We buy surplus and used Eaton transformers from sellers throughout Virginia, including new-surplus equipment left over from construction and decommissioned units from facility upgrades. An Eaton nameplate may identify a liquid-filled Cooper Power series transformer, a general-purpose dry-type unit or the transformer section of a unit substation. Those differences matter when describing what you have.
Eaton acquired Cooper Industries in 2012. Cooper Power Systems liquid-filled distribution and substation transformers now carry the Eaton Cooper Power series name, while Eaton's low-voltage dry-type transformers descend from the Cutler-Hammer product line. Older labels can therefore be relevant to the same equipment search. Our Cooper Power Systems equipment page covers units bearing that name.
01Eaton Equipment We Buy
We buy Eaton transformers across the supported size range: single-phase units from 10 kVA and three-phase units from 15 kVA through MVA-class power transformers. The equipment groups on this page are Cooper Power series pad-mounts, general-purpose dry-type transformers, medium-voltage dry-type units and unit substations. We also buy Eaton equipment in other supported transformer configurations.
The first distinction is construction, not branding. A liquid-filled pad-mount with cable compartments requires different photos and specifications than a ventilated dry-type transformer mounted inside a building. For outdoor distribution equipment, our pad-mount transformer buying page explains the configuration details that help identify the unit.
- Cooper Power series pad-mounts: photograph the tank, identification plate and safely accessible compartment labels.
- General-purpose dry-type units: show the enclosure, rating plate and any visible damage.
- Medium-voltage dry-type units: include winding voltages, insulation information and enclosure details.
- Unit substations: identify the transformer and which adjoining switchgear sections are included.
02Identify Eaton, Cooper and Cutler-Hammer Nameplates
Send a straight-on photo with enough resolution to read the manufacturer, serial number, kVA, phase, frequency and primary and secondary voltages. Include the manufacturing year if it appears. Do not substitute the installation date for the manufacturing date; they can differ substantially. If a plate is faded, send close-ups rather than guessing at unreadable characters.
Voltage notation needs to be exact. A primary marked 12470GrdY/7200 and a secondary marked 480Y/277 communicate more than a description such as “12 kV to 480.” Photograph tap settings or the tap diagram, impedance, winding connection and weight where listed. For liquid-filled units, include fluid identification and cooling ratings such as ONAN/ONAF when present. Use our transformer nameplate guide to locate these fields.
A Cutler-Hammer label on a low-voltage dry-type unit is useful identification, not a reason to leave it out of an Eaton equipment inquiry. Photograph the actual plate rather than relabeling the transformer yourself. On a multi-section assembly, check whether the transformer and switchgear have separate plates so their ratings do not get mixed together.
03What Matters on Cooper Power Series Liquid-Filled Units
For Cooper Power series pad-mounts, we pay attention to voltage, kVA, dead-front or live-front construction, and radial-feed or loop-feed configuration. Include connector and bushing information already available in equipment records or safely obtained photos. Do not open energized compartments to get a better picture. Cabinet condition, tank leaks and missing components belong in the condition notes.
Many Cooper and Eaton liquid-filled transformers contain Envirotemp FR3 natural ester fluid rather than mineral oil. Read the fluid label or supporting records instead of identifying fluid by appearance. FR3 identification does not replace PCB documentation: PCB status must be disclosed and documented. Tell us about known leaks, fluid replacement, repairs or missing fluid records.
On larger liquid-filled units, the cooling configuration and accessories also help describe what is included. Show radiators, fans, gauges and terminal arrangements in overall photos. If test reports or maintenance records are available, include them with the equipment information. We do not ask sellers to drain fluid, and we do not give environmental advice.
04Dry-Type Transformers and Complete Unit Substations
For Eaton general-purpose dry-type transformers, send the primary and secondary voltages, kVA, phase and enclosure information. Insulation class and temperature rise are separate nameplate fields; include both when listed. Visible winding damage, heavy contamination, water exposure and missing panels should be disclosed. Our dry-type transformer page covers this equipment category.
