E-Weichat
Waterproof Connectors & Junction Boxes Manufacturer
Reliable Solutions for Lighting, Industrial, Solar & Energy Storage Applications
Our Waterproof Connector Solutions
From outdoor lighting to industrial and new energy applications, find the right waterproof connection solution for your project.
Circular Waterproof Connectors
LP Industrial Connectors
Waterproof Junction Boxes
Solar / PV Connectors
Energy Storage Connectors
Data & Signal Connectors
Featured Waterproof Connector Models
Explore our featured waterproof connector models by series. Compare key features and configurations to find suitable solutions for your application. Custom options are available based on your requirements.
Circular Waterproof Connectors for Lighting
Three connection styles to fit every installation: screw-lock (wire-lock), quick-connect and plug-in male-female. Built for LED lighting, landscape and outdoor fixtures.
LP Series Industrial Waterproof Connectors
Compact, vibration-resistant connectors for machinery, automation and outdoor equipment. Available in [2–24] pin configurations with [push-lock / threaded] coupling and IP67 protection.
EW-LP12
Solder/Screw
Power Supply: 2/3/4/5Pin
Signal: 6/7/8Pin
125V/100V
5A/3A
IP67(IP68)
EW-LP16
Solder/Screw
Power Supply: 2/3/4Pin
Signal: 5/7/8/9Pin
400V/250V
10A/5A
IP67(IP68)
EW-LP20
Solder/Screw
Power Supply: 2/3/4/5Pin
Signal: 5/6/7/9/12Pin
500V/250V
20A/10A/5A
IP67(IP68)
EW-LP24
Solder/Screw
Power Supply: 2/3/4/5Pin
Signal: 10/12/19/24Pin
500V/400V/300V/250V
35A/25A/20A/10A/5A
IP67(IP68)
EW-LP28
Solder/Screw
Power Supply: 2/3Pin
Signal: 3/5Pin
500V/480V
50A/32A/16A/3A
IP67(IP68)
Solar PV Connectors for Outdoor Power Connections
PV connectors designed for solar installations, with IP68 protection and multiple current and cable configurations for different photovoltaic system requirements.
Solar PV Connectors for Outdoor Power Connections
PV connectors designed for solar installations, with IP68 protection and multiple current and cable configurations for different photovoltaic system requirements.
| Operating voltage | 1000V DC/2000V DC | Insulation resistance | 500mΩ Min | ||
| Operating current | UL 14AWG: 15A | TUV 2.5mm: 25A | IP Rating | IP68 (2M/24H) | |
| Operating current | UL 12AWG: 20A | TUV 4mm: 35A | Fire rating | UL94 V-0 | |
| Operating current | UL 10AWG: 30A | TUV 6mm: 45A | Ambient temperature | -40°C~+85°C | |
| Operating current | UL 8AWG: 50A | TUV 10mm: 65A | Mating cycles | >100 times | |
| Withstand voltage | 10KV DC | Life span | 25 years | ||
| Withstand pulse voltage | 27.2KV (1.2/50us) | Certificates | UL6703/TUV/IEC62852/RoHS/REACH | ||
| Contact resistance | 0.5mΩ Max | Outer cable diameter | Φ5-7.8mm | ||
High-Current Energy Storage Connectors
Power connectors for energy storage applications, with current ratings from 50A to 350A and configurations designed for high-current battery connections.
| Plug type | EW-50A | EW-70A | EW-100A | EW-120A | EW-150A | EW-200A | EW-250A | EW-300A | EW-350A |
|---|---|---|---|---|---|---|---|---|---|
| Rated current | 50A | 70A | 100A | 120A | 150A | 200A | 250A | 300A | 350A |
| Outer cable diameter | 5.2-6.3 mm | 6.2-7.3 mm | 6.5-8.5 mm | 8.5-10.5 mm | 13mm | 14mm | 15mm | 17.5mm | 20mm |
| Wire section | 10AWG (6mm²) | 8AWG (10mm²) | 6AWG (16mm²) | 4AWG (25mm²) | 2AWG (35mm²) | 1/0AWG (50mm²) | 2/0AWG (70mm²) | 3/0AWG (95mm²) | 4/0AWG (120mm²) |
| Rated voltage | 1500V DC | Colour | Orange/black/red |
| IP Rating | IP67 | Contact material | Silver/tin plated copper |
| Fire rating | UL94 V-0 | Insulation material | FA66+GF |
| Ambient temperature | -40°C -- +125°C(storage/transportation) |
Waterproof USB Connectors
Weichat waterproof USB connectors provide reliable data transmission and connectivity for equipment used in outdoor and demanding environments. Available in different configurations, they help protect USB connections from water and dust when properly installed. Suitable for outdoor electronics, industrial equipment, communication devices, and other applications requiring protected USB interfaces.
| Part Type | Panel mount female | USB Interlocked male plug | USB Interlocked dual male plug | USB Cable mount male and female | USB Cable mount dual female | ||||
| USB standard | USB 3.0 | USB 2.0 | USB 3.0 | USB 2.0 | USB 3.0 | USB 2.0 | USB 3.0 | USB 2.0 | USB 3.0 |
| Rated Current | 2.0 A | 1.5 A | 2.5 A | 1.5 A | 2.5 A | 1.5 A | 2.5 A | 1.5 A | 2.5 A |
| Operating Voltage | 30V DC | 5V AC | 30V AC | 5V AC | 30V AC | 5V AC | 30V AC | 5V AC | 30V AC |
| Insulation Resistance | 500ΜΩ / 100V DC | Salt Spray Test | PH6.5-7.2,NACL, 5% 48h |
| Mating Cycle | >1500 times | IP Rating | IP67 |
| Ambient Temperature | -40~+85 °C |
Waterproof RJ45 Connectors
Weichat waterproof RJ45 connectors are designed for Ethernet connections in environments exposed to moisture, dust, and outdoor conditions. They provide a protected interface for network data transmission in outdoor communication equipment, industrial systems, security devices, and smart infrastructure. Multiple configurations support different installation requirements and equipment designs.
