Direct from Manufacturer
Industrial Waterproof Connector (LP Series)
- IP68 Protection - high precision, high quality, self-locking device.waterproof for harsh industrial environments
- High Current Capacity - Superior conductivity for power transmission up to 30A
- Factory Direct Pricing - No middleman markup with flexible MOQ starting low
- Fast 5-7 Day Delivery - 600,000 pieces monthly capacity ensures stable lead times
- Custom Branding Available - Logo printing and personalized packaging solutions
- Global Certifications - TÜV, UL, SAA, CE certified for worldwide compliance
Industrial Waterproof Connector (LP Series) Supplier & Manufacturer
Founded in 2016, AGX®️ is one of the leading individually Industrial Waterproof Connector (LP Series) manufacturers in China, supplying popular LP Series waterproof connectors from 2-pole to 12-poles for high efficiency and low cost.
All our waterproof connectors are CE, RoHS, TUV, UL certificated, ensuring high performance and a long lifetime. We offer customized solutions, OEM, ODM service. Wholesalers, distributors, dealers, traders, agents are welcome to purchase in bulk with us.
Factory Direct Pricing
When you choose AGX as your industrial waterproofconnector (LP Series) supplier, you benefit from our factory direct pricing with no middleman markup. By sourcing directly from the manufacturer, you get the most competitive rates and maximum cost savings for your project.
Customization
Quality Control
What is Industrial Waterproof Connector (LP Series) ?
What is LP Series Industrial Connector?
LP Series industrial connectors are circular, waterproof electrical connectors designed for high-precision automatic insertion in demanding industrial environments. These connectors feature IP68 waterproof and dustproof protection, making them suitable for wet, dusty, or harsh operating conditions.
Key Characteristics:
LP Series connectors offer several distinct features that set them apart from standard connectors. They include a self-locking mechanism that ensures stable and reliable connections, while their quick plug-and-pull design allows for simple one-handed operation during installation and maintenance. The connectors feature multi-core design capabilities, enabling simultaneous transmission of power, signals, and data through a single connection point.
The connectors are constructed from high-performance engineering plastics, with metal versions also available for enhanced durability. Gold-plated contacts provide excellent electrical conductivity and reliable signal transmission, ensuring consistent performance over time.
Why Choose Industrial Waterproof Connector (LP Series) ?
High Precision Engineering
Designed for high-precision automatic insertion with optimized mating force for reliable connections. Advanced manufacturing ensures consistent performance in critical industrial applications.
High Quality Materials
Premium copper alloy pins with gold plating and industrial-grade housing materials ensure superior durability. Rigorous quality control delivers virtually zero-defect production standards.
Self-Locking Device
Spring snap-lock mechanism provides secure one-touch connection with audible confirmation. Single-handed operation enables efficient installation while preventing accidental disconnection.
Waterproof Protection
IP68-rated complete protection against water, dust, fire, and UV exposure in extreme environments. Dual seal design ensures reliable operation from desert conditions to underwater applications.
Versatile Applications
Multiple sizes and configurations suitable for industrial automation, marine equipment, and outdoor installations. Flexible design meets diverse power distribution and signal transmission requirements across industries.
Multi-Function Design
Supports simultaneous power transmission up to 20A/500V, data transfer, and signal communication in single connector. Comprehensive solution reduces system complexity and installation costs.
Industrial Waterproof Connector (LP Series) in Various Applications
Industrial Automation
Robust connections for automated manufacturing systems, sensors, control equipment, and machinery in demanding production environments.
New Energy Systems
Reliable connections for electric vehicles, solar panels, renewable energy installations, and charging infrastructure requiring weather-resistant performance.
Electric Vehicles
