Custom PVC Junction Box Manufacturer in China
As a leading manufacturer, we provide a diverse selection of PVC junction boxes, offering a lightweight, durable, and corrosion-resistant solution for your electrical wiring needs. Our PVC enclosures are ideal for various indoor and some outdoor applications, providing excellent protection for connections in damp or corrosive environments. Choose from a range of sizes and configurations to meet your specific project requirements, ensuring a cost-effective and reliable wiring management solution.
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Linkwell Electronics - Your Trusted PVC Junction Box Manufacturer from China
Linkwell Electronics in China is a trusted PVC junction box manufacturer. We specialize in producing lightweight, durable, and corrosion-resistant PVC enclosures suitable for diverse electrical applications. Partner with us for reliable and cost-effective PVC junction box solutions tailored to your project needs, backed by our manufacturing expertise. Contact us for dependable wiring management components.
Various PVC Junction Box

outdoor PVC junction box
As a reliable junction box supplier, we offer a range of outdoor PVC junction boxes specifically designed to withstand the elements. These enclosures provide a lightweight, durable, and corrosion-resistant solution for your exterior electrical connections. Our outdoor-rated PVC boxes feature weatherproof construction to protect wiring from rain, moisture, and UV exposure, ensuring long-lasting performance and safety in demanding outdoor environments. Choose from various sizes and configurations to meet your specific project needs.

PVC electrical junction box
We supply electrical PVC junction boxes, offering a lightweight, durable, and non-conductive solution for your wiring needs. Ideal for residential, commercial, and industrial applications, our PVC boxes provide excellent protection against moisture and corrosion. Choose from various sizes and configurations to ensure secure and organized electrical connections. Benefit from our reliable supply and cost-effective PVC junction box options for your projects.

PVC electrical conduit junction box
As a premier junction box supplier, we offer a wide range of PVC electrical conduit junction boxes designed for durability and ease of installation. Our boxes provide a secure and corrosion-resistant enclosure for conduit connections in various electrical systems. Choose from multiple sizes and configurations to meet your specific project needs, ensuring a reliable and cost-effective solution for your conduit runs.

nema 4 PVC junction box
As a junction box supplier, we offer a range of NEMA 4 rated PVC junction boxes, providing exceptional protection against dust, splashing water, and hose-directed water. These enclosures are ideal for both indoor and outdoor applications where moisture and environmental factors are a concern. Our NEMA 4 PVC junction boxes ensure the safety and longevity of your electrical connections in demanding conditions. Explore our selection for reliable and compliant solutions.

PVC round junction box
We provide a variety of PVC round junction boxes, offering a lightweight, non-conductive, and corrosion-resistant solution for your electrical connections. These round enclosures are particularly useful for specific lighting fixture installations or when a circular aesthetic is desired. Our PVC round junction boxes ensure secure wiring and protection in various indoor applications. Explore our range for a cost-effective and practical wiring solution.

PVC weatherproof junction box
We offer a range of PVC weatherproof junction boxes specifically designed to protect your electrical connections in outdoor and damp environments. These enclosures are constructed from durable, UV-resistant PVC, ensuring long-lasting performance against the elements. Featuring watertight seals and robust construction, our weatherproof junction boxes provide a secure and code-compliant solution for your exterior wiring needs, safeguarding against moisture, dust, and corrosion.

hinged PVC junction box
We supply a versatile range of PVC hinged junction boxes designed for easy access and secure protection of your electrical connections. These enclosures feature a convenient hinged lid, allowing for quick and effortless entry for wiring, inspection, or maintenance. Constructed from durable PVC, they offer excellent resistance to corrosion, moisture, and dust, making them suitable for various indoor and some outdoor applications. Choose from our selection of sizes to find the ideal hinged PVC junction box for your project needs.

3 way PVC junction box
We provide reliable PVC 3-way junction boxes designed for efficient and organized wiring connections. These enclosures, crafted from durable and corrosion-resistant PVC, are ideal for creating three-way splices or branch circuits in various electrical installations. Our 3-way PVC junction boxes ensure secure wire management and protection in residential, commercial, and industrial applications. Explore our range for a cost-effective and dependable solution for your wiring needs.

