because the voltages match.

Tell us about overheating, water exposure, unusual noise, damaged terminals or a known winding failure. Include existing test reports if available, without arranging new testing solely to submit an inquiry. Failed units are still within our buying scope, but they should be described as failed rather than presented as operating equipment. Storage conditions and missing parts also help us evaluate the offer.

Nameplate details and photos to send

Start with one straight-on nameplate photo sharp enough to read when enlarged. Our guide to reading a transformer nameplate explains where to find the key information. If a plate is damaged or partly obscured, photograph the readable portions and include any existing equipment documentation.

Send the following details together so the equipment and pickup location can be assessed as one package.

  • Manufacturer, identifying numbers, 45 kVA rating, phase count, frequency, primary and secondary voltages, and connection diagram.
  • Tap settings or listed tap range, winding material if identified, and impedance—the nameplate percentage describing the transformer's opposition to current flow.
  • Overall photos from multiple sides, including the enclosure, base, visible damage and connection compartment where safely accessible.
  • Quantity, city or site address, current condition, whether it is installed or already removed, and any known operating or failure history.

Weight, access and pickup planning in Texas

Do not estimate handling requirements from the 45 kVA rating alone. The nameplate lists the exact weight; photograph that entry and use the manufacturer’s handling information to identify suitable lifting points. Enclosure construction and winding material can affect handling even among units with the same capacity.

Describe stairs, doorways, loading docks, overhead restrictions and the route from the installation area to the truck. A forklift or other rigging must be appropriate for the actual equipment and site conditions. Trailer selection also depends on weight, securement needs, loading method and access—not just whether the enclosure appears compact.

We operate from our Houston yard at 6402 McGrew St, Houston, TX 77087. We coordinate trucking statewide, including transformer purchases in Houston and sales from Pasadena facilities. The seller or the seller's qualified electrical contractor must de-energize and disconnect the equipment; we coordinate freight and load-out with the seller.

Get an offer for your 45 kVA unit

To sell a 45 kVA transformer, call or text (951) 403-5738, email Industrial832@gmail.com, or submit your transformer for an offer. Include the photos and details above, plus any site restrictions that could affect removal. For a lot, identify each unit rather than assuming every enclosure contains the same rating.

We assess the information and respond with an offer. You get the price, payment terms and pickup details in writing before a truck is loaded. Tell us whether your project has a removal deadline so it can be considered during pickup planning.

Frequently asked questions

Can I sell one 45 kVA transformer in Texas?

Yes. We buy individual units as well as whole lots statewide. Send the nameplate, overall photos, condition and location; a single unit does not need to be bundled with other equipment.

Is a 45 kVA transformer always three-phase?

No. Three-phase dry-type units are common at this size, but capacity alone does not establish phase count. Confirm the phase designation on the plate before using the three-phase amps table.

Will you consider a failed 45 kVA dry-type transformer?

Yes. Describe the failure and any visible damage, and include existing test findings if available. Do not energize failed equipment just to demonstrate its condition for an offer.

Does 125 A apply to every 45 kVA transformer?

No. Approximately 125 A applies to three-phase full-load current at 208 V. A 480 V side is approximately 54 A, and single-phase equipment requires a different calculation.

What if my 45 kVA unit is still installed?

You can submit it for an offer while installed. Explain its location and removal access, and provide only safely obtainable photos. Include any planned shutdown or removal date with your inquiry.

Have a transformer to sell?

Send the nameplate photo, a few overall shots and the location. We buy single units and whole lots anywhere in Texas.

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