5 Pin SD28 / SP28 Waterproof Cable Connector with Wire

LD20/SP20 Industrial Flange Connector Dimensions and Specs

SD28 Waterproof Connector with Wire: A Flexible Industrial Connection Platform

The SD28 Waterproof Connector with Wire is a heavy-duty circular connector series designed for reliable power and signal transmission in industrial and outdoor environments. Built with a reinforced structure and dependable sealing system, the SD28 series ensures stable performance in applications exposed to vibration, dust, moisture, and long-term mechanical stress.

Rather than a single model, SD28 is a complete connector platform, offering 2 to 26 pin configurations to support everything from simple power connections to complex multi-circuit systems. Delivered as a pre-wired cable assembly, it helps equipment manufacturers standardize installation and improve operational reliability.

One Connector Series, Multiple Electrical Solutions

The biggest advantage of the SD28 series is its flexibility. Engineers can select the appropriate pin configuration without changing the connector family, simplifying equipment design, maintenance, and spare part management.

Available configurations:

• 2 - 26 Pin options for power, signal, or hybrid circuits
• Support for low to medium and higher current applications
• Compatible with industrial control and power distribution systems
• Suitable for both indoor and outdoor installations

Core product advantages:

• Waterproof and dust-resistant design for harsh environments
• Strong mechanical housing for heavy-duty applications
• Secure locking structure to prevent accidental disconnection
• Stable electrical contact for continuous operation
• Long service life under industrial conditions

Engineered Cable Assembly for Real Equipment Use

We focus on delivering ready-to-install connection solutions, not just connector components. Every SD28 cable assembly is produced according to practical installation and electrical requirements.

Customization capabilities include:

• Custom cable length based on equipment layout
• Selection of wire cross-section according to current load
• Industrial-grade cable materials (PVC / rubber / PUR)
• Shielded cable options for signal stability
• Straight or right-angle cable outlet structures
• Multi-branch cable harness solutions
• OEM and private-label production

This approach reduces installation risk and improves production efficiency for equipment manufacturers.

Typical Applications for SD28 Connector

The SD28 waterproof connector with wire is widely used in systems where reliability and environmental protection are essential:

• Industrial machinery and automation equipment
• Outdoor power and control systems
• LED lighting and display installations
• Construction and mining machinery
• Renewable energy and energy storage equipment
• Marine and transportation electrical systems

Selection Guidance: Matching the SD28 to Your Application

When evaluating the SD28 series for your equipment, consider these decision points:

• Pin count and circuit layout: Confirm the number of circuits and whether you need power, signal, or a hybrid arrangement before selecting the configuration.
• Current and voltage requirements: Match the wire cross-section and contact rating to your actual electrical load; the series supports low to medium and higher current applications.
• Environmental exposure: Verify the sealing performance needed for your installation location, whether indoor, outdoor, or in high-vibration machinery.
• Cable outlet orientation: Choose straight or right-angle outlets based on your equipment layout and space constraints.
• Mating-side compatibility: Confirm the mating connector or panel receptacle required for your system before ordering.

Manufacturing Strength - Built for Long-Term Supply, Not One-Time Orders

Industrial customers often worry about consistency, delivery stability, and supplier reliability more than the connector itself. Our factory is structured to address exactly these concerns.

We operate a fully integrated manufacturing system covering connector production, cable processing, assembly, and quality inspection. This allows us to maintain strict control over performance and ensure repeatable results across large production batches.

Why customers trust our factory:

• 15+ years specialized in circular connectors and cable assemblies
• Stable production capacity supporting continuous orders
• Standardized manufacturing processes for batch consistency
• Dedicated quality control team for every production stage
• Strong experience supporting OEM equipment manufacturers
• Reliable delivery planning for long-term projects
• Export experience serving customers in multiple industrial markets

In short, we are not just supplying connectors - we are supporting stable equipment production.

Quality Control Focused on Field Reliability

Every SD28 connector assembly is tested with real application conditions in mind, ensuring dependable performance after installation.

Quality assurance includes:

• Waterproof sealing performance testing
• Electrical continuity and load testing
• Mechanical durability and vibration resistance testing
• Cable pull and strain resistance testing
• Final functional inspection before shipment

Certifications That Support Global Projects

Our production system complies with internationally recognized standards, helping customers meet regulatory and quality requirements in global markets:

• ISO9001 Quality Management System
• CE Certification
• RoHS Environmental Compliance
• IP-rated waterproof performance verification

Inquiry Checklist for SD28 Cable Assemblies

To receive an accurate quotation and configuration recommendation, please provide the following details:

• Required pin count and circuit function (power, signal, or hybrid)
• Mating-side connector or panel receptacle requirement
• Cable length and outlet orientation (straight or right-angle)
• Wire cross-section and conductor material requirements
• Electrical load (current and voltage) and environmental conditions
• Order quantity and target delivery schedule

For related connector options, see the 12G Series Circular Connectors or review the SP28/SD28 2-26 Pin Secure Docking Cable Connector for additional configuration details.

A Connector Series Designed for Scalable Industrial Systems

The SD28 Waterproof Connector with Wire (2 - 26 Pin) provides a flexible, durable, and reliable connection solution for modern industrial equipment. Backed by strong manufacturing capability and stable production control, it supports customers who require consistent quality and dependable long-term supply.