The Lumberg 26145 RSFM 4/20/0,5 M is an electrical cable device with a socket, M12 connector, four male pins, A code-DeviceNet/CANopen profile, and a 0.5m cables length. It is used for connecting electronic components, such as sensors, actuators, and interfaces to a network. It can be used in industry, automation, and other embedded systems, as well as in applications requiring durable connections. Its A code-DeviceNet/CANopen profile allows for increased flexibility and compatibility. The device is made of rugged PVC material and comes with mounting hardware.