7/8" Circular Connector
The 7/8” circular connector features IP67, IP68 or IP69K ratings, offering waterproof, oil - resistant and low - temperature - resistant properties. It
operates stably and reliably, and supports threaded locking connection, ensuring excellent electrical performance even in vibrating environments.
It is widely used for power, signal and data transmission connections in industrial automation, sensor systems, robots, rail transit, new energy
equipment, and intelligent production lines in Industry 4.0.
Connoder can provide customers with diverse and innovative connection solutions, including standard and customized 7/8” circular connectors
and assembled cable components, facilitating efficient interconnection of devices.
7/8" Circular Connector Types
Explore our 7/8" circular connector range today to discover the best connectivity solution for your project! If you need more technical details or customization advice on the 7/8" circular connector, please feel free to contact us for more information and support.

7/8" 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.

7/8" 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
Connection methods: Screw - terminal connection

7/8" 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.
- Circular Connectors
- Type
- M5 Circular Connector
- M8 Circular Connector
- M9 Circular Connector
- M12Circular Connector
- M14Circular Connector
- M16Circular Connector
- 7/8 " Circular Connector
- Shape
- Straight
- Right Angle
- Gender
- Female
- Male
- Number of cores
- 2 Pin
- 3 Pin
- 4 Pin
- 5 Pin
- 6 Pin
- 7 Pin
- 8 Pin
- 9 Pin
- 12 Pin
- 14 Pin
- 16 Pin
- 17 Pin
- 19 Pin
- 24 Pin
- 1+PE
- 2+PE
- 3+PE
- 4+PE
- 5+PE
- 6+PE
- 3+5 Pin
- 3+7 Pin
- 2+FE
- 3+FE
- 4+FE
- Foolproof type
- A
- B
- C
- D
- K
- L
- M
- P
- S
- T
- X
- General
- Protection level
- IP66
- IP67
- IP68
- Wiring method
- Solder type
- PCB type
- Screw type
- SMD type
- Installation type
- Rear Fastened
- Front Fastened
- Square Flange Socket
- Sockets
- SMD Sockets
- Plastic Assembled
- Metal Assembled
- Curved Metal Assembly
- Ordinary Overmolded Type
- Overmolded Type
- Shielding type
- Shielded
- Unshielded
- Yes/No Optional
- Housing material
- Metal
- Plastic
- Metal + Plastic
- Rated voltage
- 30V
- 48V
- 50V
- 60V
- 63V
- 125V
- 250V
- 630V
- 300V
- 800V
- Rated current
- 0.5A
- 1A
- 1.5A
- 2A
- 3A
- 4A
- 5A
- 6A
- 7A
- 8A
- 9A
- 12A
- 13A
- 16A
- Insulation resistance
- 5mΩ
- 8mΩ
7/8" Circular Connector
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7/8" circular connector is a threaded connector with stable connection performance and reliable electrical connection.
7/8" circular connector is a threaded connector with stable connection performance and reliable electrical connection.
7/8" circular connector is a threaded connector with stable connection performance and reliable electrical connection.
7/8" circular connector is a threaded connector with stable connection performance and reliable electrical connection.
7/8" circular connector is a threaded connector with stable connection performance and reliable electrical connection.
7/8" circular connector is a threaded connector with stable connection performance and reliable electrical connection.
7/8" Circular Connector
Downloads on The Topic of Circular Connectors
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.

Industrial Automation
Connection of miniature sensors (proximity, photoelectric, capacitive, ultrasonic).
Signal transmission for micro-actuators.
Compact connections in robotic arms and precision automation equipment.

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.

Measurement & Testing Instruments
Connection of portable measuring devices (temperature, pressure, vibration).
Data acquisition systems requiring small and durable connectors.
Precision test and calibration tools.

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.

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
Housing material | Nickel-plated brass |
Sealing material | Epoxy resin/rubber |
Contact material | Phosphorus copper gold
plating/brass gold plating |
Insulation material | PA9T |
Modeling materials | TPU/PVC/PUR |
Contact resistance | ≤5mΩ |
Durability | ≥500 times |
Insulation resistor | 100 mΩ |
Applicable temperature | -40°C Tо +80°C |
Waterproof grade | IP67 / IP68 |
Pin Configuration and Electrical Parameters of 7/8" circular connector Connector

3 Core Male

4 Core Male

5 Core Male

6 Core Male

3 Core Female

4 Core Female

5 Core Female

6 Core Female
Different Opening Sizes of Circular Connectors

Opening Size for 7/8" Circular Connector with PG13.5 Threads

Opening Size for 78 Circular Connector with 7/8-16UHF Threads

Opening Size for 78 Circular Connector with M26x1.5 Threads
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:
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
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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