Medium-voltage dry-type equipment needs a fuller description than a building distribution transformer. Include basic impulse insulation level, winding construction and cooling information when marked. For cast-resin units, photograph the resin-encapsulated coils only where safely accessible. Existing test data can help explain condition, but a nameplate rating alone does not establish operating condition.
For an Eaton unit substation, specify whether you are selling only the transformer or an assembly with primary switching and secondary switchgear. Photograph each section and describe anything already removed. The transformer rating does not establish the ratings of adjoining gear. See our unit substation buying page for assembly-specific information.
05Virginia Projects That Can Leave Eaton Transformers Surplus
Eaton transformer inquiries can come from industrial plant upgrades, commercial building renovations, warehouse projects and institutional facility replacements. A voltage change or electrical service redesign can leave a working transformer without a use at its original site. New-surplus units can also remain after project specifications change. Describe why the equipment became available without assuming removal means failure.
We serve sellers in every Virginia region, from Northern Virginia and the Shenandoah Valley to Central Virginia, Hampton Roads, Southside and Southwest Virginia. For equipment still inside a facility, note door openings, indoor placement and any access restrictions. For outdoor units, describe the surrounding surface and whether other equipment blocks access. These details help distinguish an available transformer from one that is not yet ready for pickup.
06Send an Eaton Transformer Inquiry With Clear Scope
If you want to sell Eaton transformer equipment, send the nameplate, overall photos, location, quantity and condition notes through the equipment offer form. We review the information and may ask about PCB status, test data or access. If the equipment fits, we send a written offer stating price, freight, loading and payment terms; pickup is scheduled with you, and payment follows those terms. See how the buying process works for details.
Keep electrical work separate from the sale. Your qualified electricians must de-energize and disconnect the equipment; we do not perform electrical disconnect work or provide engineering, legal or environmental advice. Virginia Transformer Buyers is an independent buyer, not affiliated with Eaton, Cooper, Cutler-Hammer or Virginia Transformer Corp of Roanoke. Brand names describe equipment only.
Frequently asked questions
Can I sell an older Cooper transformer through this Eaton inquiry?
Yes, Virginia Transformer Buyers buys older Cooper Power Systems transformers as well as Eaton Cooper Power series units. Eaton acquired Cooper Industries in 2012, so the actual manufacturer label and manufacturing year help identify the equipment. Send the original nameplate, serial number and ratings rather than describing an older Cooper unit as newly manufactured Eaton equipment.
Do you buy Eaton dry-type transformers labeled Cutler-Hammer?
Yes, we buy supported dry-type transformers carrying Cutler-Hammer identification. Eaton's low-voltage dry-type transformers descend from that product line. Send the actual manufacturer label along with kVA, phase, primary and secondary voltages, insulation class and condition. Include enclosure photos so we can see whether the unit is complete or has missing panels.
Does FR3 fluid change what I need to disclose?
FR3 fluid should be identified, but it does not remove the requirement to disclose and document PCB status. Many Cooper and Eaton liquid-filled units use Envirotemp FR3 natural ester fluid. Send fluid labels and available records, and disclose known leaks or fluid changes. Do not drain the transformer to prepare it for a sale inquiry.
Can I sell just the Eaton transformer from a unit substation?
Yes, you can submit the transformer alone rather than the complete unit substation. State clearly that primary switching or secondary switchgear is excluded, and identify any components already removed. Send the transformer's own nameplate and photos. Your qualified electricians must handle de-energization and disconnection; Virginia Transformer Buyers does not perform that work.
Will you review a failed Eaton pad-mount transformer?
Yes, failed Eaton pad-mount transformers receive case-by-case review. Explain the known failure, including leaks, damaged bushings, winding damage or missing components, and send available test or maintenance records. Do not describe an untested failed unit as operational. PCB status must be disclosed and documented, and an inquiry does not guarantee an offer.
What if the Eaton transformer nameplate year is unreadable?
Send the readable nameplate information and state that the manufacturing year is unknown. A clear serial number, close-up photos and existing purchase or maintenance records may help identify the unit. Do not use the building construction year or installation date as a substitute. Virginia Transformer Buyers can review the equipment information without an invented date.