Custom Plastic Junction Box Manufacturer in China
We offer a wide selection of durable and versatile plastic junction boxes, providing a cost-effective solution for various electrical applications. Our lightweight and corrosion-resistant plastic enclosures ensure safe and organized wire connections for both residential and commercial projects. Choose from a range of sizes and configurations to meet your specific needs, offering easy installation and reliable protection for your electrical systems. Explore our comprehensive plastic junction box solutions.
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Linkwell Electronics - Your Trusted Plastic Junction Box Manufacturer from China
Linkwell Electronics, a leading manufacturer based in China, is your reliable source for high-quality plastic junction boxes. We specialize in producing durable, lightweight, and corrosion-resistant enclosures for diverse electrical applications. Benefit from our expertise in manufacturing cost-effective and dependable plastic junction box solutions tailored to your project requirements. Partner with Linkwell for your connectivity needs.
Various Plastic Junction Box
plastic electrical junction box
We offer a comprehensive range of plastic electrical junction boxes, providing lightweight, durable, and corrosion-resistant solutions for your wiring needs. Ideal for residential and commercial applications, our boxes ensure safe and organized connections. Choose from various sizes and configurations for easy installation and reliable protection. Explore our cost-effective plastic electrical junction box options for your projects.
plastic junction box with cover
We offer a comprehensive range of plastic junction boxes complete with fitted covers, providing a secure and protective enclosure for your electrical connections. Our lightweight, durable, and corrosion-resistant boxes ensure safety and organization for residential and commercial wiring projects. Choose from various sizes and configurations, knowing each comes with a cover for added protection against dust, moisture, and accidental contact. Explore our reliable plastic junction box solutions with included covers.
outdoor plastic electrical junction box
We offer robust outdoor electrical junction boxes made from durable, weather-resistant plastic. Our enclosures provide excellent protection against rain, snow, UV rays, and dust, ensuring safe and reliable connections for your outdoor wiring needs. Choose from a variety of sizes and configurations designed to withstand harsh environmental conditions. Simplify your outdoor electrical projects with our dependable plastic junction box solutions.
4x4 plastic junction box
We offer durable and versatile 4×4 inch plastic junction boxes, ideal for various residential and light commercial electrical applications. These lightweight and corrosion-resistant enclosures provide ample space for wire connections and offer easy installation. Choose our 4×4 plastic junction boxes for a cost-effective and reliable solution to protect and organize your wiring, ensuring safety and code compliance for your projects. Explore our range for your specific needs.
12x12x6 plastic junction box
We offer durable 12x12x6 inch plastic junction boxes, providing ample space for organizing and protecting multiple wire connections. Constructed from high-quality, corrosion-resistant plastic, these enclosures are lightweight and easy to install, making them ideal for various indoor and some outdoor applications. Their generous size accommodates complex wiring configurations, ensuring a safe and organized electrical system for your project needs. Explore our reliable 12x12x6 plastic junction box solutions.
2 gang plastic junction box
We offer a range of 2-gang plastic junction boxes designed for various electrical installations. These boxes provide a durable, lightweight, and corrosion-resistant solution for safely connecting wires for outlets, switches, and other devices. Our 2-gang plastic junction boxes are easy to install and offer ample space for wiring, ensuring a reliable and code-compliant electrical system for your residential or commercial projects. Explore our selection for quality and value.
ABS plastic junction box
We offer durable ABS plastic junction boxes, ideal for various electrical and electronic applications. Featuring an integrated mounting plate, our enclosures simplify component installation and provide a secure platform for your circuitry. The robust ABS material offers excellent impact resistance and electrical insulation. Choose our reliable solutions for organized and protected connections in your projects.
black plastic junction box
We offer black plastic junction boxes, providing a durable and aesthetically discreet solution for your electrical installations. Our lightweight and corrosion-resistant black enclosures ensure safe and organized wire connections for both indoor and outdoor applications. Choose from various sizes and configurations to seamlessly integrate with your project’s design while providing reliable protection for your electrical systems. Explore our comprehensive black plastic junction box solutions.
