
Multi-bay, louvered and weather-rated cabinets for relays, RTUs, metering and SCADA — built to your panel layout with the ventilation, access and cable entries the equipment inside actually needs.
A control cabinet isn't a smaller switchgear enclosure. It holds heat-generating electronics rather than bus, so ventilation has to be sized to the load; it has technicians in it constantly, so door-by-door access to separate compartments matters; it takes dozens of field cables, so sealed entries and a sensible gland-plate layout matter more than in almost any other enclosure on the site.
FabTek fabricates control cabinets, relay panel enclosures, RTU and SCADA cabinets and metering cabinets to your print at our Hazlehurst, Mississippi plants. Carbon steel, stainless or aluminum; single-, dual- and multi-bay; free-standing, pad-mount or wall-mount; louvered, filtered or sealed; NEMA 1, 12, 3R, 4 or 4X as specified. Panel mounting provisions, DIN-rail and sub-panel studs, three-point latching and door stops are installed to the layout your engineers drew, and every cabinet is powder-coated in-house.
Free-standing and dual-access relay cabinets for substation control houses and outdoor yards, with swing racks or fixed sub-panels.
Ventilated or climate-ready cabinets for RTUs, radios, fiber and network gear, with filtered louvers or provisions for HVAC.
Utility metering cabinets, CT/PT junction cabinets, instrument enclosures.
Two- to six-bay lineups with interbay barriers, common roof and base, and separate door access per bay.







Substation control houses and outdoor control yards; generation and industrial plant control rooms; data center electrical rooms where monitoring, BMS and protection gear needs a home; renewable interconnections and BESS sites where SCADA cabinets sit outdoors.
Utilities specify control cabinets to their own standards and expect the drawings held exactly. OEMs and panel shops buy them empty, wire them, and ship them on — and increasingly ask FabTek to do the wiring and sub-assembly too, so the cabinet arrives bench-tested.
| Materials | Carbon steel, stainless 304/316, aluminum 5052 |
|---|---|
| Ratings | NEMA 1, 12, 3R, 4, 4X as specified — which rating applies |
| Construction | Single-, dual-, multi-bay; free-standing, pad-mount, wall-mount; front or front-and-rear access |
| Ventilation | Louvers, filtered vents, fan provisions, HVAC cutouts and mounting; heaters and thermostats as specified |
| Cable entry | Removable gland plates, bottom/side/top entries, sealed conduit hubs |
| Interior | Sub-panels, swing racks, DIN rail provisions, grounding bars, door pockets |
| Hardware | Three-point latching, padlockable handles, door stops, lift-off or continuous hinges |
| Finish | In-house powder coat, ANSI 61 gray or specified color; IEEE 2000-hour salt-spray rated |
| Welding | AWS D1.3 / D1.6, certified |
| Also specified as | Control cabinet, control enclosure, relay cabinet, relay panel enclosure, RTU cabinet, SCADA cabinet, metering cabinet, instrument enclosure, protection panel housing |
Representative capabilities — exact ranges, ratings, and finishes are confirmed per project. Send drawings for a firm quote.
Because FabTek also runs wiring harness and electrical assembly lines, a control cabinet can leave here with the sub-panel mounted, terminal blocks and DIN components installed, harnesses landed and point-to-point tested against your wiring diagram. One source for the metal and the wire-out removes a hand-off and a shipping leg; our guide on integrated wiring assemblies explains what that looks like in practice.
Built at four production sites in Hazlehurst, Mississippi.
ISO 9001:2015 quality management, AWS-certified welding, OSHA-compliant facilities.
In-house powder coat backed by an IEEE 2000-hour salt-spray certification.
Reserved-line capacity and the automation to grow with your volume.
Yes — control, relay, RTU, SCADA and metering cabinets, single- and multi-bay, fabricated to your drawings and powder-coated in-house at our Hazlehurst, Mississippi plants.
FabTek fabricates utility control cabinets to the utility's standard drawings and NEMA rating, and can deliver them wired and tested through its electrical assembly group.
Yes. Our electrical assembly group installs sub-panels, terminal blocks and harnesses and tests to your diagram before shipment.
NEMA 3R covers most outdoor utility service; step to 4 or 4X for washdown or corrosive and coastal sites. We build to the rating you specify.
Explore related lines: Switchgear enclosures · Switchgear panels · NEMA 3R enclosures · Electrical assembly
Further reading: NEMA 3R vs. 4 vs. 4X · What gauge steel for a NEMA 3R walk-in · Integrated wiring assemblies






Send the panel layout and cabinet drawing — we'll quote the cabinet, and the wiring if you want it, within one business day.