Secure electrical connections for EV charging systems, battery management, and power distribution components exposed to harsh automotive conditions.
LED Display Screens
Dependable connections for large-scale LED displays, digital signage, and screen installations requiring stable signal transmission and environmental protection.
Audio-Visual Equipment
Protected connections for professional AV systems, broadcast equipment, and multimedia installations in challenging indoor and outdoor environments.
Medical & Test Equipment
Safe and precise electrical connections for medical devices, precision instruments, and monitoring equipment where reliability and safety are critical.
Wholesale Industrial Waterproof Connector (LP Series)
Model No.
Wire Section
Rated Voltage / Current
Cable Outer Diameter
IP Rating
Fire Rating
contact Part
EW-LP12-2P to 8P
Power Supply: 2/3/4/5Pin
Signal: 6/7/8Pin
2-6Pin: 0.5mm² / 20AWG
7-8Pin: 0.34mm² / 22AWG
2-6Pin: 125V / 5A
7-8Pin: 100V / 3A
5-7mm
IP68
Screw: 2/3Pin
Soldering: 2/8Pin
EW-LP16-2P to 9P
Power Supply: 2/3/4Pin
Signal: 5/7/8/9Pin
2-4Pin: 1.5mm² / 16AWG
5-9Pin: 0.5mm² / 20AWG
2-4Pin: 400V / 10A
5-9Pin: 250V / 5A
7-9mm; 4-6.5mm
IP68
Screw: 2/3/4/5Pin
Soldering: 2-9Pin
EW-LP20-2P to 12P
Power supply:2/3/4Pin
Signal: 5/6/7/9/12Pin
2-4Pin: 2.5~4mm² / 14-12AWG
5-7Pin: 1~1.5mm² / 18-16AWG
9-12-14Pin: 0.34~0.75mm² / 22-20AWG
2-4Pin: 500V / 20A
5-7Pin: 500V / 10A
9-12-14Pin: 0.34~0.75mm² / 22-20AWG
9-12mm; 5-6.5mm
IP68
Screw: 2/3/4/5/6/7Pin
Soldering: 2-14Pin
EW-LP24-2P to 24P
Power Supply: 2/3/4/5Pin
Signal: 10/12/19/24Pin
2-4Pin: 4.0mm² / 12AWG
5Pin: 2.5mm² / 14AWG
10-12Pin: 1.5mm² / 16AWG
19-24Pin: 0.5mm² / 20AWG
2-4Pin: 500V / 25A
5Pin: 500V / 20A
10-12Pin: 400V / 10A
19-24Pin: 250V / 5A
9.5-14mm
IP68
Screw: 2/3/4/5Pin
Soldering: 2-24Pin
EW-LP28-2P to 5P
Power Supply: 2/3Pin
Signal: 3/5Pin
2-3Pin: 10mm²
3-5Pin: 2.5mm² / 6mm²
2-3Pin: 500V / 50A
3-5Pin: 4800V / 32A
16.5-18.5mm; 10.5-16.5mm
IP68
Screw: 2/3Pin
Soldering: 2/3/5Pin
EW-LP12 Series >>
EW-LP16 Series >>
EW-LP20 Series >>
EW-LP24 Series >>
EW-LP28 Series >>
Industrial Waterproof Connector (LP Series) Videos
How to manufacture Industrial Waterproof Connector (LP Series)
Installing an industrial waterproof connector (LP Series) involves five main steps: preparing the wires by stripping insulation, crimping individual pins onto the prepared wires, inserting the crimped pins into their designated positions in the connector housing until they click into place, and finally assembling the connector halves together with proper tightening to ensure a watertight seal.
How to manufacture Industrial Waterproof Connector (LP Series) ?
Quality starts at the source. Our comprehensive 9-step manufacturing process ensures every LP Series industrial waterproof connector meets the highest standards from initial design to final delivery. With over 200 skilled workers, advanced equipment, and rigorous quality control at each stage, we deliver reliable connectors that perform flawlessly in the most demanding environments.
01
R&D and Design
Our experienced engineering team uses advanced CAD software to design connectors that meet your exact specifications. From initial concept to 3D modeling, we optimize every detail for performance, durability, and ease of installation. This stage ensures the final product perfectly matches your application requirements before moving to production.
02
Mold Development and Manufacturing
Precision tooling is the foundation of quality connectors. Our in-house mold workshop crafts high-precision molds using CNC machining and EDM technology. Each mold undergoes strict dimensional verification to ensure consistent part quality throughout production runs. This investment in premium tooling guarantees long-term reliability and repeatability.
03
Injection Molding Production
State-of-the-art injection molding machines produce connector housings with tight tolerances and excellent surface finish. We use industrial-grade PA66 materials with UV stabilizers and flame retardants for superior environmental resistance. Our organized mold library allows quick changeovers for efficient production of multiple connector configurations.
04
Metal Component Manufacturing
Gold-plated copper alloy pins are precision-stamped using advanced metal forming equipment. Each contact pin undergoes quality inspection to verify dimensions, plating thickness, and electrical conductivity. Our metal workshop houses hundreds of stamping molds, enabling flexible production of various pin configurations from 2-pin to 12-pin designs.
