Waterproof Junction Boxes
What Is A Waterproof Junction Box?
A waterproof junction box is a protective enclosure designed to house electrical connections and cables while providing IP-rated protection against dust, moisture, rain, and water ingress.
pvlinktech waterproof junction boxes are commonly used for connecting, extending, or modifying electrical circuits in environments where ordinary cable connections may be exposed to water, dust, spray, humidity, or outdoor weather conditions.
Their main purpose is to protect electrical connections from environmental hazards. When cables are cut and reconnected for extension or modification, the joint area can become vulnerable if it is not properly enclosed. A waterproof junction box helps keep terminals and wiring protected inside a sealed enclosure.
These junction boxes also provide mechanical protection. Sealed cable entry points help prevent cables from being pulled loose or damaged by outside force, keeping connections secure and stable during long-term use.
For outdoor lighting, solar wiring, garden power, low-voltage systems, marine applications, and industrial installations, a well-sealed junction box is an essential component for safer and more reliable electrical connections.
pvlinktech advantage:
reliable sealing design, durable materials, practical wiring space, and customizable connector solutions for different project requirements.
Waterproof Junction Box Applications
Outdoor Lighting Systems
Street lights, landscape lighting, security systems, LED installations, and architectural lighting projects requiring weather-resistant electrical connections.
Industrial Equipment
Factory automation, machine wiring, control panel connections, construction sites, and outdoor industrial power distribution applications.
Transportation Infrastructure
Traffic signal lights, tunnel systems, monitoring equipment, and road infrastructure projects requiring reliable waterproof electrical protection.
Marine Applications
Boat wiring, dock installations, port facilities, and equipment connections exposed to high humidity, salt corrosion, and outdoor conditions.
Solar Energy Systems
Photovoltaic connections, solar combiner boxes, renewable energy equipment, and outdoor solar installations requiring long-term weather protection.
Agricultural Equipment
Automatic irrigation systems, pump controls, greenhouse lighting, valve wiring, and farm equipment connections in outdoor agricultural environments.
Product List
Find a suitable pvlinktech waterproof junction box according to your wiring layout, cable entry requirements, and installation environment.
| Item No. | External Dimension (mm) | Internal Dimension (mm) | Waterproof Rating | Cable Entry Points | Compatible Cable Glands |
|---|---|---|---|---|---|
| EW-M2068-2T | 131*68*37mm | 72*45*27.5mm | 2 ways | 2*M20, 5-9mm, 9-12mm | |
| EW-M2068-3T | 131*80*37mm | 72*45*27.5mm | 3 ways | 2*M20, 5-9mm, 9-12mm 1*M16, 3.5-7mm, 7-10mm |
|
| EW-M2068-4TA | 131*80*37mm | 72*45*27.5mm | 4 ways | 2*M20, 5-9mm, 9-12mm 2*M16, 3.5-7mm, 7-10mm |
|
| EW-M2068-4TB | 131*95*37mm | 72*45*27.5mm | 4 ways | 2*M20, 5-9mm, 9-12mm 2*M16, 3.5-7mm, 7-10mm |
|
| EW-M2068-5T | 131*95*37mm | 72*45*27.5mm | 5 ways | 2*M20, 5-9mm, 9-12mm 3*M16, 3.5-7mm, 7-10mm |
|
| EW-M2068-6T | 131*95*37mm | 72*45*27.5mm | 5 ways | 2*M20, 5-9mm, 9-12mm 4*M16, 3.5-7mm, 7-10mm |
|
| EW-M2068S-2T | 135*66*42mm | 71*47*32mm | 2 ways | 2*M25, 5-9mm, 9-12mm; 10-14mm | |
| EW-M2068S-3T | 135*81*42mm | 71*47*32mm | 3 ways | 2*M25, 5-9mm, 9-12mm; 10-14mm 1*M20, 5-9mm, 9-12mm |
|
| EW-M2068S-4TA | 135*81*42mm | 71*47*32mm | 4 ways | 2*M25, 5-9mm, 9-12mm; 10-14mm 2*M20, 5-9mm, 9-12mm |
|
| EW-M2068S-4TB | 135*96*42mm | 71*47*32mm | 4 ways | 2*M25, 5-9mm, 9-12mm; 10-14mm 2*M20, 5-9mm, 9-12mm |
|
| EW-M2068S-5T | 135*96*42mm | 71*47*32mm | 5 ways | 2*M25, 5-9mm, 9-12mm; 10-14mm 3*M20, 5-9mm, 9-12mm |
