Types of connections

Electrical · Branch Circuit Wiring (Distribution Wiring) · printed page 100 (PDF page 101)

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Book index entries

Connections – Types of Electrical Electric Connections – Types

Text in the illustration

screw terminals
push-in terminals (also called bayonet or dagger connections)
wire nuts (also called solderless, twist-on, MARR or MARETTE connectors)
note:
must be inside junction box
spliced, soldered and wrapped with electrical tape - commonly found with knob and tube wiring
not in junction boxes (older work only)

Generated explanation

The illustration presents four types of electrical conductor connections. Two duplex receptacles demonstrate a hooked conductor for a screw terminal and a straight conductor for a push-in terminal. A twist-on wire connector joins two insulated conductors, with a note stating that this connection must be inside a junction box. A separate detail shows a twisted conductor splice described as soldered and wrapped with electrical tape, commonly found with knob and tube wiring. The accompanying note identifies splices outside junction boxes as an older-work-only condition.

Components

duplex receptacles screw terminals push-in terminals wire nut insulated conductors conductor splice

Materials

metal conductors wire insulation electrical tape solder