05
Component Assembly
Skilled technicians perform critical sub-assembly operations including wire termination, pin insertion, spring mechanism installation, and waterproof seal assembly. Automated equipment assists with repetitive tasks while manual quality checks ensure proper fit and function of each component before final assembly.
06
Final Assembly
Trained assembly workers combine housing components, install sealing rings, and integrate all sub-assemblies into complete connectors. Each unit is assembled following detailed work instructions to ensure consistent quality. The snap-lock mechanism is tested during assembly to verify proper engagement and retention.
07
Quality Inspection
100% inspection ensures zero defects reach customers. Quality technicians verify waterproof sealing, contact resistance, mating force, and dimensional accuracy against strict specifications. Random samples undergo additional testing including IP68 waterproof verification and voltage withstand tests in our laboratory.
08
Professional Packaging
Automated packaging equipment ensures connectors are protected during shipping while maintaining efficient throughput. Products are packaged in protective materials with clear labeling including specifications, batch numbers, and handling instructions. Custom packaging solutions are available for branded or special shipping requirements.
09
Finished-Product Warehouse
Our modern warehouse facility maintains organized inventory with advanced tracking systems. Color-coded storage racks separate different product lines and configurations for quick order fulfillment. Climate-controlled conditions protect products until shipment, ensuring they arrive in perfect condition ready for immediate use.
Proven Performance in Critical Applications
Customer Success Stories
Our LP Series industrial waterproof connectors deliver exceptional reliability in the world’s most demanding environments, from extreme manufacturing conditions to harsh outdoor installations. These real-world success stories demonstrate how our connectors eliminate downtime, reduce maintenance costs, and ensure continuous operation where failure is not an option.
Industrial Automation - Manufacturing Plant Upgrade
Client: Nordic Steel Processing AB, Sweden
Industry: Steel Manufacturing & Processing
Challenge: Frequent connector failures in harsh factory environments with high temperatures, metal dust, and wash-down procedures causing production downtime and maintenance costs.
Solution: Implemented LP-20 series 4-pin waterproof connectors for motor control circuits and sensor connections throughout the production line. The IP68-rated connectors provided complete protection against industrial wash-down procedures and metal particulate contamination.
Results:
- Reduced unplanned downtime by 85% over 18-month period
- Eliminated connector-related maintenance calls during scheduled wash-down cycles
- Achieved 99.7% uptime on critical conveyor systems
- One-touch connection design reduced technician installation time by 60%
Renewable Energy - Solar Farm Installation
Client: SunTech Energy Solutions, California
Industry: Solar Power Generation
Challenge: Large-scale 50MW solar installation requires reliable connections for 12,000+ panels in desert environments with extreme temperature variations, UV exposure, and dust storms.
Solution: Deployed LP-24 series 3-pin connectors for DC power connections between solar panels and combiner boxes. Gold-plated contacts ensured low resistance connections while UV-resistant housing withstood harsh desert conditions.
Results:
- Zero connector failures after 3 years of operation in extreme conditions
- Maintained 99.2% system efficiency with minimal power losses
- Survived temperature cycling from -10°C to +65°C without degradation
- Installation time reduced by 40% compared to traditional screw-terminal connections
Custom Industrial Waterproof Connector (LP Series)
We provide comprehensive branding solutions including custom logo printing directly on connectors, personalized packaging, and professional labeling services. Our experienced R&D team ensures your brand identity is perfectly integrated into every product detail, delivering customized solutions that enhance your market presence.
Why wholesale screwless waterproof connectors in bulk from us?

