Wire harness including a connector holder

A wire harness comprising:

• a trunk line,
• a first electric wire which is provided with a first connector at a tip end of the first electric wire and is branched from the trunk line,
• a second electric wire which is provided with a second connector to be connected to the first connector and is connected to the first electric wire via the first connector and the second connector,
• a connector holder having a holding space for holding the first connector, wherein
• the first connector includes a first rib-shaped engagement protrusion and a first slit-shaped engagement groove,
• the connector holder includes one of a second rib-shaped engagement protrusion and a second slit-shaped engagement groove that directly engages one of the first slit-shaped engagement groove and the first rib-shaped engagement protrusion of the first connector, respectively,
• the holder includes a first side surface and a second side surface that abuts the first side surface at an angle and extends away from the first side surface, and the first side surface has a first opening and the second side surface has a second opening, and the first and second openings are in communication with each other in a circumferential direction, and
• the first electric wire is routed to pass through the first opening and the second electric wire is routed to pass through the second opening.