Control panel design and modification, built to UL 508A
One controls engineer in Melbourne FL who designs new panels to the UL 508A standard and modifies the ones you already run. When you call, the engineer who lands the wires answers.
Control panel design and modification on the Space Coast
HillPoint Automation is one controls engineer, Will Cordero, working out of Melbourne, Florida. Eighteen years in industrial controls, most of it on hardware where a wiring mistake is not an option: NASA ground systems, OneWeb Satellites, and Airbus US Space and Defense programs. I design control panels, and I modify the ones you already have.
Control panel work here comes in two shapes. New design, where I engineer a panel to the UL 508A standard from the short-circuit rating up. And modification, where I open the panel you own, add what you need, pull out what died, and leave the drawings matching what is actually in the box. Both are vendor-agnostic. I work in Allen-Bradley and Rockwell (ControlLogix, CompactLogix, and the older SLC 500 and PLC-5) and in Siemens (S7-1200 and S7-1500, TIA Portal), because your floor has whatever your floor has.
I am not a panel shop with a sales desk and a ticket queue. When you call (321) 378-0424, the engineer who lays out the back panel and lands the conductors is the one who picks up. That matters when you are trying to explain an SCCR problem or a drive that will not commission, and you do not want to get handed to three people before anyone understands the question.
What UL 508A means, and why your inspector cares
UL 508A is the safety standard for industrial control panels. When a panel is built to it and carries the UL listing mark, it tells an electrical inspector, an insurer, or the next engineer a few things at a glance. The components were selected and spaced correctly. The wire is sized and protected for the load. And the assembly has a documented short-circuit current rating.
That last one, the SCCR, is where most panels get into trouble. It is the amount of fault current the panel can take without coming apart. NEC Article 409 requires an industrial control panel to be marked with its SCCR, and 409.110 covers the rest of the nameplate. If the available fault current at your service is higher than the panel's rating, that panel is not code-compliant, listed or not. Plenty of older panels on Florida floors were never rated at all, which is a problem waiting for the day an inspector or an insurance adjuster looks closely.
Whether you are legally required to carry the UL label depends on your jurisdiction, your insurer, and sometimes your own customer's purchase spec. A lot of AHJs in Brevard and across Central Florida want to see the mark before they energize. Even where nobody is forcing it, a listed panel is the cleanest way to prove the box is safe, and it is the difference between an inspection that takes ten minutes and one that turns into an argument. When I design to 508A, I am designing so that conversation goes the easy way.
New control panel design
A new control panel design starts with the load list and the available fault current, not the enclosure catalog. I size the components, calculate the SCCR so it clears your fault current with margin, lay out the back panel for real heat and real hands, and pick the enclosure rating for where it actually lives. A NEMA 12 in a clean packaging room and a 4X on a wastewater headworks are not the same panel, and getting that wrong shows up as rust and nuisance faults a year later.
You get a full design package: bill of materials, panel layout, wiring and schematic drawings, and the SCCR calculation that backs the nameplate. I design in the platforms you already run, so the panel drops into your plant standards instead of fighting them. If you are looking for an industrial control panel builder who does the actual engineering and not just the assembly, that is the gap I fill.
Here is the honest part about the UL label on a brand-new build. The listing mark itself is applied by a UL 508A listed panel shop, under their file and their inspection. What I do is the engineering: produce the design and drawings that build to the standard, coordinate the build so it comes out listed, and handle the controls integration once the box is on the floor. If you already have a panel shop you trust, I hand them a package they can build from without a stack of RFIs. If you need me to find one, I will. Either way you end up with a panel that is engineered right, not just wired up.
Control panel modification and retrofit
Most of my panel work is not new builds. It is the panel you already own, the one that has been added to for fifteen years, where nobody is quite sure what is live behind the door anymore. Modification is where a controls engineer earns the fee, because the risk is in what you cannot see: a load that pushed the panel past its rating, a ground that got lifted during a breakdown, a spare terminal that is not actually spare.
Common jobs on an existing panel:
- Adding a VFD or soft starter, sized and protected correctly, with the SCCR re-checked so the addition does not quietly break the panel's rating.
- Replacing obsolete parts before they strand you. Rockwell discontinued the PLC-5 line and the SLC 500 is at end of life, so spares are eBay roulette and a single failure can stop you for a week.
- Cleaning up wiring that has turned into a bird's nest: proper terminal blocks, wire duct, and labeled conductors, so the next person can trace a circuit without a meter and a prayer.
- Swapping in a new HMI or PanelView when the old screen goes dark and the replacement part no longer exists.
- Correcting an SCCR, grounding, or bonding problem that an inspector flagged.
Drawings that match the panel
The most common thing I find when I open a panel is that the print stopped being true years ago. Someone added a relay and never red-lined it. A wire got moved during a 2 a.m. breakdown and the drawing never caught up. Now the documentation actively lies to whoever opens the door next, which is worse than having no drawing at all, because it sends you chasing a circuit that does not exist.
Every job I do, the drawings leave matching the panel. If you have a set, I red-line the field and issue clean as-builts. If you have nothing, and plenty of shops have nothing, I build the drawing off the panel itself, tracing it out and documenting what is really in there. You get it as a PDF you can print and hang inside the door, and in the native format so it stays editable for the next change.
This is not paperwork for its own sake. It is the thing that turns a three-hour breakdown into a thirty-minute one, because the person troubleshooting at 2 a.m. can trust the print in their hand instead of guessing.
Part of the whole controls scope, not a box in a corner
A control panel is not the end of the job. It is the hardware layer under your PLC program, your HMI, and whatever is watching the process from the office. The advantage of one engineer across all of it is that the panel gets designed for what the controls actually have to do, not just to pass an inspection and sit there.
I do the PLC programming, the HMI, and the SCADA myself, with Ignition 8.3 as the platform for the plant-wide view (Perspective, MQTT Sparkplug B, a real Unified Namespace) and MES and NetSuite integration on top of that. So when I lay out a panel, I already know what data has to come off it, how each drive is going to be commanded, and where a fault has to show up on a screen. The wiring and the code get built to match each other from the start instead of being reconciled later.
If all you need is a panel modification, that is all you get billed for. But a control panel is never really a standalone box, and it helps to have the person building it thinking about the whole stack while the door is open.
What is the panel that scares you most on your floor?
Text or email me a photo of the inside, or call (321) 378-0424, and I will tell you straight what it needs and whether it is a modification or a new build.