Electrical Plastic Box
Industrial-Grade Electrical Plastic Enclosures — Customized B2B Solutions

As a leading B2B manufacturer, we supply high-performance electrical plastic boxes designed for industrial applications, equipment manufacturers, and professional contractors. Our enclosures offer reliable insulation, IP-rated protection, UV and impact resistance, and full customization options to support complex OEM requirements, automation systems, and bulk project installations.

 

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Screw Type Plastic Box

Screw Type Plastic Box

A durable plastic box with a screw-tightened cover for stable sealing and reliable protection. Ideal for electrical components, wiring terminals, and control modules across various industrial applications.

Learn more about Screw Type Plastic Box

Polyester Enclosure

Polyester Enclosure

Polyester enclosures offer strong, corrosion-resistant protection made from glass-fiber reinforced polyester. Lightweight and weatherproof, they are ideal for outdoor electrical and control systems in demanding industrial environments.

  Learn More About Polyester Enclosure

Draw Latch Type Plastic Box

Draw Latch Type Plastic Box

A practical plastic box with a quick-access draw latch, providing secure closure and easy operation. Suitable for sensors, small controls, and electrical components in industrial and commercial use.

  Learn More About Draw Latch Type Plastic Box

Electrical Plastic Box

 

Custom Manufacturing Service
  • Custom Sizes & Dimensions

Tailor-made enclosure sizes to fit specific electrical components, modules, and installation requirements.

  • Material & Performance Options

Choose from ABS, PC, polyester, and reinforced materials with optional UV resistance, flame retardant grades, and IP protection levels.

  • CNC Machining & Cut-outs

Precision machining for holes, slots, windows, cable entries, mounting structures, and other project-specific modifications.

  • Surface Treatment & Branding

Laser marking, printing, labeling, and color customization to support OEM branding and professional equipment integration.

Product Advantages

Lightweight and Durable for Industrial Use

Electrical plastic enclosures offer a lightweight structure that simplifies handling, installation, and transportation in OEM manufacturing and engineering projects. Despite their low weight, they deliver strong impact resistance, ensuring reliable protection for internal components and extending equipment service life.

Excellent Electrical Insulation

With superior insulation performance, plastic enclosures effectively prevent leakage, short circuits, and electrical failures. This makes them an ideal choice for industrial control units, low-voltage systems, and automation equipment where operational safety is critical.

Strong Corrosion and Environmental Resistance

Plastic materials resist moisture, chemicals, and corrosive substances, making them suitable for harsh or humid environments. They maintain stable performance in outdoor installations, industrial plants, and chemical processing sites, ensuring long-term reliability.

Cost-Effective for Large-Scale Production

Compared with metal enclosures, plastic housings offer significantly lower production costs—especially for large-volume OEM orders. Their high moldability and efficient manufacturing process provide excellent cost-performance ratios for bulk production and customized solutions.

Application of Electrical Plastic Box

Home distribution box

Home distribution box

Industrial equipment control cabinet

Industrial equipment control cabinet

Outdoor street light control box

Outdoor street light control box

Interior of small electrical appliances

Interior of small electrical appliances 

Product Series

Polycarbonate Box CM

Beautiful appearance, excellent processiong and stability shoule be guaranteed by material such as High lntensity ABS, PC, AC Polyester assured Flammibility material amd Glass 30% annexing material.The use is convenient for the installation of Terminal Box, the supply Switchboard,Apparatus Box, electrical power supply and Control Box etc.

Polycarbonate Box CM

Polycarbonate Box CS

The enclosure is according to EN60529 standard, free from carrosion, compressive property and insulation, widely used in electronics, commumications, fire fighing apparatus, control panels, terminal boxes,public accommodation, ship industry,food industry etc.We always give top priority to quality and safety. your satisfaction is guaranteed. Protection degree:lP66 Temperature range: -40ˇto+80ˇABS:Acrulonitrile Butadiene Styrene PC: Poly Carbonate

Polycarbonate Box CS

How to Choose Electrical Plastic Box

  • Material: Choose durable and environmentally adaptable plastic materials, such as polycarbonate (PC), polyester (PE) or ABS, which have good impact resistance, corrosion resistance and electrical insulation.
  • Protection level: Choose the appropriate protection level (IP level) according to the use scenario, such as IP65, IP66, etc., to ensure the protection of the box in moisture, dust or other harsh environments.
  • Size and capacity: Choose the appropriate box size according to the size and number of electrical equipment to ensure that the internal components can be installed and connected safely and conveniently.
  • Installation method: Consider the installation method and choose a suitable fixing method (such as wall hanging, vertical, etc.) to ensure installation stability and convenient operation.
  • Temperature range: Choose a suitable plastic box according to the temperature range of the use environment to ensure its tolerance under high or low temperature conditions.
  • Certification and standards: Choose products that meet relevant safety standards (such as UL, CE, etc.) to ensure safe use and meet quality requirements.