grounding plastic junction box
We offer a range of grounding-ready plastic junction boxes designed for safe and reliable electrical installations. While plastic itself is non-conductive, our boxes feature integrated grounding terminals and provisions for secure connection of grounding conductors. This ensures proper grounding continuity within your system, enhancing safety and code compliance. Explore our selection of durable and versatile plastic junction boxes with built-in grounding solutions for your project needs.
plastic ceiling fan junction box
We offer specialized plastic junction boxes designed specifically for ceiling fan installations. These boxes provide secure mounting and wiring connections required for safe and reliable ceiling fan operation. Our lightweight yet robust plastic construction ensures durability and ease of installation, while meeting relevant safety standards. Choose from various sizes and configurations to suit different fan models and ceiling structures, providing a dependable solution for your ceiling fan projects.
plastic conduit junction box
We offer a wide range of plastic conduit junction boxes, designed for seamless integration with PVC and other non-metallic conduit systems. These lightweight, durable, and corrosion-resistant boxes provide secure connection points and protect wiring in various environments. Our selection includes multiple sizes and configurations to ensure efficient and code-compliant installations for residential, commercial, and industrial applications. Explore our solutions for reliable conduit connections.
plastic drainage junction box
We offer durable plastic drainage 3 way junction boxes, specifically designed for managing and directing water flow in various drainage systems. Our lightweight yet robust plastic construction ensures excellent corrosion resistance and long-lasting performance in underground applications. Choose from a range of sizes and configurations to effectively control stormwater runoff and wastewater, providing reliable and cost-effective drainage solutions for your projects. Explore our selection for optimal water management.
plastic junction box for light fixture
We offer a range of lightweight and durable plastic junction boxes for light fixture installations. These boxes provide secure and organized wiring connections for various lighting applications, ensuring safety and ease of installation. Our plastic boxes are corrosion-resistant and available in multiple sizes and configurations to accommodate different fixture types and wiring needs. Choose our reliable solutions for your lighting projects.
plastic junction box with knockouts
We offer full range of plastic junction boxes equipped with convenient knockouts for easy cable entry. Our lightweight and durable enclosures provide a cost-effective and corrosion-resistant solution for organizing and protecting electrical connections in residential and commercial applications. Choose from various sizes and knockout configurations to streamline your wiring projects and ensure a professional installation. Explore our versatile selection for your needs.
waterproof plastic junction box
We offer various plastic waterproof electronic junction boxes, providing reliable protection for electrical connections in wet, damp, or outdoor environments. Constructed from durable and corrosion-resistant plastics, our enclosures ensure the safety and longevity of your wiring. Choose from various sizes and configurations with high IP ratings for superior water and dust ingress protection. Trust our waterproof solutions for dependable performance in challenging conditions.
plastic enclosure junction box
We offer a diverse range of plastic enclosure junction boxes, providing lightweight, durable, and corrosion-resistant solutions for your electrical needs. Our enclosures ensure safe and organized wire connections for indoor and outdoor applications. Choose from various sizes and configurations to find the perfect fit for your project, offering reliable protection and easy installation. Explore our comprehensive selection of plastic enclosure junction boxes.
Why Choose Our Plastic Junction Box
We understand that electrical projects have diverse spatial constraints and wiring requirements. Therefore, we provide a wide array of standard sizes for our plastic junction boxes, and we can also accommodate custom dimensional specifications to perfectly fit your application. Whether you need a compact enclosure for tight spaces or a larger volume to accommodate numerous wires and devices, we can tailor the length, width, and depth. Furthermore, we can customize the number, size, and placement of knockouts or entry points to align precisely with your conduit or cable routing plan, ensuring efficient and organized wire management.
