Leading Supplier of Line Reactors

undefinedONYX is a leading supplier of Line Reactors used in medical, semiconductor, oil and gas and other markets requiring specialized high frequency magnetics. ONYX line reactors reduce harmonics to increase drive system reliability and up time, as well as protect equipment against low-frequency interference thus improving total power factor. 

Applications include:

Adjustable Frequency Drives


Uninterruptible Power Systems (UPS)


Medical Imaging Equipment

Semiconductor Manufacturing

Oil & Gas Production

Switch Mode Power Supplies

Motor Control Systems


ONYX Line Reactors are available in voltage ranges up to 15kV and capacities up to 5 MVA three phase.

Premium Grade Isolation Transformer

undefinedThe ONYX K-Factor power distribution transformer is a premium grade, low voltage, dry type, isolation transformer designed for powering critical loads.  The K-Factor series of transformers safely isolates the distribution system from hazards of harmonics and power disturbances.


Thermal management, noise suppression, demonstrated field reliability and lead time as little as two weeks are key features that set the K-Factor apart from the competition.



High efficiency options result in significant cost savings (meets or exceeds TP-1/Energy Start standards)

Electrostatic shield between windings attenuates common mode and normal mode noise

200% rated neutral bus manages harmonics and non-linear loads without risk of excessive heating

K-20 rating accommodates nonlinear loads without the risk of heat build-up

Large copper flat bus bar connections accommodate overloads without the risk of spot heating

Dual 240°C Nomex barrier and vacuum impregnated varnish coating ensures 25 year life

Single or Dual Output (dual zig-zag) models

Optional integrated distribution panel and current monitoring

UL 1561, UL 1449, cUL listed

10 year manufacture warranty 


ONYX is experienced in offering both custom as well as standard inventory offering through the K-Factor power distribution series.  Regardless of your application, requirements or timeline, you can rely on ONYX for dependable integrated power magnetics solutions.

High Efficiency Power Quality Transformer

undefinedONYX PowerCube series of transformers offers our customers “green” electrical power distribution capabilities that lower electricity waste as well as reduces greenhouse gas emissions. PowerCube transformer designs can also be customized to support Delta- Wye, Delta Zig Zag, Dual Zig Zag, Quad-Wye, Medium Voltage and Autotransformers requirements.  The PowerCube provides an optimal solution for data centers, educational institutions, government, healthcare, industrial and commercial buildings where lower operating costs, energy savings, and focus on reducing our environmental footprint are a priority. 



The PowerCube™ series provides: 

Wide range of kVA rating capabilities from 30kVA to 1,000kVA

K Factor specifiable K1 through K30

Diminished heat generation, thus limiting required cooling capacity and reducing operating costs

Reduced greenhouse emissions

Meets TP-1 efficiency standards

Qualifies for LEED building criteria

Real time efficiency status monitoring

Warranty options 12 to 25 years