| Wiring Method | Registered jack | Mating cycle | >1900 times |
| Wire section | 26 AWG | Ambient Temperature | -40~+85°C |
| Rated Current | 1. 5A | Burn-in test | 85°C /168 h |
| Operating Voltage | 125 V AC | Salt spray Test | PH6.5-7.2, NaCl, 5% 48h |
| Pressure Resistance | 1000V AC | IP Code | IP67( 1m /0.5h) |
| Contact resistance | <50m Ω | Outer cable diameter | (Ø4.0-Ø6.5)mm |
| Insulation resistance | >100m Ω |
Not sure which connector you need?
Send us your application, drawing, or connector requirements. Our team can help identify suitable product options.
Why Engineers & Buyers Choose Weichat
From standard waterproof connectors to customized connection solutions, Weichat supports projects from product selection and engineering development to sampling and mass production.
Wide Range of Products
A broad selection of high-performance waterproof connectors and junction boxes, engineered to cater to the needs of industrial automation, outdoor lighting, renewable energy and other applications.
OEM & ODM Available
Bring your ideas to reality with our flexible OEM & ODM services. From structural design and 3D prototyping to custom pin layouts, we turn your unique requirements into production-ready solutions.
In-House R&D and Manufacturing
Our in-house mold design, stamping, injection, assembly, and testing ability gives us full control over quality and timelines, ensuring strict standards from concept to delivery.
Factory-Direct Pricing
Enjoy competitive pricing without middleman markups. Our direct manufacturing approach in Shenzhen ensures maximized value and strict cost control for your investment.
How We Manufacture
We support custom connector projects through a structured development process, from initial requirements and engineering review to sampling, validation and mass production.
01 — Requirement Review
We review your application, electrical requirements, connector structure, cable specifications and installation conditions to understand the project requirements.
02 — Solution & Design
Based on the project requirements, we develop or recommend a suitable connector configuration and confirm the required specifications.
03 — Sample Development
Samples are developed for functional testing, installation checks and customer evaluation. Samples can typically be developed in approximately 3 days, depending on project requirements.
04 — Customer Validation
Sample performance and specifications are reviewed and confirmed before moving forward with production.
05 — Trial Production & Validation
Trial production and product validation are carried out to confirm the manufacturing process and product requirements.
06 — Mass Production
After the specifications and validation requirements are confirmed, the project moves into mass production.
Manufacturing & Quality Highlights
Precision engineering and rigorous quality control ensure reliable performance in every connector we produce.
Advanced Equipment
Operate 100+ production machines for tooling, stamping, injection molding, automated assembly, and other production processes to support consistent manufacturing and volume production.
Strict Quality Control
Multi-stage inspections cover incoming materials, production, inventory, and outgoing products. 20+ testing devices support testing and validation in our UL/TÜV-based in-house laboratory.
Experienced R&D Team
A 30+ member in-house R&D team supports connector design, customization, product development, and project engineering, helping improve product performance and reliability.
Efficient Production
With an annual production capacity of 10 million+ sets and a production facility of approximately 7,000 m², our manufacturing system supports both standard products and volume production requirements.
Certification & Innovation
IATF 16949, ISO 9001, ISO 13485, ISO 14001, UL, cUL, TÜV, CE, SAA, CQC, and RoHS. We also hold multiple invention patents and dozens of utility model and design patents
Frequently Asked Questions
Precision engineering and rigorous quality control ensure reliable performance in every connector we produce.
What IP ratings are available?
Our waterproof connector range includes IP67 and IP68 products, depending on the series and configuration. Some connector series can also be customized to meet specific IP68 requirements.
What types of waterproof connectors do you offer?
We offer a wide range of waterproof connection solutions, including circular waterproof connectors, LP industrial connectors, self-locking connectors, quick-connect and wire-lock connectors, data and signal connectors, solar PV connectors, energy storage connectors, waterproof junction boxes, and related accessories.
What information should I provide for a quotation?
To help us recommend a suitable connector and prepare a quotation, please provide as much of the following information as possible:
- Application or equipment Required
- IP rating
- Voltage and current
- Number of pins
- Cable size or cable diameter
- Connector size or mounting requirements - - Required quantity
- Drawing, specification, or sample, if available
If you do not have all the specifications, you can simply tell us what the connector will be used for. Our team can help identify suitable options.
What is your production capacity?
Our production capacity is more than 10 million sets per year. The company operates a 7,000 m² production facility with more than 100 production machines and dedicated testing equipment.
Can you provide custom connectors?
Yes. We support OEM and ODM projects and can develop customized connector solutions based on application requirements, drawings, samples, or specific electrical and mechanical requirements. Our customization process covers solution development, design, sampling, validation, and mass production.
Do you provide tooling or mold development?
Yes. We provide tooling and mold development for customized connector projects. Our stated mold development capability is approximately 20 days, depending on the product design and project requirements.
How fast can you provide samples?
Our standard sample development capability is approximately 3 days, depending on the product configuration and project requirements. Custom projects may require additional time for design or engineering confirmation.
Let's Discuss Your Waterproof Connection Needs
Get custom solutions, wholesale pricing & free samples today. Our technical experts are ready to help you find the right solution for your application. Complete the form below for a prompt response.