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LD28/SP28 Waterproof Square Flange Connector 5 Pins Panel Mount

MOQMOQ >200
PricePrice $4.16 - $5.57
>Number Of CoresNumber Of Cores 2 - 9 Pins
Contact DiameterContact Diameter(mm) 1.8mm/2.8mm/3.6mm
IP RatingIP Rating IP68
Shell MaterialShell Material PC,Nylon66
Temperature RangeTemperature Range -25°C to +85°C
TerminationTermination Screw Crimping
Rated CurrentRated Current(A) 5A/10A/45A
Rated VoltageRated Voltage(Ac.V) 250V
Test VoltageTest Voltage(Ac.V)1Min 1500V
Insulation ResistanceInsulation Resistance (MΩ) 2000MΩ
Contact ResistanceContact Resistance (MΩ) ≤ 1 mΩ
CertificationCertification CE, RoHS,BASCI,ISO9001
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LD28/SP28 Waterproof Square Flange Connector – 5-Pin Panel Interface

The LD28/SP28 5-pin waterproof square flange connector is designed for applications requiring a secure, panel-mounted connection with stable power and signal transmission. Its square flange structure and 5-pin configuration provide a reliable interface for equipment demanding both mechanical stability and consistent electrical performance in harsh environments.

LD28 Connector

Unlike docking or cable-mount solutions, this flange-type connector is optimized for fixed installation on equipment panels, ensuring long-term connection integrity and reduced risk of loosening under vibration or continuous operation.

Built for Stable Panel Integration

This connector is specifically developed for systems that prioritize permanent installation and structural reliability. The square flange design provides strong mounting support and precise alignment, making it suitable for industrial equipment requiring robust and organized wiring architecture.

Key Advantages of the LD28/SP28 Square Connector

  • Square Flange for Strong Panel Mounting: The four-point fixed structure ensures firm installation, improving resistance to vibration and mechanical stress.
  • 5 Pins for Balanced Power and Signal Use: Designed for moderate-complexity systems, supporting both power supply and signal transmission in a single interface.
  • Reliable Waterproof Protection: The sealing structure helps protect internal contacts from water, dust, and environmental contamination, ensuring stable long-term operation.
  • Stable Electrical Contact Performance: Precision-engineered contacts ensure low resistance and consistent conductivity for continuous-use scenarios.
  • Reduced Maintenance Risk: Fixed installation design minimizes accidental disconnection and improves system reliability over time.
LD28 Connector

Manufacturing Capability You Can Rely On

15+ Years of Connector Expertise

We specialize in industrial circular connectors and cable assemblies, serving global customers across automation, energy, and equipment manufacturing industries.

Connector

Fully Controlled Production System

Our in-house manufacturing includes mold design, die-casting, CNC machining, injection molding, assembly, and testing—ensuring stable quality and efficient delivery.

SP13 Connector

Strict Quality Testing Process

Each connector is tested for waterproof performance, electrical conductivity, mechanical strength, and dimensional accuracy before shipment.

Connector

OEM/ODM Customization Support

We provide flexible customization options including pin layout, cable design, materials, and packaging solutions based on project requirements.

Typical Applications for the LD28/SP28 Connector

  • Industrial control panels
  • Automation equipment
  • Power distribution systems
  • Monitoring and detection devices
  • Machinery and manufacturing systems
  • Outdoor electrical installations

Selection Considerations

When evaluating this connector for your project, confirm the mating-side requirement, pinout or drawing, cable outside diameter, conductor size, electrical load, and operating environment. These details ensure the connector matches your application's mechanical and electrical demands.

Why This Connector Stands Out

If your application requires a stable, permanently mounted waterproof connector with balanced 5-pin functionality, this square flange design offers a reliable and long-lasting solution for industrial environments.

Next Steps

Looking for a stable panel-mounted waterproof connector solution? Contact us today for samples, technical drawings, or a competitive quotation. For related options, explore the Waterproof Connectors catalog or review the LD28/SP28 Square Flange Connector Dimensions and Materials for further specification details.

Item Parameters
Number of Cores 2 - 9 Pin
Gender Male/Female
Housing Material PC, Nylon66
Cores Material Brass Plated with Gold
Insulator Material PPS
Locking System Threaded Connection
Temperature Range -25℃ to +85℃
Rated Current (A) 5A / 10A / 45A
Rated Voltage (AC.V) 2500V
Test Voltage (AC.V) 1 Min 1500V
Insulation Resistance (MΩ) 2000MΩ
Contact Resistance (MΩ) ≤1MΩ
Termination Screw Crimping

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KMYD Connectors KNOWS WHAT YOU NEED,
LD28/SP28 Waterproof Square Flange Connector 5 Pins Panel Mount Market Leader!

Customer Reviews

   

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   Tiny & Reliable LD12 connectors!


DailyDealJunkie  2026-02-02

Perfect for my small garden LEDs. Easy screw-on install, IP68 waterproof holds up in rain. Compact size fits 5-8mm cables like a glove.
   Tiny but Tough! Perfect for Small Outdoor Projects


OnTheGoShopper  2026-02-02

I needed a compact waterproof connector for my garden LED strip lights, and the LD12 is exactly what I was looking for. The 2-core model fits perfectly with my 6mm cable, and the screw terminals made installation super easy—no soldering required!It’s been through rain and even a few accidental spl
   Solid Industrial Workhorse


AmazonAddict777  2026-02-02

Our go-to for factory sensors. 4-core, 15A rating works for power + signal. IP68 keeps dust/water out, and the screw terminals are rock-solid. Durable and affordable.
   Heavy-Duty Power Connector


StyleSavvy13  2026-02-02

Used this 3-core model for my EV charger. 50A rating handles high power, and the IP68 seal keeps it safe in all weather. Sturdy build, easy to install. Highly recommend for high-power projects!
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Manufacturer Address:Baoan District, Shenzhen City, Guangdong Province,China

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