Material and Color
Our plastic junction boxes are available in various high-quality polymers, including PVC, polycarbonate, and ABS, each offering different levels of durability, temperature resistance, and impact strength to suit specific environmental conditions. We also offer customization in terms of color, allowing you to choose from a range of standard options or specify a custom color to match existing equipment or aesthetic preferences. This ensures that the junction box not only performs reliably but also integrates seamlessly into your overall system design, providing both functionality and visual appeal.
Mounting Options and Features
To facilitate easy and secure installation in various settings, we offer a range of mounting options for our plastic junction boxes. These include integrated mounting feet, external mounting brackets, and options for DIN rail mounting. We can also incorporate custom mounting features based on your unique installation requirements. Additionally, we can integrate specific features into the box design, such as breather vents for pressure equalization, clear covers for visual inspection of internal components, or hinged lids with secure latches for easy access and maintenance, enhancing the practicality and usability of the enclosure.
Custom Modifications and Accessories
Beyond basic size and mounting, we provide extensive customization options to meet specific functional needs. This includes creating custom cutouts for switches, connectors, or other devices according to your exact specifications, eliminating the need for on-site modifications and ensuring a precise fit. We can also pre-install various accessories, such as terminal blocks, grounding studs, or internal mounting plates, streamlining the assembly process and providing a ready-to-use solution tailored to your application. Our engineering team is available to collaborate on unique design requirements and deliver plastic junction boxes that are precisely engineered for your project.
what are plastic junction boxes?
Plastic junction boxes are electrical enclosures manufactured from various types of plastic polymers, such as PVC, polycarbonate, ABS, or fiberglass.
These junction boxes plastic serve the fundamental purpose of housing and protecting electrical wire connections, offering a non-conductive and often corrosion-resistant alternative to metal boxes.
Their lightweight nature and ease of modification make them a popular choice for a wide range of residential and light commercial indoor applications, as well as some outdoor uses depending on the specific plastic material and environmental ratings.
plastic vs metal junction box
When selecting a junction box for an electrical installation, one of the primary decisions involves choosing between plastic and metal materials. Both types offer distinct advantages and disadvantages, making them suitable for different applications and environments. Understanding these key differences in terms of durability, conductivity, cost, and ease of use is crucial for ensuring a safe and compliant electrical system tailored to specific needs.
Durability and Protection
Metal junction boxes, typically made of steel or aluminum, generally offer superior physical protection against impacts and crushing forces compared to plastic boxes. They are often required in exposed locations or where conduit systems are used, providing a robust enclosure for wiring. While plastic boxes are durable enough for many indoor applications and some outdoor uses (depending on the specific plastic type), they may be more susceptible to damage from significant physical stress.
Conductivity and Grounding
Metal junction boxes are conductive, which necessitates proper grounding to ensure safety in case of a fault. The metal enclosure can become part of the grounding path when correctly installed. Plastic junction boxes, being non-conductive, do not require grounding of the box itself, simplifying the grounding process within the enclosure. However, grounding of the internal wiring is still essential in both types of boxes.
Corrosion Resistance
Plastic junction boxes typically exhibit excellent resistance to corrosion from moisture, chemicals, and other environmental factors, making them a good choice for damp or potentially corrosive environments. While metal boxes, especially aluminum and appropriately coated steel, can also offer good corrosion resistance, they may be more susceptible to rust or degradation over time in harsh conditions if not properly protected or maintained.
Plastic junction boxes are generally less expensive than their metal counterparts, making them a budget-friendly option for many residential and light commercial applications. They are also often lighter and easier to modify (e.g., drilling holes for cable entry) compared to metal boxes, which may require specialized tools for cutting and creating openings. However, metal boxes offer a more rigid and potentially longer-lasting solution in demanding environments.
plastic electrical junction box types
Plastic electrical junction boxes come in a variety of types, each designed for specific applications and installation requirements. These non-conductive enclosures offer a cost-effective and lightweight solution for protecting wire connections. Understanding the different types will help you choose the most suitable option for your electrical project, ensuring safety and compliance with electrical codes.
