Panel Fabrication

Trimax operates a fully-certified UL 508a (Industrial Control Panels) and UL 698a and 698b (Hazardous Locations) panel fabrication shop in southern California. We perform wiring, assembly, and testing at this facility. Our staff have in-depth experience with wiring and fabrication for every type of custom enclosure and control panel, from explosion-proof push button stations to large-scale analyzer and sample panels. We routinely design and configure custom designs per customer requirements.

Quality Craftsmanship

Each panel is meticulously laid-out by experienced wiremen in accordance with engineer-approved drawings. After fabrication, the responsible engineer and shop manager execute an 18-point quality inspection test to ensure UL compliance, proper functionality, and first-rate craftsmanship.

In addition to our standard quality control testing, Trimax also offers witnessed factory acceptance testing, power, burn in, and simulation testing to give clients the utmost confidence that the products will function as designed.

  • Low and medium voltage panels

  • Variable frequency drive (VFD) enclosures

  • PLC and HMI control panels
  • SCADA communication panels

  • Remote input/output (RIO) panels

  • Lighting panels

  • Pump panels

  • Substation relay racks and control buildings
  • Custom enclosures and control panels ranging from explosion-proof push button stations to large-scale analyzers and sample panels


  • Initial consultation
  • Engineering design and configuration
  • Innovative layout and fabrication
  • FAT testing (Factory Acceptance Testing)
  • 18-point quality control process
  • Instrument integration
  • Custom painting and graphics
  • Delivery to site


Trimax operates a fully-certified panel shop in Brea California with the following UL certifications:

  • UL 508a (Industrial Control Panels)
  • UL 698a and 698b (Industrial Control Panels Relating to Hazardous (Classified) Locations)

Superior systems begin with understanding your needs and processes.