junction box

noun

, Electricity.

1. an enclosure that houses electric wires or cables that are joined together and protects the connections.

junction box

noun

1. an earthed enclosure within which wires or cables can be safely connected

junction box

/ jŭngk′shən /

1. An enclosure within which electric circuits, such as the electrical wiring for different sections of a building, are connected to other circuits, such as outside power sources. Junction boxes are very common in telecommunications circuitry and are used to protect the connections and provide easy access to them.

Word History and Origins

Origin of junction box¹

First recorded in 1895–1900

Example Sentences

He didn’t see any sparks but saw what appeared to be a loose connection at the junction box where the line met the pole, he told investigators.

From Seattle Times

Following the recall for 2021 and 2022 model year vehicles, Ford issued a technical service bulletin to replace the High Voltage Battery Junction Box on recalled vehicles.

From Reuters

A time where it is alleged cassette recorders were used to secretly record phone calls, taped to the inside of a junction box.

From BBC

Mr Burrows, she was told, employed a British Telecom engineer to put a phone tap on her landline and hide a cassette recorder in the junction box in the street.

From BBC

Using a tab system, the lights — which are just three-quarters of an inch thick — snap directly into the ceiling to connect to the junction box.

From The Verge