M12 Connectors
M12 Connectors
Features
– Series: M Series Circular Connector
– Model: M12 Connector
– Pin Configurations: 2, 3, 4, 5, 6, 8, 12, and 17 poles available
– Gender: Male and Female (Plug and Socket)
– Coding Options: A, B, D, X, S, T, K, and L-coded versions available
– Standards: Compliant with IEC 61076-2-101 and IEC 61076-2-109
– Protection Rating: IP67, IP68, and IP69K waterproof protection available
– Locking Type: Threaded locking and push-pull locking options available
– High-Speed Transmission: X-coded versions support up to 10Gbps Ethernet communication
– Applications: Suitable for sensors, industrial Ethernet, fieldbus, automation, and power transmission
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M12 Circular Connectors | Male & Female Industrial Connectors, A/D/X-Coded, IP67/IP68/IP69K Waterproof
What Is an M12 Connector?
M12 connectors are compact industrial circular connectors with a 12mm metric threaded locking interface.They are widely used in sensors, actuators, industrial Ethernet, fieldbus communication, and power delivery in automation systems.
Our M12 circular connectors are designed for reliable operation in harsh environments. Moreover, we offer various pin counts, encoding types, orientations, mounting methods, and waterproof ratings to meet a wide range of industrial application needs.
Whether you need M12 sensor connectors, M12 Ethernet connectors, or M12 power connectors, we provide reliable and durable connector solutions for industrial equipment, outdoor systems, and automation networks.
Advantages of Our M12 Connectors
- Space-Saving
M12 connectors are ideal for compact devices and tight installation spaces. Even so, they still deliver reliable performance.
- Stable Structure
The threaded locking structure helps resist vibration and shock. As a result, it ensures a secure connection in harsh industrial environments.
- Wide Options
We offer M12 connectors in A, B, D, X, S, T, K, L, and Y coding to match different signal, data, and power requirements.
- Waterproof Protection
Our M12 waterproof connectors feature IP67, IP68, and IP69K protection. Therefore, they suit outdoor, washdown, and demanding industrial applications.
- Flexible Customization
We support custom cable lengths, jacket materials, connector orientations, and assembly options to meet your project requirements.
- Easy Installation
Panel mount and field-wireable versions make installation faster and more convenient, thus simplifying system integration.
Popular M12 Connector Types by Pin Count
We offer a full range of M12 connectors in multiple pin configurations to meet different industrial application needs. Below are some of the most popular M12 connector pin counts.
M12 3 Pin Connector
M12 3 pin connectors are designed for basic signal transmission and low-power industrial uses. For example, you will find them in simple sensor systems, proximity switches, and compact automation equipment where a reliable, space-saving connection is critical.
M12 4 Pin Connector
Among all M12 connector types, the 4 pin version is one of the most widely used in industrial automation. Typically, it serves in sensors, actuators, I/O modules, and industrial control devices, delivering stable signal transmission and secure performance in demanding environments.
M12 5 Pin Connector
M12 5 pin connectors are used for signal transmission, fieldbus communication, and a range of automation applications. Compared with 4 pin versions, they provide one extra contact, so they suit more complex control functions and communication needs.
M12 8 Pin Connector
M12 8 pin connectors are used in industrial Ethernet, data transmission, and multi-signal applications. For instance, they work well for machine vision systems, network communication equipment, and advanced automation setups that require higher signal density and dependable data performance.
M12 12 Pin Connector
We designed M12 12 pin connectors for higher pin density. Consequently, they support multiple signal channels within a compact connector body. Thus, they are ideal for complex control systems, servo applications, robotics, and industrial equipment where installation space is limited.
M12 Connector Types by Coding
Our M12 connectors comply with the IEC 61076 series of international standards. This helps ensure standardized dimensions, reliable performance, and broad cross-brand compatibility in industrial automation systems. To meet diverse signal, data, fieldbus, and power requirements, we offer M12 connectors in a variety of encoding types.
| Coding Type | Main Function | Typical Pins / Poles | Typical Applications |
|---|---|---|---|
| M12 A-Coded Connector | Signal / DC power | 3, 4, 5, 8, 12 | Sensors, actuators, I/O modules, proximity switches |
| M12 B-Coded Connector | Fieldbus | 3, 4, 5 | Profibus and industrial communication networks |
| M12 D-Coded Connector | Industrial Ethernet | 4 | PROFINET, EtherCAT, 100 Mbps Ethernet |
| M12 X-Coded Connector | High-speed data | 8 | 10GbE, machine vision, IIoT data transmission |
| M12 L-Coded Connector | High-power DC | 5 | Power distribution, servo systems, distributed I/O |
| M12 S-Coded Connector | AC power | 2 or 3 | AC power distribution, drives, industrial equipment |
| M12 T-Coded Connector | DC power | 4 | DC power distribution, field devices |
| M12 K-Coded Connector | High-power AC | 5 | High-power AC systems, heavy-duty industrial equipment |
| M12 Y-Coded Connector | Hybrid power + data | 8 (4+4) | Combined power and signal transmission |
M12 Connector Styles & Configurations
We provide a wide range of M12 connector configurations to support different installation, wiring, and industrial automation requirements.