Standard Utility Plastic Junction Box
Standard utility junction boxes are typically square or rectangular and are the most common type found in residential wiring. They are used for mounting outlets, switches, and light fixtures. These boxes are generally designed for indoor use and come in various sizes to accommodate different wiring needs and device types. They are easy to install and provide ample space for wire connections.
Round or Octagonal Plastic Junction Box
Round or octagonal plastic junction boxes are primarily used for ceiling or wall-mounted light fixtures and smoke detectors. Their shape provides sufficient space for wiring connections while offering a standard mounting point for these types of devices. They are available in different depths to accommodate varying wire fill requirements and fixture sizes.
Gangable Plastic Junction Box
Gangable plastic junction boxes are designed to be joined together to create multi-device installations, such as a series of switches or outlets in one location. They have removable sides that allow multiple boxes to be linked, providing a clean and organized way to install several devices in a single wall opening. These are commonly used in residential and commercial settings where multiple controls or power outlets are needed together.
Plastic Junction Box Weatherproof
Weatherproof plastic junction boxes are specifically designed for outdoor use or damp locations. They are constructed with seals and tight-fitting covers to protect electrical connections from moisture, rain, and dust. These boxes are essential for outdoor outlets, lighting, and other exterior electrical devices to ensure safety and prevent corrosion or electrical failures due to environmental exposure. They often have threaded hubs for secure conduit connections.
Plastic Junction Box Low Voltage
Low voltage plastic junction boxes are used for wiring low-voltage systems such as telecommunications, data networks, and security systems. These boxes are designed to accommodate the specific wiring and connection needs of these systems and are often shallower than standard voltage boxes. They typically do not have knockouts for conduit and are designed for direct cable entry.
Plastic Floor Junction Box
Floor junction boxes are plastic enclosures designed to be installed in or on the floor, providing access to power or communication outlets. They are built to be durable and often have hinged or screw-on covers that can be closed when not in use, providing protection and a flush surface. Floor boxes are commonly used in offices, retail spaces, and residential areas where floor-level access to power or data is required.
how to ground a plastic junction box?
Grounding a plastic junction box differs significantly from grounding a metal one because plastic is a non-conductive material. Therefore, the box itself does not need to be grounded. However, it’s still crucial to ensure that any electrical devices housed within the plastic box, such as receptacles or switches, are properly grounded for safety. Here’s how to achieve that:
Step 1: Bring the Equipment Grounding Conductor into the Box
When wiring to a plastic junction box, ensure that the equipment grounding conductor (typically a bare copper or green insulated wire) is included with the circuit wires entering the box. This grounding wire will serve as the pathway to ground for any devices you install within the plastic enclosure. It’s essential that this grounding conductor runs continuously to provide a fault current path.
Step 2: Connect the Grounding Conductor to the Device
Locate the green grounding screw or terminal on the electrical device (e.g., receptacle, switch) that you are installing in the plastic junction box. Securely attach the equipment grounding conductor from the incoming circuit to this green grounding terminal. This connection ensures that if a fault occurs in the device, the current will have a safe path to ground, tripping the circuit breaker or blowing the fuse.
Step 3: Pigtail for Multiple Ground Connections (If Necessary)
If the plastic junction box has multiple cables entering and feeding downstream devices, you’ll need to ensure continuous grounding. This is achieved by using a grounding pigtail.
Connect all the equipment grounding conductors from the incoming and outgoing cables together with an appropriately sized wire connector (e.g., a green wire nut). Then, attach one end of a short grounding pigtail wire to this bundle and connect the other end to the green grounding terminal on the device being installed in the box. This method maintains grounding continuity even if the device is removed.
are plastic junction boxes safe?
Yes, plastic junction boxes are generally considered safe for electrical installations when used correctly and in accordance with electrical codes.
They offer several safety advantages, primarily due to their non-conductive nature, which eliminates the risk of the box itself becoming energized and posing a shock hazard.
This is particularly beneficial in residential wiring and DIY projects where ease of handling and installation are important. Furthermore, many plastic compounds used in junction boxes are flame-retardant, helping to contain potential fires that might originate within the box.
