Kontaktoreid

Kontaktoreid is a term that refers to the plural form of "kontaktor" in Estonian. A kontaktor, or contactor, is an electrically controlled switch used for switching a power circuit. It is similar to a relay but is designed to handle higher current loads. Contactors are typically used to control electric motors, lighting, heating, capacitor banks, and other electrical loads.

The primary components of a contactor include an electromagnet (coil), a set of contacts, and a frame. When current flows through the coil, it generates a magnetic field that pulls an armature, causing the contacts to close or open. This action either connects or disconnects the power to the load. Contactors are rated for specific voltages and currents, and their design ensures safe and reliable operation under demanding conditions. They are essential components in industrial automation, power distribution, and various electrical control systems, providing a means to switch high-power circuits remotely and safely. They differ from a motor starter in that a starter typically combines a contactor with overload protection.