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2. Hubbell Incorporated - Wikipedia

   en.wikipedia.org/wiki/Hubbell_Incorporated

   Hubbell Incorporated was founded as a proprietorship in 1888 by Harvey Hubbell II. Born in Connecticut in 1857, he was a U.S. inventor, entrepreneur, and industrialist. Hubbell's best-known inventions are the U.S. electrical plug [3] and the pull-chain light socket. [4]

3. Distribution board - Wikipedia

   en.wikipedia.org/wiki/Distribution_board

   A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

4. Punch-down block - Wikipedia

   en.wikipedia.org/wiki/Punch-down_block

   A punch-down block (also punchdown block, punch block, punchblock, quick-connect block and other variations) is a type of electrical connection often used in telephony. It is named because the solid copper wires are "punched down" into short open-ended slots which are a type of insulation-displacement connector .

5. IDC (electrical connector) - Wikipedia

   en.wikipedia.org/wiki/IDC_(electrical_connector)

   Punch-down blocks are intended to connect individual conductors punched down into each position in the block with a special punch-down tool. Punch-down terminations are also generally seen in telephone and network connectors, in patch panels and distribution frames, and in telephone equipment such as PBXs.

6. Busbar - Wikipedia

   en.wikipedia.org/wiki/Busbar

   In electric power distribution, a busbar (also bus bar) is a metallic strip or bar, typically housed inside switchgear, panel boards, and busway enclosures for local high current power distribution. They are also used to connect high voltage equipment at electrical switchyards, and low-voltage equipment in battery banks. They are generally ...

7. NEMA connector - Wikipedia

   en.wikipedia.org/wiki/NEMA_connector

   These connectors are common in live event power distribution. Many event production companies use power distributors with camlock connectors for feeder cable, and 12 or more L21-30 connectors which can each be broken out to three individual 120 V circuits via the use of a stringer box. [citation needed]