M8 series connectors, also known as sensor connectors, are widely used in photoelectric switches, proximity switches, sensors, and a variety of industrial wiring systems because of their waterproof, oil- and cold-resistant, as well as their stable performance and efficient and fast connection. The following is a detailed introduction to the full range of types of M8 series connectors:
Main Classification
M8 series connectors are mainly divided into two categories with cable and without cable:
M8 connectors with cable: this connector welding, pouring with cable, cable material is usually PUR/PVC (in contact with oil, cold, high temperature and other harsh environments, optional PUR outer being cable, its wear-resistant, oil-resistant, temperature range of -30 ° C ~ +85 ° C). The length of the cable can be customized according to the customer's needs, and the common lengths are 1m, 2m, 5m and 10m. M8 connectors with cables are available in 4-6 and 6-10 outlets.M8 connector without cable (also known as screw wired M8 connector): this connector is welded and injection molded, the plug shell material is PA, screw wired, and the outlet is 3.5~5mm.

Second, the specific types and features
According to the number of pins / number of cores: M8 connector pins / number of cores are 3 core / 4 core, 3-pin / 4-pin and so on.
According to the head type: M8 connector is divided into straight and elbow two kinds.
According to the wiring mode: M8 connectors have pin type and hole type, connected by screws.
By special function: including waterproof type, dustproof type, high temperature resistant type, etc. to meet the needs of applications in different environments. For example, waterproof M8 connectors usually have IP67 or higher protection level and can work stably in wet or underwater environment.
Common products and applications
M8 straight-through quick-connect couplings: used to realize fast and reliable connection, commonly used in signal transmission between sensors and controllers.
M8 Y-type adapter: It can divide a signal source into two or more signal outputs, and is suitable for occasions requiring signal branching.
M8 elbow connector: suitable for limited space or need to bend the connection occasions, such as equipment internal wiring.
M8 injection molding connectors: made by injection molding process, with compact structure, waterproof and dustproof features, commonly used in industrial automation equipment.
In summary, M8 series connectors are rich in type and diverse in function, and can be selected according to specific needs.