Liitäntäruuvit

Liitäntäruuvit, often translated as terminal screws or connection screws, are fasteners designed specifically for electrical connections. Their primary purpose is to securely hold electrical conductors, such as wires, in place to ensure a stable and reliable electrical circuit. They are commonly found in electrical outlets, switches, circuit breakers, and various electrical components.

The design of a liitäntäruuvi typically includes a threaded shaft and a head. The head often has a slot or a Phillips drive for tightening with a screwdriver. Some liitäntäruuvit also feature a washer, either integrated or separate, to distribute the pressure evenly across the conductor and prevent damage to the wire. The threading on the shaft is optimized for gripping various types of electrical conductors, from solid copper wires to stranded wires.

When installing a liitäntäruuvi, the end of the electrical wire is usually inserted under a pressure plate or into a terminal hole. The screw is then tightened, compressing the wire against the terminal surface. This creates a low-resistance connection that is crucial for efficient electrical flow and to prevent overheating. Different types of liitäntäruuvit exist, varying in size, thread pitch, and head type, to accommodate different wire gauges and electrical applications. Safety is a key consideration in their design, as faulty connections can lead to electrical hazards.