Do It Best 554618 Assorted Wire Cap Connector 9 Piece

Product Description

The DO IT BEST 554618 is an assorted wire cap connector set designed for making quick, secure electrical connections on residential and light commercial wiring. The connectors feature a tough thermoplastic shell that resists environmental stress and provides high dielectric insulation. A deep skirt design keeps bare wire fully covered, reducing the risk of flash-over and accidental contact. This 9-piece assortment includes four connector sizes and is rated for use on circuits up to 300 volts and 600 volts depending on connector type. Electricians and experienced DIYers install these during wiring, fixture replacement, junction box work, and similar tasks.

This assorted set covers a range of wire-joining applications in branch-circuit wiring, outlet and switch installations, and fixture connections. The set contains 2 gray No. 19-001 connectors, 2 orange No. 19-003 connectors, 3 yellow No. 19-004 connectors, and 2 red No. 19-006 connectors, allowing a single card to handle multiple wire gauge combinations on the same job. Suitable for residential panels, junction boxes, and general electrical rough-in and finish work.

Key Features

• Thermoplastic shell resists environmental extremes for durable, long-term connections
• Deep skirt design prevents bare wire exposure and reduces flash-over risk
• High dielectric insulation rated at 300V and 600V
• Complies with Federal Specification W-S-610d
• UL 486C listed and CSA certified
• Assorted 9-piece set covers four common connector sizes in one package

Compatibility

Designed for use in standard residential and light commercial branch-circuit wiring applications where twist-on wire cap connectors are specified. Compatible with copper conductors within the gauge range supported by each included connector size.

Installation Notes

Installation should be performed by a licensed electrician or qualified tradesperson in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize the circuit at the breaker and confirm the absence of voltage with a meter before making or breaking any connections. Strip conductors to the appropriate length for each connector size, twist wires together, and seat the cap firmly by hand until snug. Do not over-tighten or use pliers directly on the connector shell, as this may crack the thermoplastic housing.