Custom General Purpose Transformers (Power Transformers) are designed to provide system power

Designed in a collaborative effort between your staff and ours, designs are available in:

  • Either Step-Up or Step-Down,
  • Single-phase and three-phase,
  • Multiple primary or secondary voltages accomodated,
  • Available open frame or in a NEMA rated enclosure,
  • With or without circuit protection.
Contact a sales representative Specifying your transformer
Power Rating 50VA up to 1.5MVA
No. of Phases 1
Frequency 50/60Hz
400Hz up to 20kHz
Voltages Up to 600V Standard
For higher voltages, visit our high voltage transformer page.
Common Taps (Vrms) 180 | 200 | 208 | 220 | 240 | 260 | 280
380 | 400 | 440 | 480 | 500 | 600
Specific taps and ± can be accommodated
Other Options Enclosures
Circuit breakers
EMO switches
Low impedance
K-factor rating


15kVA custom general purpose transformer, universal voltages, receptacles 15kVA transformer
AC Power Transformer AC Power Transformer
500kVA custom transformer 500kVA transformer
150kVA custom semiconductor transformer 150kVA transformer
225kVA distribution transformer 225kVA transformer
400kVA General Purpose Transformer General Purpose Transformer

15kVA Transformers

Step-up general purpose custom transformer
This 15kVA step-up transformer has multiple taps on the primary and secondary for world-wide use. It also has multiple receptacles that can be plugged in depending on where in the world this will be used. This custom general purpose step-up transformer is used in 3D x-ray imaging systems.
Power Rating 15kVA
No. of Phases 3
Frequency 50/60Hz
Primary 180/200/220/240/380/400/420/440/480Vrms
Secondary 1 208Vrms at 15Arms
Secondary 2 208Vrms at 15Arms
Secondary 3 208Vrms at 15Arms
Secondary 4 120Vrms at 15Arms
Features NEMA1 enclosure
Primary and secondary circuit breakers
Primary and secondary receptacles

Main Power Transformer

Custom Main AC Power Transformer
This 18.5kVA Power Distribution Transformer has multiple taps for universal usage. It is used in Semiconductor Capital Equipment.
Power Rating 18.5kVA
No. of Phases 3
Frequency 50/60Hz
Primary 480Vrms
Secondary 65/56/50/43/38/33Vrms @ 18.5kVA
Certifications NRTL to UL 1561

500kVA step-up transformer transformer

Angle view of a 500 kVA step-up transformer
This 500kVA general purpose transformer was used for a particular industrial application. Outfitted with external temperature meters and alarms/lights to ensure the transformer never exceeded temperature specifications, this industrial transformer was built for safety in a high traffic work environment.
Power Rating 500kVA
No. of Phases 3
Frequency 50/60Hz
Primary 380Vrms line-line
Secondary 480Vrms line-line at 500kVA
Features NEMA1 enclosure
Coil temperature monitor with alarm

150kVA step-up transformer

Step-up general purpose transformer
This 150kVA general purpose transformer is used in the production of semiconductor manufacturing equipment. This custom transformer is outfitted with circuit breakers.
Power Rating 150kVA
No. of Phases 3
Frequency 50/60 Hz
Primary 440Vrms
Secondary 480Vrms at 180Arms
Features NEMA1 enclosure
Primary and secondary circuit breakers

Distribution Transformer (QT&E 9808)

This General Purpose Transformer has a multitap secondary for universal power distribution.
Power Rating 225kVA
No. of Phases 3
Frequency 50/60Hz
Primary 480Vrms Delta
Secondary 340/360/380/400/420/440/460/480500/520Vrms Wye

General Purpose Transformer (QT&E 8550)

400kVA enclosure general purpose transformer image
Power Rating 400kVA
No. of Phases 3
Frequency 50/60Hz
Primary 400/440/480Vrms
Secondary 400/230Vrms