However, the safety of plastic junction boxes also depends on their appropriate application and installation. They are typically best suited for use with non-metallic sheathed cables (Romex) in dry, indoor locations. While some plastic boxes are rated for outdoor or damp environments, it’s crucial to choose the correct type with the appropriate environmental rating (NEMA or IP) for such applications.
Overloading a plastic box with too many wires or subjecting it to significant physical stress beyond its durability limits can compromise its safety. Therefore, selecting the right type and size of plastic junction box for the specific wiring needs and adhering to all relevant electrical codes are essential to ensure a safe electrical installation.
can a plastic junction box hold a ceiling fan?
Standard plastic junction boxes are generally not designed to support the weight and dynamic forces of a ceiling fan. Ceiling fans, especially larger models, can be quite heavy and, more importantly, they vibrate significantly during operation. This vibration puts a lot of stress on the mounting hardware and the junction box itself.
Using a standard plastic junction box for a ceiling fan creates a serious safety hazard. The box could crack or detach from the ceiling over time due to the constant stress and vibration, leading to the fan falling and potentially causing injury or damage.
Electrical codes typically require the use of specifically listed “ceiling fan rated” junction boxes, which are constructed of metal and are designed to be securely mounted to structural members like ceiling joists to handle the extra weight and movement of a fan.
how to remove a plastic junction box?
Removing a plastic junction box is a straightforward process, but safety should always be your top priority. Before you begin, ensure the power to the circuit connected to the junction box is completely turned off at the main breaker.
Double-check with a non-contact voltage tester to confirm there is no live electricity present. Once you’ve verified the power is off, gather your tools, which will likely include a screwdriver (both flathead and Phillips), and possibly a utility knife if the box is caulked or painted in place.
Step 1: Remove the Junction Box Cover
The first step is to remove the cover of the plastic junction box. This is usually held in place by one or more screws. Use the appropriate screwdriver to loosen and remove these screws, being careful not to lose them.
Once the screws are out, gently pull the cover away from the box. If the cover seems stuck, it might be sealed with paint or caulk, in which case you can carefully score along the edges with a utility knife to break the seal before fully removing it.
Step 2: Disconnect the Wires Inside the Box
With the cover removed, you’ll have access to the wire connections inside. Before disconnecting any wires, it’s helpful to take a picture or make a diagram of how they are currently connected.
This will be useful if you need to reinstall a new box or understand the wiring configuration later. Once documented, carefully unscrew the wire nuts or release the push-in connectors to detach the wires from each other. Ensure each wire is completely separated and no bare conductors are touching.
Step 3: Remove the Junction Box from its Mounting
The plastic junction box is typically attached to a wall stud, ceiling joist, or the drywall/plaster itself using screws or nails through mounting ears or brackets on the box. Locate these fasteners and use the appropriate screwdriver to remove any screws.
If the box is nailed in place, you might need to gently pry it loose using a flathead screwdriver or the claw of a hammer, being careful not to damage the surrounding wall or ceiling. Once the fasteners are removed, the plastic box should be free to be pulled out.
Step 4: Remove Any Remaining Fasteners or Fittings
After the box is removed, inspect the mounting location for any remaining fasteners, such as nails or screw anchors, or conduit fittings that were attached to the box. If you are not replacing the box immediately, it’s a good idea to remove these to ensure the area is clear and safe.
For conduit fittings, you may need a wrench to unscrew them from the knockout holes. Dispose of the old plastic junction box and any removed hardware properly according to local regulations.
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All-in-one Plastic Junction Box Solutions for Your Project
We offer comprehensive all-in-one plastic junction box solutions designed for a wide range of electrical projects. Our lightweight, durable, and corrosion-resistant plastic enclosures ensure safe and organized wire connections for both indoor and outdoor applications. Simplify your installations with our versatile selection of sizes and configurations, providing reliable protection and easy access for your electrical systems. Explore our integrated plastic junction box options.
