SP Series Waterproof Connectors – Reliable Sealing Solutions for Industrial Connectivity
The SP series waterproof connectors are designed to provide dependable electrical connections in environments where protection against water, dust, and mechanical stress is essential. Built with durable materials and precision sealing structures, these connectors ensure stable performance in both indoor and outdoor applications.
The SP series covers a wide range of connector sizes and current capacities, offering flexible solutions for signal transmission, power distribution, and equipment integration across various industries.

SP Series Connectors Are Engineered for Harsh Environmental Conditions
SP series connectors are developed to perform reliably in challenging environments where moisture, vibration, and temperature variations are common. With waterproof sealing technology and secure locking mechanisms, they help maintain consistent electrical contact and reduce the risk of system failure.
These connectors are widely selected for equipment requiring long-term reliability and minimal maintenance.

Complete Series Coverage
The SP series includes multiple models to support different installation requirements and electrical loads. Each size is optimized for specific application scenarios.
Typical models include:
SP13 - Compact connector for small equipment and limited installation space
SP17 - Standard industrial connector for general-purpose applications
SP21 - Medium-duty connector for higher current transmission
SP29 - Heavy-duty connector for high-power systems
This structured product range allows engineers and system designers to select the most suitable connector based on performance and installation requirements.

Key Features of the SP Series
IP67 / IP68 waterproof and dustproof protection
Secure threaded locking mechanism
Durable housing for industrial environments
Stable electrical conductivity
Resistance to vibration and mechanical stress
Long operational service life
Suitable for both signal and power transmission
Flexible Installation & Configuration Options
SP series connectors are available in a variety of connection styles and mounting structures to support different equipment designs.
Available options include:
Cable-to-cable connectors
Panel mount connectors
Flange mount connectors
Docking plug and socket connectors
Straight and right-angle versions
Multi-pin configurations
Custom cable assembly solutions
Customization services are available for wiring, connector configuration, and special project requirements.
Typical Application Industries for SP Series Waterproof Connectors
SP series waterproof connectors are widely used across industrial and commercial sectors requiring reliable environmental protection and electrical stability, including:
Industrial automation systems
Outdoor LED lighting equipment
Electrical control cabinets
Renewable energy systems
Transportation and infrastructure equipment
Security and monitoring devices
Marine and field equipment
Integrated Manufacturing & Supply Capability
With manufacturing experience since 2007, our company focuses on the development and production of waterproof connectors and cable assemblies. Our production facilities integrate die casting, mold manufacturing, machining, injection molding, and assembly processes to ensure consistent product quality and efficient production control.
This integrated production structure allows us to respond quickly to customer requirements while maintaining stable output capacity for both standard and customized orders.
Quality Assurance & Certification Compliance
To ensure reliable performance, all SP series connectors undergo strict testing and inspection procedures during production.
Testing capabilities include:
Waterproof sealing performance testing
Mechanical insertion and withdrawal testing
Salt spray corrosion resistance testing
Electrical insulation and voltage resistance testing
Air tightness verification
Precision dimensional inspection

Our products comply with internationally recognized standards, including: UL, CE, RoHS, BSCI, ISO9001, ect.
These certifications demonstrate our commitment to quality, safety, and continuous improvement.
Stable Production & Global Delivery Support
All connectors are carefully inspected and securely packaged before shipment to ensure product safety during transportation. With stable manufacturing capacity and organized logistics coordination, we support reliable delivery schedules for customers worldwide.

We are committed to providing dependable connectivity solutions and long-term supply support for industrial applications.
Finally fixed my submersible pump’s short circuit issue. SP17 is thick and durable, waterproof even underwater. Easy to connect, no power issues—worth every cent!CozyHomeShopper 2026-02-02
My old camera connectors kept failing from rain, SP13 is a game-changer. IP68 waterproof holds up, locking design never comes loose. Sturdy build, totally reliable for outdoor use.GourmetGoddess 2026-02-02
SP21 connectors handle the power from my solar panels with zero problems. The weatherproof design has survived weeks of storms, and the quick-connect feature saved me a ton of time. Top quality, will buy again!TechieTrendz 2026-02-02
Needed something that could survive saltwater and rough conditions for my boat’s electronics. The SP29 connectors are built like tanks, and the waterproof cap keeps everything dry. Worth every penny for marine applications.CreativeCrafter 2026-02-02