Custom electrical enclosures are the preferred choice for housing wires, cables, switches, and other sensitive components in harsh industrial operating conditions. They are designed and manufactured to provide corrosion resistance from exposure to salt spray, chemicals, UV radiation, water, and other hazards. Depending on the details of an operation, Selco’s stainless enclosures can be passivated and fitted with specialized gaskets and hardware.

With over 100 years of proven experience, Selco Manufacturing Corp. offers high-quality stainless steel enclosures that effectively protect contents from exposure to corrosive agents, high and low temperatures, debris, and more. Learn more about our enclosure and junction box capabilities for applications in the wastewater treatment, rail, oil and gas, marine, food processing, and medical sectors.

Custom Aluminum Electrical Enclosures

Aluminum is ideal for many electrical applications due to its excellent conductivity and resistance to magnetic forces. For enclosures, aluminum provides a corrosion-resistant, lightweight option for telecommunications, transportation, and outdoor utility installations.

Manufacturers typically use the 3000, 5000, or 6000 series of aluminum alloys, which are known for their superior formability and durability. Selco aluminum cabinets can be customized with the following features:

  • Anodized or powder coated finish.
  • Knockouts (Drilled Holes).
  • Insulation.
  • Removable side panels.
  • Windows and doors.
  • Hinged Covers.

Custom aluminum enclosures can be combined with DIN rails, mounting hardware, and internal brackets to simplify installation, minimize weight, and support electrical assemblies.

NEMA-Rated Enclosures

The National Electrical Manufacturers Association (NEMA) standards for electrical enclosures, defining multiple levels and types of protection against harmful agents that can damage or interfere with critical systems.

With an inherent level of electromagnetic interference (EMI) and radio frequency interference (RFI) attenuation, our NEMA-rated enclosures feature a wide variety of options for hinge styles, door styles, and mounting configurations.

NEMA 4-Rated Enclosures

A NEMA 4 rating ensures the enclosure can withstand these environmental conditions:

  • Falling dirt.
  • Ice formation.
  • Hose-directed water.
  • Snow, sleet, and rain.
  • Splashing water.
  • Windblown dust.

These enclosures are suitable for indoor and outdoor industrial applications where washdown conditions or moisture are present. Selco Manufacturing Corp. fabricates NEMA 4-rated enclosures using robust hardware, sealed seams, and gasketed doors. Floor, pole, or wall mounting options are available, and custom cutouts can be added to meet project specifications.

NEMA 4X Enclosures

NEMA 4X enclosures are ideal for corrosive or harsh environments, such as wastewater treatment, marine, and washdown areas. In addition to the NEMA 4 requirements, a NEMA 4X rating ensures exceptional corrosion resistance.

These enclosures are typically constructed from corrosion-resistant stainless steel alloys or treated metals, with sealed construction and gasketed doors. NEMA 4X electrical enclosures from Selco offer reliable protection against dust, ice, rain, and corrosive agents, and are available in a variety of custom configurations, finish options, and mounting provisions.

NEMA 6P Enclosures

NEMA 6P enclosures resist corrosion and are water-tight, which adds a layer of protection against prolonged submersion for an extended period at a limited depth in oil or water. These enclosures are typically specified for submerged or flood-prone applications, such as manholes, quarries, or mines, where submersion is not continuous.

Selco’s NEMA 6P enclosures feature:

  • Corrosion-resistant materials.
  • Fully welded construction.
  • Gasketed seals.

Mounting configurations and hardware, sealing, and conduit entries are tailored according to project requirements to ensure integrity under splash or submersion conditions.

Hardware and Mounting Brackets for Installation

Often, custom electrical enclosures require customized hardware to facilitate their integration into existing equipment or facilities. Selco Manufacturing Corp. fabricates mounting brackets, messenger supports, and mounting brackets from galvanized steel or aluminum. We also provide finishing options including bolt patterns, surface treatments, and perforations to match project aesthetics. Brackets are available blank or pre-drilled, and are engineered to support cabling stresses, wind loads, and static loads.

Project Spotlight: PATH Tunnels E & F / Exchange Place Station

Recently, Selco Manufacturing Corp. provided a variety of custom aluminum and stainless electrical enclosures and related components for the PATH tunnels (E&F).

The scope of the Exchange Place rail project included:

  • NEMA 4X junction boxes for signal rooms.
  • Stainless wall-mounted enclosures for trackside components.
  • Messenger brackets.
  • Support arms.
  • Hardware (fabricated to spec, finished, welded, and certified).

Ready To Quote Your Custom Enclosure?

With over a century of experience, Selco Manufacturing Corp. has the capabilities and expertise to safeguard America’s most critical infrastructure systems from operational and environmental hazards. Our custom electrical enclosures, cabinets, brackets, housings, and weatherproof junction boxes, including NEMA-rated boxes, are ideal for commercial or industrial use.

Get started today by requesting a quote and let our expert team design a custom solution to meet your specific project needs.