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M12 Circular Connector

Your Trusted Source for High-Quality Circular Electrical Connectors

Welcome To The World of M12 Circular Connectors

1. Transmits signals, data and power, applicable to multiple fields such as industrial automation and sensors.
2. Threaded locking design ensures high resistance to vibration and shock, providing a stable and reliable connection.
3. With protection ratings up to IP67/IP68/IP69K, it has excellent sealing performance against water and dust.
4. Shielding options: unshielded, shielded and grounded types are available, offering strong anti - interference capabilities.
5. Universal design can meet a variety of industrial connection requirements.
6. Multiple coding types (A/B/D/K/L/S/T/X etc.) with anti - misplug design to prevent incorrect insertion.
7. Can be interoperated with mainstream brand M12 connectors, facilitating replacement and system integration.
8. Complies with the IEC61076 standard. A complete range of products is available, supporting both standard and customized application selections.
M8 Circular Connectors
The M12 Circular Connector Has A Protection Rating Of Ip67 And Above. It Is Waterproof, Dustproof, Oil - Resistant And Resistant To Chemical Corrosion. It
Can Operate Within A Wide Temperature Range From - 40℃ To + 85℃, Ensuring Stable And Reliable Performance In Extreme Environments. With A Threaded Locking Design, It Is Resistant To Vibration And Shock, Continuously Guaranteeing Excellent Electrical Performance.
It Is Widely Used In Power, Signal And Data Transmission Connections In Industrial Automation, Sensor Systems, Robots, Rail Transit, New Energy
Quipment And Intelligent Production Lines Of Industry 4.0.
Connoder Provides A Full Range Of Standard And Customized M12 Connectors And Cable Assemblies. It Supports Multiple Coding Types (Such As (A/B/D/K/L/S/T/X, Etc.) And Shielding Solutions, Is Compatible With Mainstream Brands, And Helps With The Efficient Interconnection Of Devices And Reliable System Integration.

M12 Circular Connector Types

Explore our M12 circular connector range today to discover the best connectivity solution for your project! If you need more technical details or customization advice on the M12 circular connector, please feel free to contact us for more information and support.
M12 Panel Mount Connector

M12 Panel Mount Connector

Suitable for perforated installation on the equipment housing or panel, providing a stable external interface.
Installation methods: Front - panel mounting, Rear - panel mounting.
Connection methods: Wire - welding, PCB - plugging.
Protection level: IP67/IP68

M12 Assembled Connector

M12 Assembled Connector

A flexible connection solution designed for industrial automation, especially suitable for scenarios that require on - site assembly or customized wiring.
Material types: Plastic assembly, Metal assembly
Connection methods: Screw - terminal connection, Welding connection
Protection level:  IP67/IP68

M12 Pre-Molded Cable Assemblies

M12 Pre-Molded Cable Assemblies

The precision injection - molding of the connector and cable is completed before leaving the factory, ensuring consistency and high reliability.
Cable types: PVC, PUR.
Length customization: Custom lengths as specified by customers are supported, reducing on - site wiring and connection work.
Protection level:  IP67/IP68

M12 Square Flange Connector

M12 Square Flange Connector

Suitable for fixed installation on equipment panels or enclosures with square - shaped mounting requirements, ensuring a reliable external connection interface.
Installation methods: Front - panel mounting
Connection methods: Solder connection
Protection level: IP67/IP68

M12 Angled Socket Connector

M12 Angled Socket Connector

Suitable for perforated installation on the equipment housing or panel, providing a stable external interface.
Installation methods: Rear - panel mounting.
Connection methods: PCB - plugging.
Protection level: IP67/IP68



M12 Circular Connector

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M12 Circular Connector

Downloads on The Topic of Circular Connectors


Connoder European - standard M - series Circular Connectors --- M12 Series ABCD

Applications of Circular Connectors

Circular plug connectors and circular power connectors are used across various industries.
Connoder’s connectors are engineered for durability, with IP67/IP68 ratings for water and dust resistance, ensuring performance in harsh environments.
M5 Circular Connector Industrial Automation
Industrial Automation
Connection of miniature sensors (proximity, photoelectric, capacitive, ultrasonic).
Signal transmission for micro-actuators.
Compact connections in robotic arms and precision automation equipment.
M5 circular connector Robotics
Robotics
Data and control signal interface in collaborative robots (cobots).
Encoder and feedback sensor connections in robotic joints.
Use in compact robotic grippers and vision modules.
M5 circular connector Measurement & Testing Instruments
Measurement & Testing Instruments
Connection of portable measuring devices (temperature, pressure, vibration).
Data acquisition systems requiring small and durable connectors.
Precision test and calibration tools.
M5 circular connector Medical Technology
Medical Technology
Miniature medical devices and diagnostic equipment.
Patient monitoring systems where compact and safe connections are critical.
Portable medical instruments requiring quick-connect interfaces.
M5 circular connector Communication & Electronics
Communication & Electronics
Antenna connections for small wireless modules.

Board-to-cable and cable-to-cable links in compact electronic devices.

Industrial handheld terminals and mobile controllers.

