TL;DR
A wire connector is the small insulated device that joins two or more electrical conductors inside a box, most familiarly the twist-on wire nut whose internal tapered spring bites the stripped ends into a gas-tight bundle. Color codes indicate the combinations of wire sizes each is listed for under UL 486C, and lever-lock and push-in styles now compete where stranded-to-solid joints frustrate twisting.
What it means
A wire connector is the small insulated device that joins two or more electrical conductors inside a box, most familiarly the twist-on wire nut whose internal tapered spring bites the stripped ends into a gas-tight bundle. Color codes indicate the combinations of wire sizes each is listed for under UL 486C, and lever-lock and push-in styles now compete where stranded-to-solid joints frustrate twisting. Every splice they make must live inside an accessible junction box, and loose connectors behind dimming or flickering fixtures are among the most common faults electricians find.
Where it sits in the glossary
Wire connector is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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