|
| EW-M2068S-6T | 135*96*42mm | 71*47*32mm | 6 ways | 2*M25, 5-9mm, 9-12mm; 10-14mm 4*M20, 5-9mm, 9-12mm |
|
| EW-M2068L-3T | 138*95*42mm | 71*56*42mm | 3 ways | 3*M25, 5-9mm, 9-12mm; 10-14mm | |
| EW-M2068L-3Y | 123*82*42mm | 71*56*42mm | 3 ways | 3*M25, 5-9mm, 9-12mm; 10-14mm | |
| EW-M2068L-4H | 123*82*42mm | 71*56*42mm | 4 ways | 4*M25, 5-9mm, 9-12mm; 10-14mm | |
| EW-M2068XL-0T | 105*93*56mm | 106.7*72.7*37mm | Box without holes | Customizable number of cable glands | |
| EW-M2068XL-4T | 129*119*56mm | 106.7*72.7*37mm | 4 ways | 4*M20, 5-9mm, 9-12mm | |
| EW-M2068L-10T | 163*129*56mm | 106.7*72.7*37mm | 10 ways | 10*M20, 5-9mm, 9-12mm |
Note: Dimensions, cable gland combinations, and entry points can be adjusted according to project requirements. Contact pvlinktech for OEM, ODM, and bulk supply support.
EW-M2068S Series Waterproof Junction Box
Model No.: EW-M2068S-2T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-3T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-4TA
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-4TB
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-5T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-6T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
EW-M2068S Series Waterproof Junction Box
Model No.: EW-M2068S-2T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-3T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-4TA
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-4TB
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-5T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068S-6T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
EW-M2068L Series Waterproof Junction Box
Model No.: EW-M2068L-3T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068L-3Y
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068L-4H
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M25: 5-9mm, 9-12mm & 10-14mm M20: 5-9mm & 9-12mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
EW-M2068XL Series Waterproof Junction Box
Model No.: EW-M2068XL-0T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M20: 5-9mm & 9-12mm M16: 3.5-7mm & 7-10mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068XL-4T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M20: 5-9mm & 9-12mm M16: 3.5-7mm & 7-10mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Model No.: EW-M2068XL-10T
| IP68 WATERPROOF CONNECTOR | |||
|---|---|---|---|
| Key Specifications | |||
| Rated Voltage | 450V | Dimensions | 125x70x39mm |
| Rated Current | 41A | IP Rating | IP68 |
| Wire Compatibility | 0.5-6.0mm² | Material | PA66 |
| Cable Diameter | M20: 5-9mm & 9-12mm M16: 3.5-7mm & 7-10mm | Temperature Range | -40°C to 105°C |
| Certifications | CE/TUV/ROHS/SAA | ||
Custom Electrical Junction Box Solutions
Tell us your application and detailed requirements, and the pvlinktech team will help turn your ideas into practical waterproof connector solutions.
We Can Customize:
- Box dimensions and shapes
- Number and size of cable entries
- Terminal block configurations
- Housing colors and materials
- Mounting bracket designs
- Special environmental requirements
- Private labeling options
Industrial-Grade Installation Support
Waterproof Junction Box Tools & Accessories
Explore practical tools, cable glands, sealing rings, terminals, and wiring accessories designed to support reliable pvlinktech waterproof junction box installation.
Required Tool Set
Prepare the right installation tools before wiring to improve assembly efficiency and help maintain stable waterproof performance.
- Drill with masonry or wood bits
- Screwdriver set for cover fixing
- Wire strippers for cable preparation
- Multimeter for electrical testing
- Level tool for proper mounting
Recommended Accessories
Select accessories according to cable size, wiring direction, box model, installation surface, and environmental exposure.
