DIN 43650 connector, also known as solenoid connector or plug connector, is a standardized electrical connector mainly used to connect solenoid valves, pressure switches and industrial sensors. Its most common application is in hydraulic and pneumatic systems, where it is used to provide power connection or signal transmission to the equipment.
DIN 43650 connectors have three main forms:
- Form A: The largest size, commonly used for larger solenoid valves.
- Form B: Medium size, usually used for medium-sized equipment.
- Form C: The smallest size, suitable for smaller equipment.
These connectors usually have a higher protection level (such as IP65 or IP67), which can prevent dust and moisture from entering, and are suitable for the harsh conditions of industrial environments.

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