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RIONEX ENERGY
Transformer assembly bay

Authorized U.S. Distributor · UL-Listed Equipment

UL-listed transformers, quoted in one business day.

Pad-mounted, substation, and dry-type transformers plus power-quality equipment. Factory-direct, engineered to your spec, backed by verifiable UL files.

45-4,000
kVA padmount range
4
Active UL file numbers
100%
Units routine-tested
US + CA
UL & CSA coverage

Built for engineers who have to sign off.

Transformer procurement fails on paperwork more often than on price. We lead with the documentation.

UL certification you can verify

Every transformer line carries an active UL file (E526441, E539752, E545481) that your AHJ and engineer can look up on UL Product iQ in seconds.

Factory-direct lead times & pricing

As the authorized U.S. distributor we quote straight from factory production slots: no extra middle layer, no marked-up broker stock.

Engineering support before you buy

Send your one-line and spec sheet. We review voltage class, impedance, fusing, and accessories with the factory before we quote.

Full test documentation

Routine test reports ship with every unit, backed by a CNAS-accredited transformer test station and shielded partial-discharge test room.

See where your equipment is built.

Climate-controlled winding rooms, vacuum pressure impregnation, CNAS-accredited routine testing, and a shielded partial-discharge test room.

Climate-controlled winding room
Transformer test bay
Vacuum pressure impregnation line
Factory & Quality →

Verify our UL files before you call us.

Four active UL file numbers, all searchable on UL Product iQ before you ever talk to sales.

E526441
Liquid-filled padmount transformers
E539752
UL 1561 dry-type transformers
E545481
UL 1562 medium-voltage dry-type
E538000
UL-recognized insulation systems
View Certifications

Ready to spec your project?

Send us your one-line diagram, load list, or spec sheet. Our team responds with pricing and lead times within one business day.