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Enclosure Corrosion Inhibitors

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Electrical enclosures are designed to house and protect internal components from the surrounding environment. Even with a sealed enclosure, water and moisture can sometimes enter and accumulate resulting in corrosion. Corrosion on electrical circuitry can cause excessive resistance, malfunctions and electrical failure. When it comes to corrosion on electrical components, prevention is better than replacement.

Corrosion inhibitors are designed to protect electrical components inside an enclosure against corrosion. They are easy to use with no surface preparation required. The protected equipment can be used immediately without coating removal or degreasing. Each inhibitor contains a unique chemical combination that vaporizes and condenses on all surfaces in the enclosed area. The vapors reach every part of an enclosure, protecting all components inside. The vapors will redeposit as needed in the event of moisture or condensation on surfaces. The protection is effective in saltwater atmospheres and does not interfere with optical, mechanical or electrical surface properties.

Hoffman AHCI238S Spray Corrosion Inhibitor 50 CF

$84.26 $103.22

Hoffman AHCI238S Spray Corrosion Inhibitor

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Hoffman AHCI240R Tape Corrosion Inhibitor 240 CF

$539.08 $660.40

Hoffman AHCI240R Tape Corrosion Inhibitor 240 CF

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Hoffman AHCI60R Tape Corrosion Inhibitor 60 CF

$168.72 $206.70

Hoffman AHCI60R Tape Corrosion Inhibitor 60 CF

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Hoffman AHCI10E Emitter Corrosion Inhibitor 10 CF

$38.30 $46.93

Hoffman AHCI10E Emitter Corrosion Inhibitor (Must buy packs of 12) Emitter protects 10 ft. 3 (283 liters) of enclosure volume for approximately two years from the date of manufacture. Emitters contain additional red metal (non-ferrous) inhibitors.

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Hoffman AHCI5E Emitter Corrosion Inhibitor 5 CF

$30.87 $37.83

Hoffman AHCI5E Emitter Corrosion Inhibitor (Must buy packs of 25) Emitter protects 5 ft. 3 (142 liters) of enclosure volume for approximately two years from the date of manufacture. Emitters contain additional red metal (non-ferrous) inhibitors.

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Hoffman AHCI1DV Foam Corrosion Inhibitor 1 CF

$10.08 $12.35

Hoffman AHCI1DV Foam Corrosion Inhibitor (Must buy packs of 50) Foam device protects one cubic foot (28 liters) of enclosure volume for approximately one year. Size: .25 x 1.25 x 3.00 in.

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Enclosure Selection Basics

Electrical enclosures are cabinets that are designed to house electrical components. Their main function is to protect the components, as well as to protect the operators from electrical hazards. Enclosures are typically made of solid plastics, fiberglass and metal materials, such as carbon steel, stainless steel and aluminum.

One of the most important things to consider when selecting an electrical enclosure is the NEMA rating. NEMA stands for National Electrical Manufacturer Association. They have developed a rating system which determines the types of environments an electrical enclosure can be used in.

NEMA 1 and a NEMA 12 enclosures

Both of these enclosures are intended for indoor use only. They are both dust resistant. The NEMA 12 enclosure is rated for damp environments. The NEMA 1 is rated only for dry environments.

NEMA 4 and NEMA 4X enclosures

Both of these enclosures can be used indoors as well as outdoors. They are both dust resistant. They are also water resistant and corrosion resistant. NEMA 4X has an extra layer of corrosion resistance.

NEMA 7 enclosures

This is a more specific type of enclosure that is rated for use in hazardous environments. It is rated to contain an explosion within the enclosure and not cause any sort of external hazard.

Size

When selecting the size of an enclosure, it is important to consider the following: how much space will the electrical components occupy, how much space is needed around each component, is there enough room to run all of the wires and how much space is needed outside of the enclosure?

Temperature

When selecting an enclosure, it is important to consider both the ambient temperature and the temperature that is generated inside of the enclosure. When an enclosure is located outside in direct sunlight, that heat can be transferred inside the enclosure. Also, each component inside of the enclosure generates a certain amount of heat.

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