4 way PVC junction box
We offer a variety of PVC 4-way junction boxes designed for efficient and organized wiring connections. These boxes, typically featuring multiple entry points, allow for the connection of conduits or cables from four different directions. Constructed from durable, non-conductive PVC, they provide excellent protection for your electrical connections, particularly in environments where corrosion resistance is crucial. Explore our range of sizes to find the ideal 4-way PVC junction box for your residential or commercial projects.

pvc junction box with terminal block
As a specialized junction box manufacturer, we supplyPVC junction boxes integrated with convenient terminal blocks. These all-in-one units streamline wiring connections, offering a durable and corrosion-resistant solution for your electrical projects. Our PVC boxes with terminal blocks simplify installation and provide organized termination points, ensuring reliable and safe electrical connections in various applications. Explore our range for efficient wiring management.

PVC square junction box
We supply different PVC square junction boxes, offering a lightweight, durable, and corrosion-resistant solution for your electrical wiring needs. Their square design provides ample space for multiple connections and easy device mounting with adapter rings. Ideal for indoor and damp environments, our PVC square boxes ensure reliable protection and simplified installation. Explore our selection for cost-effective and code-compliant wiring solutions.
Different PVC Junction Box Sizes
Explore our extensive inventory of PVC junction boxes, available in a wide array of sizes to perfectly accommodate your diverse wiring requirements. From compact enclosures for simple connections to larger boxes for more complex setups, our selection ensures you’ll find the ideal fit for any residential, commercial, or industrial project. Benefit from our durable and corrosion-resistant PVC solutions.

10x10x4 PVC junction box
We offer a robust 10x10x4 inch PVC junction box, ideal for providing ample wiring space and excellent protection in various electrical applications, particularly in damp or corrosive environments. Constructed from durable and non-conductive PVC, this enclosure is lightweight, easy to modify, and resistant to rust. Featuring multiple knockout options for versatile cable entry, our 10x10x4 PVC junction box ensures a reliable and cost-effective wiring management solution for your project.

10x10x4 PVC junction box
We offer a robust 10x10x4 inch PVC junction box, ideal for providing ample wiring space and excellent protection in various electrical applications, particularly in damp or corrosive environments. Constructed from durable and non-conductive PVC, this enclosure is lightweight, easy to modify, and resistant to rust. Featuring multiple knockout options for versatile cable entry, our 10x10x4 PVC junction box ensures a reliable and cost-effective wiring management solution for your project.

12x12 PVC junction box
Linkwell offers a range of durable 12×12 PVC junction boxes. These lightweight and corrosion-resistant enclosures provide ample space for wiring in various indoor and some outdoor applications. Benefit from a cost-effective solution for protecting your electrical connections with our reliable 12×12 PVC junction boxes. Contact us for specific product details and availability.

16x16 PVC junction box
We offer a robust 16×16 inch PVC junction box, providing a spacious and corrosion-resistant enclosure for your larger electrical wiring needs. Constructed from durable PVC material, this box is ideal for indoor and damp environments, offering excellent protection for numerous connections. Its ample size simplifies complex wiring layouts, ensuring a safe and organized installation for your commercial or industrial projects. Explore the capacity and reliability of our 16×16 PVC junction box solution.

18x18 PVC junction box
We offer a robust 18×18 inch PVC junction box, providing a spacious and corrosion-resistant enclosure for your larger electrical wiring needs. Ideal for both indoor and protected outdoor applications, this durable PVC box offers ample room for complex connections and facilitates easy wire management. Benefit from the lightweight yet sturdy construction and multiple knockout options for versatile conduit entry. Choose our 18×18 PVC junction box for a reliable and cost-effective solution.

