Pole mounted transformers are a key part of overhead electrical distribution systems across the United States. They step medium-voltage distribution power down to usable voltages for homes, farms, commercial buildings, and light industrial facilities.
For utilities, electrical contractors, EPC companies, and project buyers, choosing a suitable transformer involves more than comparing prices. Buyers should consider IEEE/ANSI compliance, kVA range, voltage configuration, protection options, efficiency, lead time, and technical support.
Several established manufacturers supply pole mounted distribution transformers for the U.S. market. This guide introduces some of the major brands buyers may encounter and explains what to consider when sourcing a pole mounted transformer.
Eaton is a well-established electrical equipment manufacturer serving utilities and industrial customers in the United States.
Its Cooper Power series includes single-phase overhead distribution transformers for utility applications. Eaton lists ratings from 5 to 167 kVA, primary voltages from 2,400 to 34,500 V, and secondary voltages from 120 to 600 V. Conventional units are available with mineral insulating oil or FR3 natural ester fluid and are designed to meet applicable ANSI, NEMA, and DOE efficiency requirements.
For buyers already using Cooper Power series equipment and accessories, Eaton can be a familiar option for overhead distribution projects.
ERMCO is another established manufacturer in the North American distribution transformer market.
Its single-phase pole mounted transformers are designed to comply with applicable IEEE and RUS standards. ERMCO lists ratings from 0.5 to 250 kVA, with primary voltages from 2.4 kV through 34.5 kV and secondary voltages up to 600 V.
ERMCO also manufactures three-phase pole/platform-mounted transformers, providing another option for projects where three-phase overhead distribution is required.
Howard Industries is a U.S. manufacturer with a broad portfolio of distribution transformers.
Its product range includes both single-phase and three-phase pole mounted transformers, alongside pad-mounted and substation transformers. Howard’s published product information lists single-phase pole-mounted capacities from 0.5 through 833 kVA and three-phase pole-mounted capacities from 30 through 150 kVA, depending on the product configuration.
Howard may therefore be considered by utilities and other buyers that require a broad selection of distribution transformer configurations.
Central Moloney is another U.S. distribution transformer manufacturer serving overhead and underground power distribution applications.
Its current portfolio includes both single- and three-phase pole mounted transformers. Published specifications show single-phase pole mount ratings from 5 through 1,000 kVA and three-phase ratings from 30 through 300 kVA, with high-voltage ratings extending to 34.5 kV depending on configuration.
The company also offers dual-voltage, tap, protected, and other customized configurations depending on the transformer type.
Prolec offers distribution transformers for utility networks throughout the Americas.
Its single-phase pole-type transformer range covers 10 to 167 kVA, with high-voltage ratings up to 34.5 kV. Conventional and self-protected configurations are available, along with mineral oil and natural ester fluid options.
According to Prolec, these pole-type transformers are designed to meet or exceed relevant IEEE, RUS, NEMA, and ANSI requirements.
This makes Prolec another established supplier to consider for conventional utility overhead distribution applications.
QXG TECHNOLOGY provides pole mounted distribution transformers designed for North American applications, including utility, residential, commercial, and light industrial distribution projects.
QXG’s pole mounted transformer range covers single-phase and three-phase configurations, with published ratings from 5 kVA to 500 kVA, high voltages from 2.4 kV to 34.5 kV, and configurations up to 150 kV BIL. Available designs include conventional and CSP types.
QXG designs and manufactures its pole mounted transformers around applicable IEEE, ANSI, DOE, and other project requirements, with options including:
QXG has also supplied IEEE-standard pole mounted transformers for U.S. projects, including units matched to a 12.47 kV overhead distribution network for a mixed residential and commercial development.
For buyers sourcing transformers outside traditional utility procurement channels, QXG can also provide customized configurations according to project voltage, capacity, accessories, and technical specifications.
| Brand | Typical Strength | Pole Mounted Options |
|---|---|---|
| Eaton | Established utility equipment portfolio | Single-phase overhead |
| ERMCO | Distribution transformer specialization | Single & three phase |
| Howard Industries | Broad U.S. distribution transformer range | Single & three phase |
| Central Moloney | Wide rating and customization range | Single & three phase |
| Prolec | Utility-focused distribution equipment | Single-phase pole type |
| QXG TECHNOLOGY | Customized North American-standard solutions | Single & three phase |
These ranges and product offerings can change, so buyers should confirm the current technical specification with the manufacturer before procurement.
The brand name is only one part of the purchasing decision. A transformer must first match the electrical and mechanical requirements of the project.
Before requesting a quotation, buyers should confirm rated capacity (kVA), primary voltage, secondary voltage, phase, frequency, BIL, winding material, impedance, tap requirements, insulating fluid, protection configuration, applicable standards, and required accessories.
For U.S. projects, compliance with the applicable IEEE/ANSI requirements and current DOE efficiency requirements should also be confirmed. Utility projects may have additional utility-specific specifications.
Lead time is another important consideration. Transformer supply remains an important issue in the U.S. market, and industry research in 2026 continues to report elevated bookings and extended delivery schedules across portions of the transformer industry.
Therefore, buyers should compare not only transformer price but also technical compliance, production capacity, delivery schedule, testing documentation, warranty, and after-sales support.
QXG TECHNOLOGY supplies customized pole mounted transformers for U.S. and North American power distribution applications, including single-phase and three-phase configurations for residential, commercial, utility, and light industrial projects.
QXG can manufacture transformers according to required capacity, primary and secondary voltage, winding material, protection configuration, tank construction, and accessories. Its published pole-mounted range extends to 500 kVA and 34.5 kV.
If you have a transformer specification, single-line diagram, or project requirement, contact QXG TECHNOLOGY at info@qxgelec.com for technical support and a quotation.