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SP28 / SD28 2-26 Pins Connector IP68 Waterproof

>Number Of CoresNumber Of Cores 2 - 26Pins
Contact DiameterContact Diameter(mm) 1.0mm/2.8mm/3.6mm
IP RatingIP Rating IP68
Shell MaterialShell Material Thermoplastic PA66/PA6
Temperature RangeTemperature Range -25℃ ~ +85℃
TerminationTermination Welding
Rated CurrentRated Current(A) 5A/10A/25A
Rated VoltageRated Voltage(Ac.V) 250V/380V
Test VoltageTest Voltage(Ac.V)1Min 1500V
Insulation ResistanceInsulation Resistance (MΩ) 2000MΩ
Contact ResistanceContact Resistance (MΩ) ≤5MΩ
CertificationCertification CE, RoHS,BASCI,ISO9001
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+86-19924482730

SP28 / SD28 2 - 26 Pins Connector IP68 Waterproof - High-Density Industrial Connectivity Solution
The SP28 / SD28 IP68 Waterproof Connector Series is designed for industrial systems that require high pin capacity, stable transmission, and reliable environmental protection within a single connection interface. Supporting a wide range of configurations from 2 to 26 pins, this series is suitable for everything from basic power applications to complex integrated control systems.
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Built with a rugged circular structure and industrial-grade sealing design, the SP28 / SD28 series is widely used in equipment operating under demanding conditions where connection stability and long-term durability are essential.

One Series, Multiple System Possibilities
Different industrial systems require different connection architectures. Instead of limiting equipment design to a fixed interface, the SP28 / SD28 series provides scalable connectivity options for multiple application levels.

Low Pin Configurations (2 - 4 Pins)
Suitable for stable power supply and basic electrical transmission.

Medium Pin Configurations (5 - 12 Pins)
Ideal for integrated power and signal systems used in automation and intelligent equipment.

High Pin Configurations (13 - 26 Pins)
Designed for complex multi-signal communication, data transmission, and centralized control systems.

This flexibility allows engineers to simplify equipment structure while improving connection efficiency and reducing interface quantity.

Built for Harsh Industrial Environments
Industrial systems often operate under vibration, dust, humidity, and continuous working cycles. The SP28 / SD28 series is developed to maintain stable performance in these challenging conditions.

IP68 Waterproof Protection
The sealing structure provides reliable protection against water and dust intrusion, helping ensure stable operation in outdoor and industrial environments.

Robust Circular Housing
The reinforced connector body improves mechanical strength and long-term durability during repeated use.

Stable Electrical Contact System
Precision-engineered contacts ensure reliable conductivity and minimize signal loss or connection instability.

Industrial-Grade Reliability
Designed for long service life under continuous operation and demanding environmental conditions.

Professional Manufacturing Creates Product Confidence
A high-performance connector depends not only on design, but also on manufacturing capability.
We are a professional connector manufacturer with more than 15 years of experience in waterproof connectors and cable assembly production, serving industries such as automation, energy, transportation, communication, medical equipment, and smart manufacturing.
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Our factory operates a complete in-house production system, including:
Mold development and tooling production
Zinc alloy die-casting
CNC machining and precision processing
Injection molding

Connector assembly and cable integration

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By controlling the entire production process internally, we ensure:

Stable product consistency

Faster lead times
Reliable quality management
Better support for customized projects
Strict Quality Assurance Standards
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Each connector undergoes comprehensive inspection procedures before shipment:
Waterproof sealing verification
Electrical conductivity testing
Plugging and mating cycle testing
Mechanical durability inspection

Dimensional precision verification

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Our products are manufactured under ISO9001 quality management systems and comply with international certifications including CE and RoHS.

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Customization Support for Industrial Projects
We understand that different equipment requires different connection solutions. We provide flexible OEM and ODM services, including:
Pin configuration customization
Cable assembly integration
Shielded and anti-interference structures
Housing and structural optimization
Application-specific connection solutions
Our engineering team supports customers from prototype development to mass production.

Application Industries
Industrial automation systems
Outdoor power and communication equipment
Smart manufacturing devices
Energy and electrical systems
Medical and laboratory equipment

Transportation and control systems


More Than a Connector
The SP28 / SD28 series is not just a component - it is a scalable industrial connection platform designed to support modern equipment integration, simplify system architecture, and improve long-term operational reliability.

Contact Us
We provide samples, technical consultation, and customized production solutions based on your project requirements.
Contact us today for professional support and competitive quotations.

 Item

 Parameters

 Number of Cores

 2-26Pin

 Gender

 Male/Female

 Housing Material

 Thermoplastic PA66/PA6

 Cores Material

 Brass Plated with Silver

 Insulator Material

 PPS

 Locking System

 Threaded Connection

 Temperature Range

 -20℃, +85℃

 Rated Current (A)

 5A/10A/25A

 Rated Voltage (AC.V)

 250V/380V

 Test Voltage (AV.C)1Min

 1500V

 Insulation Resistance (㏁)

 2000㏁

 Contact Resistance (㏁)

 ≤5㏁

 Termination

 Welding


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Customer Reviews

   

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   Way better than cheap connectors


SeasonalShopper  2026-02-02

Swapped out old plastic plugs for SD16 on my outdoor CCTV. Powers + sends data flawlessly, even in fog. Installation took 2 mins max—love it!
   Waterproof and easy


DIYDecorGal  2026-02-02

Worked like a charm for my landscape lights. The SD16 connectors snap into place and keep moisture out. So much better than old cable nuts!
   Sturdy for my workshop gear


ShoeLover247  2026-02-02

Used SD16 on my small air compressor’s control line. Thread lock holds super well, no loose connections from vibration. IP68 lives up to the hype!
   High quality connectors


HomeGoodsGuru  2026-02-02

Just installed these for my garden LED spotlights—so easy to wire up, and the waterproof seal is tight. Rained heavy 2 days later, zero issues. Worth every penny!
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