24x24 PVCjunction box
We offer robust 24×24 inch PVC junction boxes, ideal for applications requiring substantial wiring space and excellent corrosion resistance. These large enclosures provide ample room for complex wire connections and offer reliable protection against moisture and chemical exposure. Constructed from durable PVC, they are a lightweight yet sturdy solution for various indoor and outdoor electrical installations, ensuring long-lasting performance and simplified maintenance.
Why Choose Our PVC Junction Box
Specific Dimensions and Shape
We understand that standard sizes may not always fit your project requirements. Therefore, we offer the flexibility to customize the height, width, and depth of your PVC junction boxes. Additionally, we can accommodate requests for non-standard shapes to seamlessly integrate with your specific installation environment or equipment layout, ensuring a perfect fit and optimized functionality for your unique needs.
Custom Knockout Configurations
To ensure efficient and organized wiring, you can specify the number, size, and precise locations of knockouts on your PVC junction boxes. This customization allows for optimal conduit and cable entry points, minimizing unnecessary bends and streamlining your wiring runs. Tailoring the knockouts to your exact specifications simplifies installation and maintains the integrity of the enclosure against dust and moisture ingress.
Specialized Colors and Labels
While our standard PVC junction boxes come in typical electrical colors, we can provide custom color options to match specific aesthetic requirements or for easy circuit identification. Furthermore, we offer the option to include custom labels or markings directly on the box. This personalization can aid in organization, safety, and compliance with project-specific labeling standards, enhancing the overall professionalism of your installation.
Integrated Mounting Features
To simplify installation across various surfaces, we can incorporate specific mounting features directly into the design of your PVC junction boxes. This includes options such as pre-drilled holes in custom patterns, integrated mounting brackets, or specialized flanges. Tailoring the mounting features to your application ensures a secure and efficient installation process, saving time and labor while providing a stable and reliable enclosure for your electrical connections.
what are PVC junction boxes?
PVC junction boxes are electrical enclosures made from polyvinyl chloride (PVC), a type of plastic known for its durability, lightweight nature, and resistance to corrosion.
These junction boxes PVC serve the fundamental purpose of housing and protecting electrical wire connections, providing a safe and organized space for joining wires and mounting electrical devices like switches or outlets when used with appropriate covers or adapter rings. Their non-conductive material eliminates the need for grounding the box itself, simplifying certain aspects of installation.
what are benefits of PVC junction box?
PVC junction boxes offer a compelling alternative to metal enclosures in various electrical applications. Their unique properties, including resistance to corrosion, lightweight nature, and non-conductive material, provide distinct advantages that can lead to safer, more efficient, and cost-effective electrical installations, particularly in specific environmental conditions and project requirements.
Understanding these benefits is key to making informed decisions for your wiring needs.
Excellent Corrosion Resistance: PVC is inherently resistant to rust, chemicals, and moisture, making these boxes ideal for damp or corrosive environments where metal enclosures might degrade over time. This ensures a longer lifespan for the enclosure and better protection for the electrical connections within, reducing the need for frequent replacements and maintenance in challenging conditions.
Lightweight and Easy to Install: Compared to metal boxes, PVC junction boxes are significantly lighter, making them easier to handle and install, especially in overhead or hard-to-reach locations. They are also typically easier to modify, such as drilling knockouts for cable entries, often requiring simpler tools and less effort, which can save time and labor during electrical installations, particularly for DIY projects.
Non-Conductive Material for Enhanced Safety: PVC is a non-conductive material, providing an added layer of safety against accidental electrical shocks. Unlike metal boxes, there’s no need to ground the enclosure itself, simplifying the wiring process in certain applications. This inherent insulation property reduces the risk of energizing the box in the event of a fault, contributing to a safer electrical system overall.
Cost-Effective Solution: PVC junction boxes are generally more affordable to purchase than metal boxes of comparable size and functionality. This cost-effectiveness can lead to significant savings, especially in large-scale residential or commercial projects requiring numerous junction boxes. The lower material cost, combined with potentially easier installation, makes PVC a budget-friendly option for many electrical wiring needs.
what Is PVC junction box used for?
PVC junction boxes serve as protective enclosures for electrical wire connections, ensuring safety and organization within electrical systems. Their primary use is to house wire splices, protecting them from environmental factors like moisture and dust, and preventing accidental contact.
Additionally, they can act as mounting points for light fixtures, switches, and outlets, often requiring specific covers or adapter rings to accommodate these devices. Due to PVC’s non-conductive nature, these boxes are particularly useful in damp or corrosive environments.
