The M12 PushPull connector from Harting enables a higher density of plug connections on one device. It can be assembled by hand without tools and therefore speeds up assembly in confined spaces. The threadless latching solution is plugged in quickly and securely and signals correct assembly with a clearly audible click. The non-slip retaining ring means that the connector can be reliably gripped and released even under difficult conditions. This fastening solution ensures the robustness and vibration resistance that is essential in railroad technology under difficult operating conditions.