 

Plastic Hinged Plastic Box

Precautions for use

 
  1. Environmental adaptation: Avoid over-temperature, high humidity, corrosion and dusty environments, and choose corresponding protective boxes.
  2. Installation and fixation: The installation surface is flat and firm, fixed with screws, and ensure load-bearing when hanging.
  3. Wiring requirements: Power off wiring, regular lines, sealed interfaces, and terminals matching cables.
  4. Insulation and flame retardant: Select a flame retardant grade UL94 V-0 + box, and check insulation aging regularly.
  5. Load heat dissipation: Do not exceed the rated load (leave 20% margin), and leave heat dissipation space for heating components.
  6. Daily inspection: Check the appearance and internal wiring of the box regularly, and cut off the power immediately if abnormal.
  7. Outdoor use: Use UV-proof boxes, add sunshade and drainage, and do insulation treatment in cold areas.
  8. Explosion-proof scenarios: Explosion-proof certified boxes must be used in flammable and explosive places, and ordinary boxes are prohibited.
  9. Label compliance: The box is marked with warnings and circuit diagrams, which meet safety standards and keep evidence.

Your Trusted Partner for Durable and Customizable Plastic Enclosures

Our products are backed by internationally recognized certifications that reflect our commitment to quality, safety, and sustainability. Each certification ensures that our materials and manufacturing processes meet strict global standards, giving our B2B clients confidence in long-term performance, reliability, and regulatory compliance. By adhering to these high-level requirements, we position ourselves as a trusted partner for businesses worldwide seeking stable supply, consistent quality, and environmentally responsible solutions.

CE
UL
ISO
SGS
TUV
 
 

FAQ

Can electrical plastic boxes be used outdoors?
Whether an electrical plastic box is suitable for outdoor use depends on its protection level (IP rating). Most electrical plastic boxes have a protection level of at least IP65, which means they are effectively dustproof and waterproof. For outdoor use, choose plastic boxes with a higher protection level (such as IP66 or IP67), which can better resist rain, snow and external pollutants, ensuring the long-term safe operation of the equipment.

 

How to choose the size of an electrical plastic box?
When choosing the size of an electrical plastic box, the size of the installed equipment should be taken into consideration first. Make sure there is enough space inside the box to accommodate electrical components, terminal blocks, relays, etc., while leaving some space for heat dissipation. A box that is too small may cause overheating or fail to accommodate all components, while a box that is too large will waste space and affect aesthetics and efficiency. It is ideal to measure the size of the equipment and leave enough installation margin.

 

Can electrical plastic boxes withstand high temperature environments?
The high temperature resistance of electrical plastic boxes depends on the materials used. Common plastics such as polycarbonate (PC) and polyester (PE) have high heat resistance and can withstand high temperature environments within a certain range. If the application scenario is in a high temperature area or the equipment works under high temperature conditions, it is recommended to choose a material with high heat resistance (such as polycarbonate) and check its maximum temperature resistance range. For extremely high temperature environments, special plastic boxes designed for high temperatures can be selected.

 

How to choose the protection level of electrical plastic boxes?
The protection level (IP level) is an important criterion for measuring the dust and water resistance of electrical plastic boxes. Generally, IP65 means that the box prevents dust from entering and can resist the intrusion of low-pressure water flow. For equipment that is often exposed to rain or external moisture, it is recommended to choose IP66 or IP67 protection levels, which can provide stronger waterproof protection. When choosing, it is necessary to determine the required protection level based on environmental conditions (such as whether it is often exposed to water or dust).

 

How to install electrical plastic boxes?
When installing electrical plastic boxes, first ensure that the installation position of the box is appropriate to avoid inconvenience caused by too high or too low. Depending on the design of the box, you can choose wall mounting, base mounting or fixing it on the equipment rack. When installing, make sure that the box is tightly connected to the fixed surface and use appropriate screws, nuts and other fixing accessories. For applications that require high waterproofness, ensure that the box is well sealed to prevent moisture from entering due to improper installation.

 

Can electrical plastic boxes withstand heavy loads?
The load-bearing capacity of electrical plastic boxes mainly depends on their materials and design. Most plastic boxes are suitable for equipment protection with light to medium loads. For applications that carry heavier equipment or high-power electrical components, it is recommended to choose plastic boxes with reinforced structures, or choose metal casings to increase the load-bearing capacity. Plastic itself is usually weaker than metal, so when choosing, it is necessary to evaluate the load requirements to ensure that the electrical box can safely accommodate all components.

 

Does the electrical plastic box meet safety standards?
High-quality electrical plastic boxes usually pass international certifications such as UL and CE. These certifications ensure that the product meets safety standards and quality requirements during the design and manufacturing process. When purchasing, it is recommended to check the certification mark on the product manual or label to confirm whether the product meets the relevant safety standards. Choosing certified products can ensure the long-term safety of the equipment and reduce the risk of electrical failure or fire.

 

 

Find professional electrical plastic box manufacturers and suppliers in China here. We're offering high quality electrical plastic box with competitive price. Welcome to contact our factory for wholesale and customized services.

Latch Hingeed Type Plastic Box, Waterproof Wall Mount Enclosure Distribution Box

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