Circular Connector Technical Guide

Comparison of Pin Numbers and Coding Differences of Circular Connectors

Shell Material
Brass Nickel Plated/Zinc Alloy Nickel Plated/PA+GF
Sealing Material
Epoxy Resin/Rubber
Contact Material
Phosphor Copper Gold Plated/Brass Gold Plated
Insulator Material
PA+PA+GF/TPU
Molding Material
TPU/PVC
Contact Resistance
≤5mΩ
Durability
≥ 500 Cycles
Insulation Resistance
100 MΩ
Applicable Temperature
-40℃ Tо +80℃
Waterproof Grade
IP67/IP68

M12 Circular Connectors Types With Different Coding

Different Installation Methods of Circular Connectors

M12 Rear - Panel Mounting With Front Locking
M12 Rear - Panel Mounting With Front Locking
M12 Front - Panel Mounting With Rear Locking
M12 Front - Panel Mounting With Rear Locking

Different Opening Sizes of M12 Circular Connectors

Opening Size for M12 Circular Connector with M12×1.0 Threads
Opening Size for M12 Circular Connector with M12×1.0 Threads
Opening Size for M12 Circular Connector with M16×1.5 Threads
Opening Size for M12 Circular Connector with M16×1.5 Threads
Opening Size for  M12 Circular Connector Square Flange Socket
Opening Size for  M12 Circular Connector Square Flange Socket

Different Wiring Methods for M12 Circular Connectors

M12 Circular Connector PCB Type
M12 Circular Connector PCB Type
M12 Circular Connector Solder Type
M12 Circular Connector Solder Type
M12 circular connector Screw-type wiring
M12 circular connector Screw-type wiring

Wiring Definition of M12 Circular Connectors

Pins 2 Pin Core Color Pins 3 Pin Core Color Pins 4 Pin Core Color A B Code
1 BN 2 Pin Core Color 1 BN 3 Pin Core Color 1 BN 4 Pin Core Color
2 - 2 Pin Core Color 2 - 2 Pin Core Color 2 WH 4 Pin Core Color
3 BU 2 Pin Core Color 3 BU 3 Pin Core Color 3 BU 4 Pin Core Color
4 BK 3 Pin Core Color 4 BK 4 Pin Core Color
-
Pins 4 Pin Core Color D Code Pins 5 Pin Core Color Pins 6 Pin Core Color
1 YE 4 Pin Core Color 1 BN 5 Pin Core Color 1 BN 6 Pin Core Color
2 WH 4 Pin Core Color 2 WH 5 Pin Core Color 2 WH 6 Pin Core Color
3 OG 4 Pin Core Color 3 BU 5 Pin Core Color 3 BU 6 Pin Core Color
4 BU 4 Pin Core Color 4 BK 5 Pin Core Color 4 BK 6 Pin Core Color
5 GY 5 Pin Core Color 5 - 6 Pin Core Color
6 GY 6 Pin Core Color
7 RD 6 Pin Core Color
-
Pins 8 Pin Core Color Pins 12 Pin Core Color Pins 17 Pin Core Color
1 WH 8 Pin Core Color 1 BN 12 Pin Core Color 1 BN 17 Pin Core Color
2 BN 8 Pin Core Color 2 BU 12 Pin Core Color 2 BU 17 Pin Core Color
3 GN 8 Pin Core Color 3 WH 12 Pin Core Color 3 WH 17 Pin Core Color
4 YE 8 Pin Core Color 4 GN 12 Pin Core Color 4 GN 17 Pin Core Color
5 GY 8 Pin Core Color 5 PK 12 5 PK 17 Pin Core Color
6 PK 8 Pin Core Color 6 YE 12 Pin Core Color 6 YE 17 Pin Core Color
7 BU 8 Pin Core Color 7 BK 12 Pin Core Color 7 BK 17 Pin Core Color
8 RD 8 Pin Core Color 8 GY 12 Pin Core Color 8 GY 17 Pin Core Color
9 RD 12 Pin Core Color 9 RD 17 Pin Core Color
10 VT 12 Pin Core Color 10 VT 17 Pin Core Color
11 OG 12 Pin Core Color 11 OG 17 Pin Core Color
12 LTGN 12 Pin Core Color 12 LTGN 17 Pin Core Color
13 LTBU 17 Pin Core Color
14 BKWH 17 Pin Core Color
15 BNWH 17 Pin Core Color
16 RDWH 17 Pin Core Color
17 BUWH 17 Pin Core Color

Global Compatibility and Mil-Spec Solutions

Our circular mil spec connectors and circular plug connectors meet stringent global requirements and are ideal for harsh industrial and outdoor environments. We also offer circular plastic connectors and circular power connectors to meet specific application requirements.
Explore our catalog of high-reliability connectors, including our complete M-series lineup, compatible with leading brands such as:
For more technical specifications and support, visit our company page: 
www.connoder.com

Why Choose Connoder Circular Connectors?

With years of expertise, Connoder delivers:

Quality Assurance

ISO-certified manufacturing processes.

Customization

Tailored solutions for unique applications.

Global Support

Dedicated customer service and technical support.

Innovation

Cutting-edge designs for modern connectivity needs.

Certification

ISO 9001 and ISO 14001 certified.

Sales Network

Global customer base in over 50 countries.

Why Choose Connoder Circular Connectors?

If you're searching for reliable, custom-engineered circular connectors for your project, connoder is your trusted partner. 
Contact us today to request a quote or a free sample.

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