SP Series Waterproof Circular Connectors IP67/IP68 for Industrial Use

LD20/SP20 Industrial Flange Connector

SP Series Waterproof Connectors: Engineered for Reliable Sealing in Industrial Environments

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.

Selection Guide: Matching the Right SP Series Model to Your Application

Choosing the correct connector depends on your electrical load, installation space, and environmental requirements. The SP series includes multiple models to support different installation needs, each optimized for specific application scenarios.

• 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. For a detailed comparison of flange-mounted options, see the LD20/SP20 Industrial Flange Connector.

Key Selection Criteria for SP Series Connectors

When evaluating SP series connectors for your project, consider these decision points to ensure the correct match:

• Environmental protection: IP67/IP68 waterproof and dustproof ratings determine suitability for outdoor or washdown applications.
• Locking mechanism: The secure threaded locking system resists vibration and prevents accidental disconnection.
• Electrical requirements: Confirm the pin count and current capacity match your signal or power transmission needs.
• Mechanical durability: The durable housing and gold-plated brass contacts support long operational service life.
• Installation format: Choose between cable-to-cable, panel mount, flange mount, or docking configurations.

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. For cable assembly examples, review the M8 Waterproof Circular Connectors with Customized Cable solution.

Application Scope: Where SP Series Connectors Perform Best

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

Application Boundaries

While the SP series is well-suited for demanding environments, verify that your specific operating temperature range and mechanical stress levels fall within the connector's rated limits. For extreme high-power applications, confirm the current rating of the selected model against your load requirements before finalizing the design.

Manufacturing & Quality Assurance

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.

Testing and 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, etc. These certifications demonstrate our commitment to quality, safety, and continuous improvement.

Ordering Information & Inquiry Checklist

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.

To receive an accurate quotation and technical recommendation, please provide the following details with your inquiry:

• Required model series (SP13, SP17, SP21, SP29, or other)
• Pin count and gender (male/female)
• Mating-side connector requirement
• Cable outside diameter and conductor size
• Electrical load (current and voltage)
• Mounting style (cable, panel, flange, or docking)
• Operating environment and temperature range
• Order quantity and target delivery schedule

We are committed to providing dependable connectivity solutions and long-term supply support for industrial applications. For related product options, explore the Industrial Waterproof SP21 4 Pin Flange Connector or view our Connectors Video for demonstration details.