Square Box industrial enclosure manufacturing

Custom NEMA-Style Enclosures for Panel Shops

Open NEMA-style wall-mount enclosure with gasketed door and mounting plate

Panel shops often need enclosure sizes, cutouts and mounting details that catalog boxes do not cover. Square Box fabricates NEMA-style custom enclosures from approved drawings.

Engineering procurement notes

Panel shops usually lose time when standard catalog boxes need repeat cutouts, mounting plate work, grounding studs or finish changes before wiring can begin. A drawing-based NEMA-style enclosure package lets those preparation steps move upstream into fabrication.

Who this is for

U.S. panel shops managing overflow work
Control panel builders standardizing repeat enclosure kits
Automation integrators needing custom cutouts and hardware

Typical use cases

Custom wall-mount control boxes
Modified boxes with fan, louver or HMI cutouts
Mounting plates and DIN rail installed before wiring
Repeat enclosure kits packed by job or panel

Files needed for RFQ

STEP / STP
DXF / DWG
PDF drawing
quantity
material
thickness
finish
NEMA/IP target
shipping ZIP
BOM / terminal schedule if required

What Square Box can fabricate / assemble

Wall-mount and outdoor NEMA-style enclosure bodies
Doors, gaskets, locks, hinges and grounding studs
Mounting plates, gland plates, cable entry and fan openings
DIN rail, wire duct and terminal block support by BOM

Inspection points

cutouts
mounting plate
gasket path
grounding studs
terminal layout
surface finish
packaging photos

Compliance note

Built for NEMA-style and IP-rated applications. Final rating depends on design, materials and testing requirements.

Square Box provides custom enclosure fabrication, component mounting and customer-BOM assembly support. Final electrical listing, field acceptance and project compliance depend on the complete design, selected components, testing and certification requirements.

Common panel shop overflow work

HMI and display cutouts
fan and filter openings
cable gland holes
DIN rail and wire duct mounting
custom mounting plates
grounding studs
powder coating after modification
repeat back panels from DXF

Why this work is often outsourced

These jobs are repetitive but detail-sensitive. Moving them into the enclosure fabrication workflow can reduce panel shop drilling, filing, coating repair and layout confirmation time before wiring starts.

Internal procurement paths

Prepare a stronger RFQ package

RFQ checklist

NEMA 4 vs NEMA 4X vs IP65 guide

Inspection photos

Request a quote

FAQ

Custom NEMA-Style Enclosures for Panel Shops FAQ

Are these listed or tested enclosures?

Use cautious project wording: built for NEMA-style and IP-rated applications. Final rating depends on design, materials and testing requirements.

Can cutouts be made before shipment?

Yes. Cutouts, fan openings, cable gland holes, louvers, windows, locks, hinges and mounting plates can be fabricated or installed from approved drawings.

Can panel shops request repeat kits?

Yes. Repeat enclosure kits can be discussed after prototype approval, including labeling, accessory packing and U.S. warehouse support for approved repeat parts.

Upload drawings, BOM or a terminal schedule for review.

Send STEP/STP, DXF/DWG, PDF, quantity, material, thickness, finish, NEMA/IP target, shipping ZIP and any BOM or terminal schedule required for assembly.

Upload Drawing for 24h Quote