SMC Molded Distribution box

SMC molded distribution boxes are an important part of modern electrical distribution systems. They are widely used in residential, commercial, and industrial applications, and offer a number of benefits over traditional metal distribution boxes.


SMC, or Sheet Molding Compound, is a composite material made from a mixture of fiberglass, resin, and other additives. The resulting material is lightweight, strong, and highly resistant to corrosion, making it an ideal choice for use in electrical distribution systems.

One of the main advantages of SMC molded distribution boxes is their durability. Unlike metal boxes, which can rust and corrode over time, SMC boxes are highly resistant to moisture and other environmental factors. This means they can last for many years without needing to be replaced, even in harsh or corrosive environments.

Another advantage of SMC boxes is their resistance to heat and flame. Because they are made from a composite material, they do not conduct electricity, and are therefore less likely to spark or ignite in the event of an electrical fault. This can be particularly important in industrial settings, where the risk of fire or explosion is high.

In addition to their durability and resistance to heat and flame, SMC molded distribution boxes are also easy to install and maintain. They can be easily cut and drilled to accommodate wiring and other components, and can be mounted in a variety of orientations to suit the needs of the installation. Additionally, because they are made from a composite material, they are easy to clean and maintain, and do not require any special coatings or treatments to protect them from the elements.

SMC Molded Distribution Box vs.Plastic Distribution Box and Metal Distribution Box

FeatureSMC Molded Distribution BoxPlastic Distribution BoxMetal Distribution Box
MaterialSMC (Sheet Molding Compound)polycarbonate,ABS,PVCMetal
Corrosion ResistanceExcellentVariesGood to Excellent
Density (g/cm³)1.6-2.00.9-1.37.8-8.0
Temperature ResistanceExcellentVariesGood to Excellent
Flame ResistanceExcellentVariesVaries
Installation TimeQuickQuickSlow
Installation CostLowLowHigh


Despite their many advantages, there are some considerations to keep in mind when using SMC molded distribution boxes. For example, because they are made from a composite material, they may not be suitable for certain applications where extreme temperatures or pressures are involved. Additionally, because they are relatively new to the market, there may be some uncertainty about their long-term performance and durability in certain environments.

SMC molded distribution boxes are available in a wide range of sizes and configurations to meet the needs of different applications. They can be used in residential settings to distribute power to different parts of a house, or in commercial and industrial settings to control the flow of electricity to various machines and equipment.

Some of the most common types of SMC molded distribution boxes include surface-mounted boxes, flush-mounted boxes, and junction boxes. Surface-mounted boxes are typically used in applications where the box needs to be mounted on a wall or other vertical surface, while flush-mounted boxes are designed to be installed flush with the wall. Junction boxes are used to connect two or more wires or cables together, and are often used in industrial or commercial applications.

Overall, SMC molded distribution boxes offer a number of benefits over traditional metal boxes, including durability, resistance to heat and flame, and ease of installation and maintenance. While they may not be suitable for every application, they are a promising new option for electrical contractors and other professionals looking for a reliable, long-lasting solution for their distribution box needs.

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