Control cable with numbered cores, PVC insulation and sheath. Flexible control and power cables, designed to work in power control and protection devices and for control circuits, as well as to supply electricity to low-power receivers, mobile and portable devices. They are suitable for permanent installation and for mobile connections in industrial devices, technological lines, machines operating in dry and damp rooms. The high flexibility of the BIT 500 cables facilitates their laying and the insulation materials used allow for easy and quick connection and ensure high durability of the connection.