Gender Options
M12 Male Connector
M12 Female Connector
Orientation Options
M12 Straight Connector
M12 Right Angle Connector
Mounting & Installation Types
M12 Panel Mount Connector
M12 Bulkhead Connector
M12 Receptacle Connector
M12 PCB Connector
M12 Field-Wireable Connector
Cable & Assembly Types
M12 Cable Assembly
M12 Cordset Connector
M12 Overmolded Cable Connector
Advanced Connector Options
M12 Push-Pull Connector
M12 Shielded Connector
M12 Connector Specifications
| Category | Specification |
|---|---|
| Product Series | M Series Industrial Circular Connector |
| Product Type | M12 Connector |
| Standard | IEC 61076-2-101 |
| Number of Contacts | 2 to 17 pins, depending on coding and model |
| Coding Options | A / B / D / X / S / T / K / L / Y |
| Orientation | Straight / Right Angle (90°) |
| Gender | Male / Female |
| Rated Voltage | 30V / 60V / 125V / 250V, depending on coding and configuration |
| Current Rating | 1.5A to 16A, depending on coding and contact configuration |
| Contact Resistance | ≤ 5 mΩ, typical |
| Insulation Resistance | ≥ 100 MΩ, typical |
| Mating Cycles | > 100 cycles, depending on model |
| Locking System | Threaded coupling (IEC standard M12 interface) |
| Cable Length | 0.5 m to 20 m for cable assemblies, customizable |
| Termination Types | Screw / Crimp / Solder / Field-wireable / PCB / Pigtail |
| Housing Material | Brass (nickel-plated) / Stainless Steel / Engineering Plastic (PA66) |
| Contact Material | Gold-plated copper alloy |
| Operating Temperature | -40°C to +85°C standard, up to +125°C depending on model |
| Protection Rating | IP67 standard, IP68 / IP69K available on selected models |
| Certifications | CE / RoHS / UL optional depending on model |
M12 Connector Applications
Our M12 circular connectors serve a wide range of industries, including:
Industrial automation and control
Sensors and actuators
Industrial Ethernet and fieldbus systems
Servo motors and drives
Robotics
Machine vision
IIoT and smart manufacturing
Renewable energy systems
Railway and transportation
Heavy-duty machinery
Test and measurement equipment
Outdoor and waterproof equipment
M12 Connectors for Industrial Ethernet
For industrial networking applications, we offer D-coded and X-coded M12 connectors.
For instance, D-coded M12 connectors are commonly used for 100 Mbps industrial Ethernet applications such as PROFINET and EtherCAT.
In contrast, X-coded M12 connectors are designed for high-speed data transmission up to 10GbE and Cat6A-level Ethernet performance.
Therefore, if your project requires a compact and reliable network connection in harsh environments, M12 Ethernet connectors are an excellent solution.
M12 Connectors for Sensors and Actuators
A-coded M12 connectors are one of the most widely used options for sensor and actuator connections. They are compact, reliable, and suitable for signal transmission in industrial automation systems.
Typical applications include:
Proximity sensors
Limit switches
Control modules
I/O systems
Actuators
Small industrial devices
M12 Connectors for Power Applications
For higher current and power transmission needs, we offer M12 connectors in L-coded, S-coded, T-coded, K-coded, and Y-coded versions.
These connectors suit:
Servo motors
Power distribution
Industrial drives
AC/DC power transmission
Hybrid power and data connections
Customization Options
We support custom connector solutions to match your project needs, including:
Custom cable length
PVC or PUR jacket material
Straight or right-angle orientation
Shielded or unshielded cable
Male or female configuration
Different coding types
Panel mount, bulkhead, or field-wireable structures
OEM and ODM support
Why Choose Huada Group?
We are professional connector manufacturer with extensive experience in R&D, design, production, and testing. Moreover, we operate a modern factory and standardized production process. As a result, we supply reliable M12 connector solutions to industrial customers worldwide.
Our advantages include:
Stable manufacturing capability
Strict quality control
Custom design support
Fast project communication
Technical selection guidance
Drawing and sample support
Long-term OEM/ODM cooperation
In summary, whether you need standard M12 circular connectors or custom industrial connector solutions, we can support your project from development to mass production.
FAQ
1. What is the difference between M8 and M12 connectors?
M12 connectors are larger than M8 connectors. Therefore, they are typically used when you need more pin options, stronger locking, higher current, or more demanding Ethernet and power transmission.
2. Are M12 connectors waterproof?
Yes. Our M12 connectors feature IP67, IP68, or IP69K protection. Consequently, they are suitable for outdoor, wet, and harsh industrial environments.
3. What is the most common M12 connector type?
The most common types are A-coded M12 connectors for sensors and actuators, D-coded M12 connectors for industrial Ethernet, and X-coded M12 connectors for high-speed data transmission.
4. Can M12 connectors be panel-mounted?
Yes. We offer M12 panel mount and bulkhead versions for equipment enclosures, control panels, and industrial devices.
5. Do you offer custom M12 cable assemblies?
Yes. We provide custom M12 cable assemblies with different lengths, jacket materials, connector orientations, and coding options.
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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
Strict Production Process of Yafeite