- Housing wire splices and connections.
- Providing junction box mounting points for electrical devices.
- Offering protection in damp or corrosive locations.
- Facilitating organized wiring distribution.
How to choose PVC junction boxes?
Selecting the right PVC junction box involves considering several key factors to ensure it meets the specific requirements of your electrical installation.
First, determine the necessary size and capacity based on the number and size of wires that will be housed within the box, as well as any devices or connections that need to fit. Electrical codes specify fill capacity to prevent overcrowding, which can lead to overheating and unsafe conditions.
Also, consider the environment where the box will be installed; for damp or outdoor locations, ensure the PVC box has an appropriate NEMA or IP rating for water and dust ingress protection.
Furthermore, evaluate the knockout configuration of the box. Choose a box with the appropriate number and size of knockouts needed for your conduit or cable entries.
Consider whether you need threaded or non-threaded knockouts based on your wiring methods.
Finally, factor in the mounting requirements; some PVC boxes have integral mounting ears or brackets for easy surface mounting, while others may require additional hardware. Selecting a box with suitable mounting features will ensure a secure and stable installation.
Here are key factors to consider to select your desired PVC junction box:
- Size and Capacity: Ensure the box has sufficient internal volume to accommodate all wires, splices, and devices without exceeding fill capacity regulations.
- Environmental Rating: Select a box with an appropriate NEMA or IP rating for the intended location, especially for damp or outdoor environments requiring protection against water and dust.
- Knockout Configuration: Choose a box with the right number, size, and type (threaded or non-threaded) of knockouts for your specific conduit and cable entry needs.
- Mounting Requirements: Consider how the box will be mounted (surface, flush, etc.) and select a box with suitable integrated mounting features or plan for necessary hardware.
can you bury a PVC junction box?
While PVC junction boxes are renowned for their durability and resistance to corrosion in various environments, the general consensus within electrical codes and best practices advises against directly burying standard PVC junction boxes underground. The primary reason is accessibility.
Electrical codes typically require that junction boxes remain accessible without needing to excavate sidewalks, paving, earth, or other substances used to establish the finished grade. This accessibility is crucial for inspection, maintenance, and future modifications to the wiring.
However, there are exceptions and specific types of PVC enclosures designed and listed for direct burial applications, often referred to as handholes or underground enclosures. These specialized boxes are built to withstand the rigors of being buried, including pressure from the soil and potential moisture exposure.
If a PVC junction box is specifically listed and rated for direct burial, and its location is effectively identified and accessible for potential excavation (often with the cover exposed), then it may be permitted according to local electrical codes.
Always consult local codes and use products specifically designed and listed for underground use to ensure safety and compliance.
How to Connect PVC Conduit to Junction Box?
Connecting PVC conduit to a junction box is a fundamental skill in electrical installations, ensuring a secure and protected pathway for wiring. This process involves selecting the correct fittings, preparing the conduit ends, and properly securing the conduit to the junction box to maintain a watertight and code-compliant system.
Following these steps carefully will result in a reliable and safe electrical raceway.
Step 1: Select the Appropriate PVC Conduit Fittings
Choose the correct type and size of PVC conduit fittings for your application. Common fittings include PVC couplings to join conduit sections, PVC elbows for bends, and PVC male adapters to terminate the conduit into the junction box.
The male adapter has one end that solvent-welds to the PVC conduit and the other end that is threaded to screw into a knockout on the junction box, secured with a locknut. Ensure all fittings are the same trade size as your PVC conduit for a proper fit.
Step 2: Prepare the PVC Conduit End
Cut the PVC conduit to the desired length using a PVC cutter or a fine-toothed saw, ensuring a clean, square cut. Use a deburring tool or a utility knife to remove any sharp edges or burrs from both the inside and outside of the cut end.
This step is crucial for ensuring a smooth insertion into the fittings and preventing damage to the wires as they are pulled through the conduit later. A clean, deburred end will also allow for a better solvent weld.
Step 3: Apply PVC Primer and Solvent Cement
Clean the inside of the PVC fitting socket and the outside of the conduit end with PVC primer. Apply the primer liberally, as it softens the PVC surfaces for a stronger weld.
Immediately after priming, apply PVC solvent cement evenly to both the inside of the fitting socket and the outside of the conduit end. Work quickly, as the solvent cement sets relatively fast. Ensure a generous and even coating for a secure and watertight bond.
Step 4: Insert and Secure the Conduit into the Fitting
While the solvent cement is still wet, firmly insert the prepared end of the PVC conduit straight into the socket of the PVC fitting with a slight twisting motion. Push the conduit in until it bottoms out in the socket.