- Cable glands in multiple sizes
- Terminal blocks for organized wiring
- Mounting brackets and screws
- Sealing rings and rubber gaskets
- Cable ties for internal cable routing
What Is a Cable Gland?
A cable gland, also known as a cord grip or cable connector, is used to secure and seal cable entry points. It helps reduce cable movement, protect the enclosure from dust and moisture, and improve long-term wiring stability.
| Cable Gland | M10 | PG7 | PG9 | PG13.5 | M20 | M25 | M32 |
|---|---|---|---|---|---|---|---|
| Cable Range | 2.5-6 | 3-6.5 | 4-8 | 7-12 | 8.5-14 | 12-18 | 18-25 |
Waterproof Entry
Cable Protection
Threaded Locking
What Is a Sealing Ring?
A sealing ring is usually made of rubber or silicone and is installed around cable entry points. It helps reduce gaps around the cable and prevents water, dust, and other contaminants from entering the box.
M16 Outer Cable
M20 Outer Cable
Dust Resistant
Moisture Resistant
Ask for Size Matching
Wiring Range Selection
Choose the correct sealing ring and cable gland according to the actual cable diameter. Proper size matching helps improve compression, sealing stability, and installation reliability.
- 5-9mm cable diameter option
- 9-12mm cable diameter option
- 10-14mm cable diameter option
IP Rating Guide For Waterproof Junction Boxes
For outdoor wiring projects, an IP rating helps describe how well an enclosure resists solid particles and water. pvlinktech junction boxes are designed for demanding installation environments where dust, rain, splash, and temporary immersion protection may be required.
IP
6
First Digit: Solid Protection
The number 6 indicates strong dust-tight protection, helping prevent dust and fine particles from entering the electrical enclosure.
8
Second Digit: Water Protection
The number 8 indicates protection for continuous or extended water exposure under conditions specified by the product design.
pvlinktech tip: IP ratings are important, but installation quality also matters. Correct cable gland size, proper gasket placement, secure tightening, and matching the box to the cable diameter all help maintain reliable waterproof performance.
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Why pvlinktech Uses PA66 Material for Electrical Enclosures
Material choice matters when a junction box is installed outdoors, underground, or in a demanding electrical environment. PA66 helps pvlinktech build enclosures with stable strength, insulation, and long-term protection.
Engineered for Sealed Electrical Protection
- Reliable enclosure strength helps the box resist impact, pressure, and daily installation stress.
- Stable waterproof performance supports sealed cable entries, gaskets, and IP-rated protection.
- Electrical insulation properties help protect wiring connections inside low-voltage and outdoor systems.
- Resistance to moisture and corrosion makes PA66 suitable for garden lighting, solar wiring, industrial equipment, and outdoor power projects.
pvlinktech material focus: our junction boxes are designed to balance durability, sealing performance, easy installation, and stable protection for real project use.
Material
PA66 Engineering Plastic
Application
Outdoor & Industrial Wiring
Protection Goal
Waterproof, Dustproof, Insulated
How to Choose the Right Waterproof Junction Box
Choosing a junction box is not only about the outside size. For a reliable installation, you should match the enclosure space, IP protection, cable entry layout, and mounting method to the actual project environment.
1
Check the Wiring Space
- Confirm the number of wire connections inside the box
- Leave enough room for terminals and cable bending
- Reserve extra space for future maintenance or upgrades
2
Match the IP Rating
- Use higher protection for outdoor exposed locations
- Consider rain, splash, dust, humidity, and temporary flooding
- Choose IP68 when long-term sealing performance is required
3
Plan Cable Entries
- Count incoming and outgoing cables before selecting a model
- Choose the correct cable gland size for each cable diameter
- Keep routing clean to reduce pulling force on connections
4
Select Installation Method
- Wall mounting for fixed electrical equipment
- Ground or buried use for landscape and garden wiring
- Easy access locations for inspection and maintenance
pvlinktech suggestion: before ordering, share your cable diameter, wiring direction, installation environment, and preferred mounting style. Our team can help recommend a suitable waterproof junction box configuration.
