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Stay up-to-date on events, transformer best-practices, industry news, and special offers from Maddox.

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small dry-type transformer with exposed interior

March 4, 2026

Not sure whether to buy new or used? Learn what to expect when purchasing a dry-type transformer and how Maddox tests and warranties every unit for reliable performance.

Parts

substation transformer with cooling fans in yard

February 24, 2026

Explore substation transformers, power-class definitions, voltage ranges, and key design features used in transmission and distribution substations.

Parts

A Maddox 1000 kVA made in america padmount transformer

February 12, 2026

Maddox is donating a free American-made transformer (up to 1000 kVA) to support U.S. manufacturing startups and reindustrialization.

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What are Electrical Transformers?

New to transformers? Check out our article below on what they are, why we need them, how they work, and some common types.

About Transformers

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Manuals for our 3-Phase Padmount, Unit Substation Dry-Type, 600v Dry Type, and Encapsulated/Potted Dry Type Transformers.

Common transformer related terminology and definitions.

Our standard terms and conditions as well as our different product warranties.

Information about becoming a Maddox wholesale partner and the benefits included.

Our standard webstore returns and refund policy. This only applies for general purpose low voltage dry-type transformers purchased online.

Fill out this form if you bought the wrong transformer, or if you received the incorrect unit.

Our webstore shipping and delivery policy. This only applies for general purpose low voltage dry-type transformers purchased online.

Please submit your any warranty claim inquires with this form.

Information about our website terms of service.

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Articles

What to Expect When Buying a Used Dry-Type Transformer

Substation Transformer Guide: Design, Power Classes, and Grid Applications

Maddox Supports Reindustrialization with a Free American-Made Transformer Donation

What are Electrical Transformers?

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