Hold the conduit and fitting together firmly for about 15-30 seconds to allow the solvent cement to bond the PVC materials securely. Avoid any movement during this initial bonding period to ensure a strong and watertight joint.
Step 5: Attach the Male Adapter to the Junction Box
Once the male adapter is solvent-welded to the PVC conduit, remove the knockout of the appropriate size from the metal or PVC junction box. Insert the threaded end of the PVC male adapter through the knockout from the outside of the box.
On the inside of the junction box, thread a locknut onto the male adapter and tighten it securely with pliers or a wrench. This locknut will hold the PVC conduit firmly to the junction box, providing a stable and code-compliant termination point for your conduit run.
How to use PVC Junction Box?
PVC junction boxes are versatile components in electrical systems, providing safe and organized enclosures for wire connections. Their non-conductive and corrosion-resistant properties make them suitable for various indoor and some outdoor applications.
Understanding their proper usage ensures a safe, code-compliant, and long-lasting electrical installation for both residential and commercial projects.
Housing Wire Splices and Connections
The primary use of a PVC junction box is to provide a protective enclosure for electrical wire splices and connections. Wires are joined within the box using appropriate connectors, shielding them from physical damage, moisture, and dust. This ensures the longevity and reliability of the electrical circuit by maintaining secure and insulated connections, preventing shorts or accidental disconnections.
Mounting Electrical Devices
PVC junction boxes can also serve as mounting points for various electrical devices such as light fixtures, switches, and receptacles. Often, adapter plates or specific covers designed for PVC boxes are used to create a suitable mounting surface for these devices. This provides a secure and stable platform for the device while also enclosing the necessary wiring connections.
Facilitating Wiring Distribution
In more complex electrical installations, PVC junction boxes act as distribution points, allowing for the splitting and routing of wires to different parts of a building or system. Multiple conduits or cables can enter and exit the box through knockouts, enabling organized and protected pathways for electrical circuits to reach their intended destinations.
Protection in Specific Environments
Due to PVC’s inherent resistance to moisture and many chemicals, PVC junction boxes are particularly well-suited for use in damp locations like bathrooms, kitchens, or outdoor areas (when using appropriately rated boxes). They protect the electrical connections from corrosion and water damage, ensuring the safety and functionality of the electrical system in challenging environments.
PVC junction box types
PVC Junction Boxes are available in a variety of types, each designed for specific applications and environmental conditions. Understanding these different types is crucial for selecting the most appropriate enclosure for your electrical wiring needs, ensuring safety, durability, and code compliance in various settings.
Standard Square and Rectangular Junction Boxes
These are the most common types of PVC junction boxes, used primarily for housing wire splices and mounting devices like switches and outlets in residential and light commercial applications.
Square junction boxes offer more wiring capacity, while rectangular junction boxes are ideal for single or multi-gang device installations. They come in various depths to accommodate different wire fill requirements and are typically designed for indoor use or protected outdoor locations.
Weatherproof and Outdoor-Rated Junction Boxes
For outdoor installations or damp environments, weatherproof PVC junction boxes are essential. These boxes are designed with features like watertight covers, gaskets, and sealed hubs to prevent water and dust ingress, protecting the internal wiring and connections from the elements. They often carry NEMA or IP ratings indicating their level of protection against environmental factors, ensuring safe and reliable outdoor electrical systems.
PVC Conduit Bodies (LB, LL, LR, C, T) as Junction Boxes
PVC conduit bodies, often serving as junction boxes within a conduit run, are specialized types designed to provide access to raceways for wire pulling, splicing, and making bends.
Different shapes like LB, LL, LR, C, and T serve specific directional changes in conduit runs. They typically have removable covers for easy access and are sized to match the conduit they are used with, ensuring a continuous and protected pathway for electrical conductors.
Specialty and Application-Specific PVC Junction Boxes
Beyond the standard types, there are various specialty PVC junction boxes designed for specific applications. These can include floor boxes for in-floor wiring, pull boxes for long conduit runs, and boxes with specific mounting configurations or integrated features for particular devices or installations.
The selection of these specialized junction boxes depends heavily on the unique requirements of the electrical project and the environment in which they will be used.
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All-in-one PVC Junction Box Solutions for Your Project
Our all-in-one PVC junction box solutions provide a lightweight, durable, and corrosion-resistant foundation for your electrical projects. With a wide range of sizes and configurations, including weatherproof options, we offer versatile enclosures for diverse wiring needs. Simplify your installations with our reliable and cost-effective PVC junction box solutions, ensuring secure and organized connections for any residential or commercial application.