3pólové

3pólové, often written as 3-pole or three-pole, refers to an electrical component or configuration that utilizes three distinct conductive paths or connections. In many contexts, this designation is associated with electrical plugs, sockets, and circuit breakers. For instance, a 3-pole plug typically has a live, a neutral, and an earth (ground) connection, providing power and safety to an appliance. Similarly, a 3-pole socket outlet will have corresponding terminals to accept such a plug.

In the realm of circuit protection, a 3-pole circuit breaker is designed to interrupt all three live conductors simultaneously in the event of an overcurrent or fault. This is particularly important in three-phase electrical systems, which commonly power industrial machinery and larger commercial equipment. These systems, by nature, consist of three alternating current phases, and a 3-pole device ensures that all phases are disconnected when necessary, preventing damage and ensuring safety. The term can also be found in other electrical and electronic applications, generally indicating a device with three active electrical points of connection or interaction.