60A - 120A
125A - 200A
250A - 350A
400A - 480A
Today, with the advancement of industrial automation and the trend toward smaller equipment, we often face the challenge of achieving reliable connections within limited spaces while withstanding extreme environments. RENHOTEC introduces the M8 series connectors to help customers overcome this challenge. This threaded locking circular connector, with a diameter of approximately 8mm, features a compact design, industrial-grade protection, and stable performance, making it an ideal choice for a wide range of applications.
What Are M8 Series Connectors?
The M8 circular connector is an electrical connector used to connect cables, wires, and equipment in industrial and automation applications. The male thread diameter is approximately 8mm. It features a lightweight, slim, and compact design with robust protection and stability, making it ideal for industrial environments with limited space.
5 Key Benefits of the M8 Connector
- Quick Plug-and-Play for Efficient Maintenance
M8 connectors can be easily inserted and removed without professional tools, simplifying installation and replacement. For production line equipment that requires frequent maintenance, this design significantly shortens downtime for repairs and improves operational efficiency in industrial settings. And all our M8 series connectors are compliant with IEC 61076 standards, ensuring global interoperability.
- Reliable Anti-vibration Locking Screw Design
The anti-vibration locking screw design provides a secure mechanical connection that effectively resists vibration and accidental pulls, ensuring the connection remains intact even under demanding conditions.
- Industrial-Grade Protection for Harsh Environments
Our M8 connectors are rigorously tested to meet IP67/IP68 standards. With an extended operating temperature range of -40°C to +85°C, our connectors guarantee performance stability from freezing cold storage facilities to high-temperature machinery. They can effectively resist dust, oil, and water mist, maintaining stable connections and reducing downtime risks even in humid production lines, dusty warehouses, or environments with significant temperature swings.
- 3/4/5/6/8 Pin Configurations to Meet Diverse Application
Our M8 cable assemblies offer 3-8 pin specifications, covering basic, multi-channel, and complex signal transmission scenarios. Interface types include straight and angled designs, with angled connectors particularly suited for wall-mounted or corner installations. This reduces cable strain and extends service life.
- Multiple Codings to Ensure Right Connection
To prevent mismating, M8 connectors are available with different coding keys, each designed for specific signal types:
A-Code: Typically used for sensors, actuators (digital signals), and general I/O.
B-Code: Often used for fieldbus communications (e.g., PROFIBUS).
D-Code: Designed specifically for Industrial Ethernet, supporting high-speed data transmission.
Primary Applications
Industrial Automation: Connecting PLCs, sensors, photoelectric switches, and small actuators, especially in space-limited control cabinets. Our connectors help maximize cabinet space utilization while ensuring reliable signal and power delivery.
Aerospace: Utilized in avionics systems and onboard sensor networks where lightweight, compact, and vibration-resistant connections are critical. We offer solutions that meet the stringent weight and reliability requirements of aerospace applications.
Test and Measurement Equipment: Providing reliable interfaces for data acquisition modules and portable test devices that require robust performance in various environments. Ensure data accuracy with connectors built for stability and durability.
Communication Equipment: Used in base station remote radio heads (RRUs) and network switches for compact, sealed external or internal connections. Maintain network integrity with connectors designed to withstand outdoor conditions.
Medical Equipment: Ideal for internal module connections in portable medical instruments (e.g., small monitors), balancing compactness with signal transmission stability. Our products support the development of safe and reliable medical devices.
How to Select the Right M8 Connector?
When selecting an M8 connector, several fundamental factors must be carefully considered to ensure it meets your requirements.
Application and Environment
Start by defining theconnector’spurpose(e.g.,connecting sensors,actuatorsor transmitting data)and assessthe operating environment. Key factors to consider include temperature extremes, humidity, vibration, and exposure to challenges like dust,oil or chemicals.
Pin Count
Select the number of pins based on your transmission needs: 3-pin or 4-pin versions suit most sensors and actuators, while 5-pin, 6-pin, or 8-pin configurations are designed for more complex signals or bus communication.
Cable Type and Electrical Parameters
Choose a cable that meets your device’s voltage and current requirements. Opt for shielded cables in environments with significant electromagnetic interference, and select a thicker wire gauge when transmitting higher currents.
Housing Material and IP Rating
Housing Material: Standard nickel-plated brass is suitable for general industrial environments. For highly corrosive conditions (e.g., food & beverage, chemical industries), stainless steel is the recommended choice.
IP Rating: An IP67 rating protects against everyday dust and water splashes. If the equipment must withstand prolonged immersion or high-pressure washdowns, the higher IP68 rating offers superior protection.
Related Products
M8 Overmolded Cable Assemblies
In summary, the M8 series connector is the ideal choice for powerful and reliable connections in limited spaces. It combines robust construction, superior environmental protection, and easy installation, meeting the high demands of modern industry for equipment connections.
If you’re seeking a reliable connection solution, the M8 series is worth considering. You can download our M8 series product catalog to quickly find the connector best suited for your application. Feel free to contact our team of technical experts for personalized product selection advice.