Products
Pad-Mount Transformer Cabinets & Enclosures
The cabinet on the pad: HV and LV compartment enclosures, sills, hoods and doors for single- and three-phase pad-mount transformers, built to your print on dedicated production lines.
The cabinet on the pad: HV and LV compartment enclosures, sills, hoods and doors for single- and three-phase pad-mount transformers, built to your print on dedicated production lines.
Every pad-mount distribution transformer ships inside a cabinet: a tamper-resistant, NEMA 3R compartment enclosure with a high-voltage side, a low-voltage side, a hinged hood or doors, a sill that bolts to the pad, and the penta-head bolts, hasps and barriers the utility standard requires. Transformer OEMs build the core-and-coil and the tank; increasingly they buy the cabinet from a contract fabricator so their own floor space goes to the transformer.
FabTek is that fabricator for several of the largest transformer OEMs in North America and for the mid-market OEMs and remanufacturers growing behind them. We fabricate pad-mount transformer cabinets at hundreds of units per month on a single shift at our Hazlehurst, Mississippi plants — laser-cut, formed on CNC press brakes, welded, hardware installed, powder-coated in-house to the utility's ANSI color, and shipped wrapped and staged for the OEM's line. Single-phase and three-phase, dead-front and live-front, loop-feed and radial-feed configurations, to whatever print you release.
Two-compartment HV/LV cabinets with hoods or double doors, interphase barriers, sills and parking-stand provisions, per ANSI C57.12.34-style OEM drawings.
Compact one-piece cabinets and hoods for single-phase units, high-volume, with tamper-resistant hardware.
Component-level supply: cabinet sills, hinged hoods, HV/LV doors, sill extensions, barriers and bushing wells' surrounding panels.
Custom compartment enclosures and cabinet variants to print.
Distribution transformers for investor-owned utilities, public power and cooperatives; the padmount fleets being installed at data center campuses and industrial parks; remanufactured and repaired units that need a new or replacement cabinet. Our guide on why transformer OEMs outsource tanks, cabinets and enclosures covers the sourcing decision from the OEM's side.
| Rating construction | NEMA 3R tamper-resistant per OEM / utility standard drawings (ANSI C57.12.28 / C57.12.29 integrity requirements as referenced by the print) |
|---|---|
| Materials | Carbon steel (galvanneal or cold-rolled), stainless 304/316 or aluminum for coastal and corrosive service |
| Gauges | 14 ga through 11 ga typical per drawing |
| Configurations | Single-phase and three-phase; dead-front and live-front; loop and radial feed; hood or door construction |
| Hardware | Penta-head bolts, hasps, recessed handles, stainless hinges, captive fasteners per print |
| Finish | In-house powder coat, Munsell 7GY3.29/1.5 green, ANSI 61/70 gray or specified; IEEE 2000-hour salt-spray rated |
| Welding | AWS D1.3, certified |
| Volume | Hundreds of units per month on a single shift; dedicated lines for program customers |
| Packaging | Wrapped, palletized and labeled for the OEM's assembly line |
| Also specified as | Padmount cabinet, pad-mounted transformer enclosure, transformer compartment enclosure, pad-mount hood, HV/LV cabinet, tamper-resistant transformer cabinet |
Representative capabilities — exact ranges, ratings, and finishes are confirmed per project. Send drawings for a firm quote.
For a recurring program we stand up a dedicated production line: fixtures built to your print, the same operators, monthly capacity reserved against your forecast, and a controlled drawing revision per release. That is how we deliver hundreds of cabinets a month with consistent fit to the tank, and why our OEM customers plan their transformer output around our cabinet schedule rather than the other way round. Our guide on the cost of a stalled line vs. reserved capacity puts numbers on that.
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 — single- and three-phase pad-mount cabinets, hoods, sills and doors fabricated to OEM print at hundreds per month, powder-coated in-house at our Hazlehurst, Mississippi plants.
FabTek supplies pad-mount cabinets and NEMA-rated transformer enclosures to Tier-1 and mid-market transformer OEMs and remanufacturers across North America, on dedicated production lines.
We fabricate to the OEM's or utility's drawing, which references the applicable ANSI integrity requirements; the drawing controls hardware, gauge and construction.
Yes — send the drawings or a sample and we'll fabricate to match, including color and hardware.
Explore related lines: Transformer cabinets · NEMA 3R enclosures · Transformer tanks · Dedicated production lines
Further reading: Why transformer OEMs outsource tanks, cabinets and enclosures · Transformer cabinets for data centers · How to spec a NEMA-rated transformer enclosure
Send your cabinet drawings and monthly volume — we'll quote the program and propose a reserved-line schedule.