Description Related Cases Related Application Product Catalog Reviews
Language
РусскийespañolعربيPortuguês
YOUR POSITION：HOME > Industry > Electrical Control Connectors >
SP21 Connectors
< >

SP21 IP68 Connector for Smart Electrical Control Boxes

>Number Of CoresNumber Of Cores 3-12Pins
Contact DiameterContact Diameter(mm) 1.0 mm - 3.0mm
IP RatingIP Rating IP68
Shell MaterialShell Material PC/PA66
Temperature RangeTemperature Range -40℃ ~ +85℃
TerminationTermination Solder
Rated CurrentRated Current(A) 5A-30A
Rated VoltageRated Voltage(Ac.V) 400V-500V
Test VoltageTest Voltage(Ac.V)1Min 1200V-1500V
Insulation ResistanceInsulation Resistance (MΩ) 2000MΩ
Contact ResistanceContact Resistance (MΩ) ≤5MΩ
CertificationCertification CE, RoHS,BASCI,ISO9001
Get Quote
+86-19924482730

SP21 IP68 Connector for Smart Electrical Control Boxes

The SP21 IP68 connector is a rugged waterproof circular connector designed for reliable electrical connections in smart electrical control boxes and automation control systems. With its strong sealing performance and durable construction, it ensures stable operation even in demanding industrial environments.

Reliable Waterproof SP21 Connector for Control Equipment

Featuring an IP68 waterproof rating, the SP21 connector effectively protects internal contacts from dust, moisture, and harsh environmental conditions. This makes it highly suitable for long-term use in intelligent control equipment and outdoor electrical installations.

Durable Circular Connector for Industrial Control Systems

The SP21 circular connector is engineered with a robust structure that provides excellent mechanical strength and vibration resistance. It is widely used in smart control cabinets, automation equipment, industrial electronics, and electrical control boxes where stable and secure connections are essential.

Connectors

Item

Parameters

Number of Cores

2-12Pin

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)

5A-30A

Rated Voltage (AC.V)

400V-250V

Test Voltage (AV.C)1Min

1200V-1500V

Insulation Resistance (㏁)

2000㏁

Contact Resistance (㏁)

≤5㏁

Termination

Solder


Related Products

More》

Related Resource


SP21 IP68 Connector
SP21 IP68 Connector for Smart Electrical Control BoxesRelated Cases
D-Sub Connectors in Industrial Control Panels in the United Kingdom

1. D-Sub Connectors in Industrial Control Panels in the United Kingdom

Learn how D-Sub connectors are used in industrial control panels in the United Kingdom, supporting multi-signal connections in compact interfaces.

2. Integrating Interconnections in Electrical Control Systems

M8 Circular Connectors are essential for reliable electrical control system integration in industrial automation, offering IP67-rated durability for PLCs, sensors, and harsh environments. Their compact, modular design supports hot-swapping and EMI shielding, ensuring seamless power/signal transmission with minimal maintenance.
Integrating Interconnections in Electrical Control Systems
Heavy-Duty Connectors in Power Distribution Systems for Industrial Equipment in Spain

3. Heavy-Duty Connectors in Power Distribution Systems for Industrial Equipment in Spain

Explore how heavy-duty connectors are used in power distribution systems for industrial equipment in Spain, supporting high-current connections.
SP21 IP68 Connector for Smart Electrical Control BoxesRelated Application
MIL-DTL-5015 Connectors in Industrial Motor Control Systems
MIL-DTL-5015 Connectors in Industrial Motor Control Systems
MIL-DTL-5015 connectors are widely used to connect motor drives, power modules, sensors, and control units, providing stable power and signal transmission throughout the system.
GX20 Connectors in Automated Packaging Control Systems
GX20 Connectors in Automated Packaging Control Systems
GX20 connectors are widely used to connect motors, control units, sensors, and power distribution modules, providing stable power and signal transmission throughout packaging lines.
SP17 IP68 Connectors in Electronic Control Equipment
SP17 IP68 Connectors in Electronic Control Equipment
SP17 IP68 connectors are widely used to connect sensors, actuators, power modules, and control interfaces, providing stable electrical connections even in harsh environments.
M12 Connectors in Industrial PLC Systems
M12 Connectors in Industrial PLC Systems
M12 connectors are widely used to connect sensors, actuators, input/output modules, and communication networks to programmable logic controllers, supporting efficient and reliable system operation.
Related Catalog
Learn More
SP Waterproof Connector
PDF
Download Resources
Get More Downloads >

Customer Reviews

   

Write a Review
Score
 Remove

Review Title

Review Text

   Durable Industrial Standard (M8-5 Pin)


WindyTrail  2026-02-04

M8 5-pin connectors are strong, tough, and suitable for heavy-duty industrial use.
   Smooth Alignment and Secure Fit (M8-3 Pin)


 2026-02-04

Pins align precisely, ensuring reliable electrical contact every time.
   Long-Term Dependability (M8-5 Pin)


MapleNavigator  2026-02-04

M8 connectors maintain excellent performance even after repeated mating cycles.
   Ideal for Industrial Projects (M8-4 Pin)


SunstoneRiver  2026-02-04

High-quality M8 connectors suitable for professional and industrial applications.
Need Help?
Please leave your contact information to get our latest catalog
Get In Touch Now >
KMYD Connectors

Tel: +8619924482730

Email: info@kmydconnector.com

MP/WhatsApp: +86-19924482730

Manufacturer Address:Baoan District, Shenzhen City, Guangdong Province,China

NEW KEYWORD

About Us

Products

Information

Website Map YouTube
Copyright © 2026 KMYD CONNECTOR ALL RIGHTS RESERVED​