Electrical Enclosures

Electrical Enclosures are boxes or a cabinets that house electrical equipment and are designed to protect both workers and sensitive components from potential electrical hazards. Enclosures can be made from metals, such as steel, stainless steel and aluminum, or rigid plastics.

Electrical enclosures must operate under extreme environments in various industrial settings. Some things to consider when selecting the appropriate enclosure: strength, heat tolerance, corrosion resistance, ease of fabrication and affordability.

Steel Enclosures have a higher carbon content than stainless steel, which results in a relatively high yield strength, but lower tensile strength. It also requires additional finishing (paint or powder coating) to prevent corrosion. Steel enclosures tend to be more affordable than stainless steel enclosures.

Stainless Steel Enclosures contain a higher chromium content than regular steel, which prevents corrosion. These enclosures are often found in many industrial setting due to their ability to protect against moisture, corrosion and extreme temperatures.

Non-metallic Enclosures are most commonly made of polycarbonate or ABS (a thermoplastic). These both provide chemical and corrosion resistance, impact protection, electrical insulation, and great strength to weight ratio.

Aluminum Enclosures are made of an aluminum alloy that is naturally resistant to corrosion and is not reactive to magnetic force, which makes these enclosures able to shield against radio frequency interference and electromagnetic interference. Aluminum has high tensile strength and is lightweight compared to steel.