What is a commonly used term for a solderless connector?

The term "wire nut" refers to a type of solderless connector commonly used in electrical work. Wire nuts are designed to twist onto the ends of stripped electrical wires to create a secure and reliable connection without the need for soldering. They are often utilized for connecting multiple wires together, ensuring both efficiency and safety in electrical installations.

Other options represent different types of components. A terminal block is used for organizing and connecting multiple wires in a neat manner, while a connector jack usually denotes a receptacle for connecting cables or devices. An insulation sleeve, on the other hand, is a cover used to protect electrical connections from exposure or short circuits. Each of these serves distinct purposes within electrical systems, but the wire nut is specifically recognized for its role as a solderless connector.