Stable Lead Time
With a robust monthly production capacity of 600,000 pieces and a comprehensive manufacturing workflow spanning mold development, CNC machining, hardware stamping, automated assembly, and injection molding departments, we guarantee consistent delivery schedules. Our integrated production system ensures reliable lead times you can count on for your project planning.

Flexible MOQ
We offer flexible minimum order quantities to meet the real needs of your project. Our exceptionally low MOQ requirements provide maximum flexibility for market testing and small-scale production, making it easy for businesses of all sizes to get started.

Qualified Certification
Our products meet stringent international standards with full TÜV, UL, SAA, and CE certifications, demonstrating compliance with global safety and performance requirements. These prestigious certifications validate our commitment to delivering world-class connector solutions that meet the highest industry standards across different markets.

Fast Delivery
With over 200 skilled workers and streamlined production processes, we deliver exceptionally fast turnaround times of just 5-7 days for standard orders. Sample shipments are processed within 24 hours, ensuring you can quickly evaluate our products and accelerate your project timeline.

Free Sample
We provide complimentary samples for testing and project compatibility evaluation, with same-day processing and shipment within 24 hours. This allows you to quickly assess our product quality and ensure perfect fit for your specific application before placing bulk orders.

Global Support
We provide comprehensive 12x7 global support covering every aspect of your project needs. From initial service consultation and customized product recommendations to logistics coordination and on-site installation assistance, our international team ensures seamless support throughout your entire project lifecycle, no matter where you are located.
Product Testing-Where Quality Happens
All of our electrical connector are not mass-produced until they have gone through multiple rigorous testing steps in our laboratory equipment. This ensures high performance and stability and the product’s long life.

Automatic Insertion and Extraction Tester

Temperature rise current tester

Voltage Tester

Horizontal plug-in test

DC Resistance + Insulation Resistance Tester

IP68 Waterproof Tester

Scorch Wire Tester

Leakage Trace Tester

Horizontal Vertical Flame Tester

Constant temperature and humidity tester
Waterproof Connector Pull Test – Ensuring Strong, Reliable Connections!
IP68 Waterproof Connector Test: 4M Depth, 2 Hours Waterproof Simulation
2500V Withstand Voltage Test: No Breakdown, Maximum Protection
Glow Wire Test: Ensuring Safety and Durability of Our Connectors
Salt Spray Test: Corrosion Resistance of Our Connectors in Harsh Environments
Certification & Patents
Our LP Series Industrial Waterproof Connector meet stringent international standards with TÜV, UL, SAA, CE, RoHS, and REACH certifications, ensuring global compliance and safety. Additionally, we hold multiple European intellectual property registrations, protecting our innovative designs and demonstrating our commitment to advancing connector technology.








Submit Your Waterproof Connector Request
Fill out this form with your detailed requirements and our technical support team will contact you shortly. We will assign a professional agent to follow up on your project and provide personalized assistance for your screw waterproof connector needs.
To get the fastest response, submit your inquiries using the form. If you encounter any issues with submission, you can also email us directly at cindy@agxconnector.com
Contact Us
Frequently Asked Questions
A: LP Series connectors feature a unique one-touch snap-lock design enabling single-handed operation, eliminating the need for threading or complex assembly. They combine IP68 waterproof protection with high current capacity up to 50A/500V, gold-plated contacts for superior conductivity, and industrial-grade materials rated for extreme temperatures and UV exposure.
A: LP Series offers complete flexibility with 2-24 pin configurations available in both male and female versions. Common configurations include 2-pin, 3-pin, 4-pin, 5-pin, to 24-pin options. Each configuration supports both power transmission and signal communication applications.
A: Yes, LP Series connectors are designed for multi-function applications. They can simultaneously handle power transmission up to 20A/500V, low-voltage control signals, and data communication depending on the pin configuration and your specific wiring requirements.
A: LP Series connectors are built for extreme environments with IP68 waterproof rating, complete dust protection, UV resistance for outdoor use, flame retardancy meeting UL94 V-0 standards, and operational temperature ranges from -25°C to +85°C. They’re tested for salt spray corrosion resistance and high-pressure water exposure.
A: Connector sizing depends on your current requirements, cable diameter, and space constraints. LP-12 series handles up to 12A, LP-20 series up to 20A, and LP-24 series for higher current applications. Contact our technical team with your specifications for personalized recommendations.
ratings, UL94 V-0 flame retardancy, and CE certification. While they use proprietary snap-lock technology, they’re designed to integrate seamlessly with standard industrial wiring practices and panel mounting requirements.
A: Installation requires basic tools: wire strippers, crimping tool for pins, and optionally panel mounting hardware. The snap-lock design eliminates the need for threading tools or complex assembly procedures, making field installation quick and reliable.
A: Yes, we offer complete customization including pre-assembled cable assemblies in custom lengths, mixed pin configurations for power and signal, custom jacket colors, and branded connector housings. Our engineering team can design solutions for specific application requirements.
A: LP Series connectors are designed for 10,000+ mating cycles with proper maintenance. In continuous harsh environment exposure, they typically provide 10-15 years of reliable service. The gold-plated contacts and corrosion-resistant materials ensure minimal degradation over time.
A: We offer comprehensive technical support including application engineering consultation, custom cable design, installation training, and on-site support for large projects. Our global support network provides local assistance with 12×7 availability for critical applications.