LD28/SP28 Rear Nut Mount Waterproof Connector 2-9 Pin IP68

LD28/SP28 Panel Mount Connectors Dimensions and Materials

LD28/SP28 Rear Nut Mount Waterproof Connector 2-9 Pin

The LD28/SP28 Rear Nut Mount Waterproof Connector is designed for heavier-duty panel wiring where a larger cable entry, stronger current capacity, and reliable sealing are required. With its rear nut mounting structure, this connector can be firmly fixed onto equipment panels, distribution boxes, control cabinets, outdoor devices, and industrial enclosures.

As a large-size waterproof circular connector, the LD28/SP28 series is suitable for applications that need both high-load power connection and multi-core signal transmission. It supports 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 7 pin, and 9 pin options, giving engineers more flexibility when designing equipment wiring systems.

IP68 Protection and Secure Threaded Coupling

The connector is built with an IP68 waterproof structure to help protect the electrical connection from water, dust, humidity, and outdoor exposure. Its threaded coupling design allows the mating connector to be tightened securely, reducing the risk of loosening caused by vibration, cable movement, or long-term operation.

Cable Range and Current Capacity

The LD28/SP28 rear nut mount connector supports 10-15mm cable outer diameter and is suitable for 0.5-6mm² cable wiring depending on the pin layout. The 2 pin, 3 pin, and 4 pin versions can support up to 45A current, making this series suitable for higher-power equipment and outdoor electrical systems.

Material Construction and Termination

Made with flame-retardant PC/Nylon66 housing, PPS insulation, and plated brass contacts, the connector offers stable electrical performance, good insulation safety, and durable mechanical strength. The screw termination design also helps simplify wiring during assembly, maintenance, and field installation.

Key Advantages

• Larger LD28/SP28 size for heavy-duty waterproof wiring
• Rear nut mount structure for secure panel installation
• IP68 protection against water, dust, and moisture
• 2-9 pin options for power and signal connection
• Up to 45A current capacity for high-load applications
• Supports 10-15mm cable outer diameter
• Threaded coupling helps prevent accidental loosening
• Screw termination for convenient wiring and maintenance
• Flame-retardant housing and durable internal insulation
• Suitable for OEM/ODM customized connector projects

Typical Applications

The LD28/SP28 rear nut mount waterproof connector is suitable for industrial control cabinets, power equipment, outdoor LED systems, automation machinery, marine equipment, solar energy systems, communication devices, security equipment, charging equipment, distribution boxes, and other applications requiring stable waterproof panel connections. For related panel mount options, see LD28/SP28 Panel Mount Connectors Dimensions and Materials.

Selection Considerations

When selecting the LD28/SP28 connector for your project, consider the following decision points:

• Pin count and layout: Choose between 2-9 pin configurations based on the number of power or signal circuits required.
• Current requirement: The 2-4 pin versions support up to 45A; confirm the rating for higher pin counts before specifying.
• Cable preparation: Verify that your cable outer diameter falls within the 10-15mm range and that conductor size suits the 0.5-6mm² termination range.
• Mating side: Confirm whether you need a matching plug, socket, or cable assembly to complete the connection.
• Environmental exposure: The IP68 rating suits outdoor or washdown environments, but confirm the unmated protection level for your specific application.

Factory Strength and Quality Evidence

We are a Shenzhen-based connector manufacturer with integrated production capabilities for waterproof connectors, circular connectors, aviation plugs, RF connectors, DIN connectors, cable assemblies, and customized electrical connection solutions. Our factory supports mold design, injection molding, metal parts processing, die-casting, assembly, testing, and packaging, allowing us to manage product quality and production efficiency from the beginning of manufacturing.

To ensure consistent product performance, our factory uses professional inspection and testing equipment, including waterproof testing equipment, air tightness testers, insertion and withdrawal force testers, salt spray testing machines, voltage withstand testers, insulation resistance testers, electrical performance testers, and high-precision measuring instruments. These testing processes help verify sealing reliability, contact stability, corrosion resistance, insulation safety, and dimensional accuracy.

Our production is controlled under a strict quality management system, and our products can meet international market requirements such as ISO9001, CE, RoHS, UL, BSCI, and national high-tech enterprise certification. With engineering support and flexible customization capability, we can provide OEM and ODM services for cable length, pin arrangement, connector color, mounting style, molded cable assembly, special packaging, and application-specific connector designs.

Customization and Inquiry Checklist

To help us match the correct LD28/SP28 configuration for your application, please provide the following information when making an inquiry:

• Required pin count and pinout or wiring diagram
• Mating connector type (plug, socket, or pre-assembled cable)
• Cable outer diameter and conductor cross-section
• Operating current and voltage for your load
• Panel thickness and mounting hole dimensions
• Environmental conditions (indoor, outdoor, washdown, chemical exposure)
• Order quantity and target delivery schedule

For a related rear nut mount option with a smaller form factor, review the LD20/SP20 2-7 Pin Waterproof Rear Nut Mount Connector.