Siemens 3TK2040-6AH2 Contactor

The contactor, also known as magnetic contactor, power contactor, or auxiliary contactor, with type number 3TK2040-6AH2 from Siemens is an electrical component for controlling and switching electrical loads in main and auxiliary circuits. It has the dimensions 7 x 7 x 6 cm and weighs 0.16 kg. Contactors serve for the safe and reliable switching of electrical consumers, especially motors, lighting systems, or heaters, in industrial plants and buildings. Typical applications include motor control in machinery and systems, switching of lighting installations in large buildings, and control of heating and air conditioning systems.