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M9 Circular Connector

Your Trusted Source for High-Quality Circular Electrical Connectors

Welcome To The World of M9 Circular Connectors

1. Compact design with a moderate outer diameter, saving space and suitable for narrow installation environments.
2. Sturdy and reliable, with a threaded locking mechanism, resistant to vibration and shock, ensuring a stable connection.
3. With an IP67 protection rating, dustproof and waterproof, suitable for harsh environments.
4. Provides options of connectors or finished products with cables to meet diverse installation requirements.
5. Unshielded, shielded and grounded types are available to meet different EMC requirements.
6. Standardized interface design, enabling worry-free interconnection with mainstream M9 connectors.
7. Complies with the IEC61076 standard, offering a complete range of types for selection according to requirements.
M8 Circular Connectors
The M9 circular connector features IP67 - rated waterproof, oil - resistant, and low - temperature - resistant properties. It operates stably and
reliably, supports threaded - locking connections, ensuring excellent electrical performance even in vibrating environments.
It is widely applied in automotive sensors, photoelectric switches, proximity switches, industrial automation equipment, robot sensors, as well as
the integrated wire harnesses and signal connections in Industry 4.0 intelligent systems.
Connoder can provide customers with diverse and innovative connection solutions, including standard and customized M9 connectors and
assembled cable components, facilitating the efficient interconnection of devices.

M9 Circular Connector Types

Explore our M9 circular connector range today to discover the best connectivity solution for your project! If you need more technical details or customization advice on the M9 circular connector, please feel free to contact us for more information and support.
M9 Panel Mount Connector

M9 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

M9 Assembled Connector

M9 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

M9 Pre-Molded Cable Assemb

M9 Pre-Molded Cable Assemb

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

M9 Circular Connector

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M9 Circular Connector

Downloads on The Topic of Circular Connectors

Connoder European - standard M - series Circular Connectors --- M9 Series

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

Standard
IEC 61076 - 2 - 101 / DIN EN 61076 - 2 - 105
Connection Types
Welding, PCB Dip - soldering, Pre - molded Cable (Straight/Right - angled)
Number of Contacts
3 Core, 4 Core, 5 Core, 6 Core, 7 Core, 8 Core
Contact Material
Copper alloy, gold - plated
Rated Voltage
125 VAC/DC
Rated Current
1 A、3A、4A
Protection Level
IP67 (when properly connected)
Operating Temperature
- 40°C to +85°C
Installation Methods
Rear/Front of panel, Vertical/Inclined, Angle - adjustable
Housing Material
Brass (nickel - plated), Engineering plastic (PA9T)
Cable Sheath
PVC, PUR (optional)

Pin Configuration and Electrical Parameters of M9 Circular Connectors

Pins 2 3 4 5
Male M9-male-2Pin M9-male-3Pin M9-male-4Pin M9-male-5Pin
6 7 8
M9-male-6Pin M9-male-7Pin M9-male-8Pin
Pins 2 3 4 5
Femle M9-Female-2Pin M9-Female-3Pin M9-Female-4Pin M9-Female-5Pin
6 7 8
M9-Female-6Pin M9-Female-7Pin M9-Female-8Pin

M9 PCB Pins Arrangement

3 Core Male
4 Core Male
3 Core Female
4 Core Female
6 Core Male
7 Core Male
8 Core Male

3 Core Female
4 Core Female
4 Core Female
5 Core Female
6 Core Male
7 Core Male
8 Core Male

Different Installation Methods of Circular Connectors

M9 Circular Connector Front Fastened
M9 Circular Connector Front Fastened
M9 Circular Connector Rear Fastened
M9 Circular Connector Rear Fastened

Different Opening Sizes of Circular Connectors

Opening Size for M9 Circular Connector with M12×0.5 Threads



Different Wiring Methods for M9 Circular Connectors

M9 Circular Connector Solder Type
M9 Circular Connector Solder Type
M9 Circular Connector PCB Type
M9 Circular Connector PCB Type

Wiring Definition of M9 Circular Connectors

Pins 2 Pin Core Color Pins 6 Pin Core Color
1 BN 2 Pin Core Color 1 BN 4 Pin Core Color
2 BU 2 Pin Core Color 2 WH 4 Pin Core Color
3 BU 4 Pin Core Color
Pins 3 Pin Core Color 4 BK 4 Pin Core Color
1 BN 3 Pin Core Color 5 GY 6 Pin Core Color
2 BU 4 Pin Core Color 6 PK 12
3 BK 4 Pin Core Color
Pins 7 Pin Core Color
Pins 4 Pin Core Color 1 WH 4 Pin Core Color
1 BN 3 Pin Core Color 2 BN 3 Pin Core Color
2 WH 4 Pin Core Color 3 GN 17 Pin Core Color
3 BU 4 Pin Core Color 4 YE 4 Pin Core Color
4 BK 4 Pin Core Color 5 GY 6 Pin Core Color
- 6 PK 12
Pins 5 Pin Core Color 7 BU 4 Pin Core Color
1 BN 3 Pin Core Color
2 WH 4 Pin Core Color Pins 8 Pin Core Color
3 BU 4 Pin Core Color 1 WH 4 Pin Core Color
4 BK 4 Pin Core Color 2 BN 3 Pin Core Color
5 GY 6 Pin Core Color 3 GN 17 Pin Core Color
4 YE 4 Pin Core Color
5 GY 6 Pin Core Color
6 PK 12
7 BU 4 Pin Core Color
8 RD 6 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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