Onyx Engineering Company Panel Build Onyx Control Systems

Panel Build

ONYX is ETL Certified

ONYX Engineering has been registered to Intertek’s ETL Panel Builder Certification Program for Industrial Control Panels. Panels bearing the mark certify that they conform to UL 508A 3rd and CSA C22.2 No.286 standards. The ETL Listed Mark is accepted by regulatory authorities in every jurisdiction in the United States and Canada.


Your Best Choice for Industrial Control Panels

ONYX Engineering has been a manufacturer of custom control solutions since 1993. Our experienced panel build group have the capability and resources to manufacture a wide variety of panels and systems including large multi-door control panels, stainless steel IP69 process control panels, cables, and junction boxes.

All of our equipment goes through a rigorous inspection and validation process prior to shipment. Our quality control standard ensures that every aspect of our panel fabrication business is well-run. Including: key processes, management roles and responsibilities, documentation, customer satisfaction, employee training, service and internal audits.

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Mounting Ground Bars







Assembly Backplate Layout




Wiring - Rack To Terminals