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SP Series Circular Connector

>Number Of CoresNumber Of Cores 2-26Pin
Contact DiameterContact Diameter(mm) 1.0/1.5/2.5/3.5mm
IP RatingIP Rating IP68
Shell MaterialShell Material PC/PA66
Temperature RangeTemperature Range -40℃ ~ +85℃
TerminationTermination Solder/Screw Crimping
Rated CurrentRated Current(A) 3A/5A/10A15A/30A
Rated VoltageRated Voltage(Ac.V) 125V/180V/250V/400V/500V
Test VoltageTest Voltage(Ac.V)1Min 1000V/1200V/1500V
Insulation ResistanceInsulation Resistance (MΩ) 2000MΩ
Contact ResistanceContact Resistance (MΩ) ≤5MΩ
CertificationCertification CE,ISO9001, RoHS
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SP Series Circular Connectors: Reliable, Adaptable Solutions for Demanding Environments 

When your project operates in unforgiving conditions—where moisture, dust, or vibration threaten connectivity—the SP Series Waterproof Aviation Connectors strike the balance of rugged performance and precise functionality. Engineered to deliver consistent power and signal transmission, these connectors combine a secure, user-friendly design with industrial-grade durability, making them a trusted choice for applications that can't afford downtime. 

4Pin Connector


SP Waterproof Connector Tailored to Your Requirements: Flexible Configurations 

We design the SP Series to fit your setup, not the other way around: 

Size Versatility: Choose from SP11 (compact for tight spaces) to SP29 (heavy-duty for high-power needs), ensuring a seamless fit for any installation.

SP11 Connector


Pin Count Options: Select 2-pin (for straightforward power links) up to 26-pin (for integrated power and signal transmission), matching the exact wiring demands of your system.

5pin Connector


Sockets That Fit Your Setup (Docking Sockets/Flange Sockets/Rear-Nut Panel Sockets)

SP Connector


Wiring Flexibility: Soldered Connections and Screw Crimping

SP Circular Connector


SP Circular Connector Built for Durability: Premium Materials & Key Advantages

Every component of the SP Series is crafted to withstand harsh environments: 

Housing: Constructed from flame-retardant PC/PA66 (UL94 V-0 rated), this material resists impact, UV degradation, and chemical exposure, ensuring long-term structural integrity.

 SP21 Connector


Contacts: Gold-plated brass contacts minimise resistance, prevent oxidation, and support over 10,000 mating cycles—guaranteeing consistent performance over time.

Electrical Connector


 

Proven Performance Across Applications of SP Waterproof Connector

The SP Series excels in critical, high-demand scenarios:

Outdoor Lighting: Powers streetlights, landscape fixtures, and billboards through rain, dust, and UV exposure, ensuring uninterrupted illumination.

Marine Systems: Withstands saltwater corrosion to support navigation, communication, and bilge pump systems on boats and vessels.

Solar Installations: Endures weather fluctuations to maintain stable connections between panels, inverters, and outdoor solar equipment.

Industrial Machinery: Delivers consistent signals and power to CNC tools, sensors, and automation systems in dusty, high-vibration factory environments.

Agricultural & Construction Equipment: Supports the wiring of excavators, sprayers, and tractors—performing reliably in rough, outdoor conditions.

Remote Communication: Keeps antennas and base stations connected in remote, harsh locations where reliability is non-negotiable.

Item

Parameters

Number of Cores

2-26Pin

Gender

Male/Female

Housing Material

PC/PA66

Cores Material

Brass Plated with Gold

Insulator Material

PPS

Locking System

Screw Locking

Temperature Range

-40℃, +85℃

Rated Current (A)

3A/5A/10A15A/30A

Rated Voltage (AC.V)

125V/180V/250V/400V/500V

Test Voltage (AV.C)1Min

1000V/1200V/1500V

Insulation Resistance ()

2000

Insulation Resistance ()

≤5

Termination

Solder/Screw Crimping


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Customer Reviews

   

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Review Text

   Reliable power for my security cameras


SweetDealsAndSteals  2026-02-02

Used SP13 connectors to wire my new CCTV system. The IP68 rating means I don’t worry about rain or dust, and the locking mechanism keeps them from coming loose. Solid build, works flawlessly so far.
   Ends pump wire short circuits, heavy-duty quality!


CozyHomeShopper  2026-02-02

Finally fixed my submersible pump’s short circuit issue. SP17 is thick and durable, waterproof even underwater. Easy to connect, no power issues—worth every cent!
   Small but strong, perfect for my LED lights!


SweetDealsAndSteals  2026-02-02

These SP11 connectors are tiny but tough. The waterproof seal holds up great in the rain, and the pins connect super securely. No more loose wires in my outdoor lighting setup. Great value for the price!
   No more water damage for my CCTV cameras!


GourmetGoddess  2026-02-02

My old camera connectors kept failing from rain, SP13 is a game-changer. IP68 waterproof holds up, locking design never comes loose. Sturdy build, totally reliable for outdoor use.
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Manufacturer Address:Baoan District, Shenzhen City, Guangdong Province,China

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