Custom NEMA and Class I Division 2 Enclosures Built to Specification

Larson Electronics manufactures custom steel, aluminum, and stainless steel electrical enclosures for industrial, commercial, utility, marine, and hazardous location applications. Enclosures can be built in custom sizes, custom layouts, and NEMA configurations up to NEMA 4X.

We build enclosures around your project requirements, including material, dimensions, conduit entry locations, mounting style, internal component layout, door configuration, finish, and hazardous location classification.

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Steel, aluminum, 304 stainless steel, and 316 stainless steel builds
Custom NEMA enclosure configurations up to NEMA 4X
Class I Division 2 enclosure assemblies built to customer specifications

To speed quoting, include drawings, photos, target dimensions, material, NEMA rating, hazardous location classification, component layout, conduit entry locations, quantity, and timeline.

What we build

Custom NEMA Enclosures

Indoor, outdoor, wet location, washdown, and corrosion-resistant enclosures built in NEMA configurations up to NEMA 4X.

Class I Division 2 Enclosures

Hazardous location enclosure assemblies built to spec for areas where flammable gases or vapors may be present under abnormal conditions.

Made-to-Spec Cabinets

Wall-mounted, floor-mounted, hinged-door, double-door, removable-cover, control, junction, and equipment enclosures.

Custom Enclosure Material Options

Material	Common Use	Typical Application
Carbon Steel	Durable industrial enclosure construction	Control cabinets, power distribution enclosures, electrical equipment housings
Aluminum	Lightweight corrosion-resistant construction	Outdoor equipment, marine-adjacent locations, weight-sensitive installations
304 Stainless Steel	Corrosion-resistant enclosure construction	Washdown areas, wastewater, food processing, and outdoor industrial use
316 Stainless Steel	Higher corrosion resistance for harsh environments	Marine, coastal, chemical, refinery, offshore, and corrosive industrial locations

Material selection can be matched to corrosion exposure, environmental conditions, washdown requirements, project specifications, and facility standards.

NEMA Configurations Up to NEMA 4X

Indoor and General Purpose

Custom enclosures for controls, terminal blocks, relays, switches, meters, and facility electrical equipment.

Outdoor and Washdown

Weather-resistant and watertight builds for exposed industrial sites, utilities, equipment yards, and processing areas.

NEMA 4X Corrosion Resistance

Stainless steel and aluminum enclosure builds for corrosive, wet, marine, chemical, and coastal environments.

Class I Division 2 Enclosures Built Around the Application

Larson Electronics can build Class I Division 2 enclosure assemblies around customer-specified components and layouts. Common options include terminal blocks, control components, relays, disconnects, instrumentation, communication equipment, sensors, operators, indicators, internal mounting panels, DIN rail, gland plates, conduit hubs, viewing windows, padlockable latches, and custom cutouts.

For related hazardous location products, view our explosion proof junction boxes and enclosures.

Fabrication Capabilities

Laser Cutting

Precision cutting supports custom dimensions, openings, panel layouts, vent patterns, mounting holes, and component cutouts.

Press Brake Forming

Custom bending and forming allow enclosure bodies, doors, flanges, mounting tabs, and covers to be built to project dimensions.

Welding and Assembly

Welded enclosure construction supports durable industrial builds, custom mounting features, reinforced designs, and application-specific assemblies.

Information That Helps Us Quote Quickly

Size and Layout

Width, height, depth, mounting style, door configuration, internal component layout, conduit entries, and required cutouts.

Material and Rating

Steel, aluminum, 304 stainless steel, 316 stainless steel, NEMA rating, environmental exposure, and finish requirements.

Classification and Timeline

Class I Division 2 requirements, drawings, photos, quantity, approval process, target delivery date, and project specifications.

Custom Enclosure Quote Support

Larson Electronics can build custom electrical enclosures for industrial, utility, marine, processing, manufacturing, and hazardous location applications. Submit your specifications and our team can review the enclosure requirements for quoting.

Get a Quote