How to Install a Waterproof Junction Box
A reliable waterproof connection depends on correct cable preparation, proper sealing, and careful final inspection. The following installation flow is written for practical outdoor and low-voltage wiring projects.
01
Prepare the Cable and Box
- Confirm that the junction box model matches the cable diameter and entry direction.
- Strip the cable jacket to a suitable length for terminal connection.
- Check that the gasket, sealing ring, and cable gland are clean and correctly positioned.
02
Connect the Wires Securely
- Insert each conductor fully into the terminal block before tightening.
- Keep polarity, wire color, and circuit direction clearly organized.
- Gently pull each wire after fastening to confirm that the connection is stable.
03
Seal Every Entry Point
- Tighten the cable gland evenly so the sealing ring compresses around the cable.
- Make sure unused openings are properly closed with matching caps or plugs.
- Avoid twisting or bending the cable sharply near the entry point.
04
Inspect Before Power-On
- Confirm that the cover gasket sits flat inside the sealing groove.
- Tighten cover screws gradually in a cross pattern for even pressure.
- Test continuity and check the enclosure before placing it into service.
pvlinktech installation note: always choose the correct cable gland range for the real cable diameter. A cable that is too small or too large for the sealing ring may reduce waterproof performance.
What Materials Make a Waterproof Junction Box Reliable?
A waterproof junction box is more than a plastic shell. Every part, from the housing to the sealing ring and cable gland, works together to protect electrical connections from moisture, dust, pulling force, and outdoor exposure.
Core Housing: PA66 Engineering Plastic
pvlinktech commonly uses PA66 for waterproof electrical enclosures because it provides a strong balance of mechanical strength, insulation, moisture resistance, and long-term stability for outdoor wiring applications.
Sealing System
Gaskets, silicone rings, and cable entry seals help close the gap between the cable and enclosure. A good sealing structure is essential for stable IP-rated protection.
Connection Hardware
Terminal blocks, screws, locking nuts, and cable glands help keep wiring secure, organized, and protected during installation and long-term use.
Material Options for Different Projects
- PA66: durable, insulated, moisture resistant, suitable for most waterproof junction boxes.
- Silicone rubber: flexible sealing performance for cable entries and cover gaskets.
- PC material: useful when transparency or high impact resistance is required.
- Metal hardware: improves fastening strength and installation stability.
Sealing Cover
Protects the internal wiring area and compresses the gasket when the box is closed.
Cable Gland
Locks the cable entry point and helps reduce water, dust, and cable movement.
Silicone Ring
Improves sealing around the cable and supports reliable waterproof performance.
Terminal Block
Keeps electrical conductors organized, fixed, and easier to inspect during maintenance.
Waterproof Junction Box Size Selection Guide
The right box size gives your wiring enough room for terminals, cable bending, sealing parts, and future maintenance. Use this guide as a practical starting point before choosing a pvlinktech enclosure model.
Compact Wiring
Small Boxes
Approx. 100 x 100 x 50mm
- Suitable for 2-4 simple wire connections
- Useful for LED strips, sensors, and small outdoor devices
- Best when installation space is limited
- Recommended for short cable runs and light-duty circuits
General Projects
Medium Boxes
Approx. 150 x 150 x 80mm
- Suitable for 6-8 wire connections or multiple cable entries
- Good for garden lighting hubs and outdoor control points
- Provides more room for terminal blocks and cable glands
- A balanced choice for many waterproof wiring projects
Heavy-Duty Layouts
Large Boxes
Approx. 200 x 200 x 100mm
- Suitable for complex wiring layouts with 10+ connections
- Ideal for main distribution points and industrial equipment
- Allows cleaner cable routing and easier maintenance access
- Recommended when future expansion may be required
pvlinktech tip: always leave extra internal space instead of choosing the smallest possible box. Proper spacing makes installation easier and helps reduce pressure on terminals, seals, and cable glands.
