3M Performance Plus Wire Connector +POUCH, 100 per pouch

Four dual color codes are offered: T/Y, R/Y, T/R, and O/B. The dual coding is the point of the design, one connector covers the wire range of two traditional single-color connectors in most applications, so you carry fewer part numbers on the truck. Order by code: T/Y is MPN 7100127163, R/Y is 7100127164, T/R is 7100127165, and O/B is 7100127195.

Yes, 22 AWG is the smallest conductor these are rated for (.34 mm2 metric), so fine control and thermostat conductors are within range. The spring is designed to expand for a wider wire range, which is what lets one connector cover small and larger combinations.

600 V is the maximum recommended voltage rating, which covers standard 120/208/240/277/480 V building branch circuits and line-voltage lighting. They are UL Listed and CSA, and the housing is flame retardant plastic.

The limit is insulation outside diameter, not just copper size: 0.145 in (3.7 mm) maximum per conductor. Measure the jacket OD on heavier-insulated or dual-rated building wire before you commit to a splice count, since several oversize-insulation conductors will fill the shell before the conductor rating does.

They are rated to 105 C (221 F) maximum operating temperature, which covers attic plenums, fixture whips, and most luminaire junction boxes. For anything above that you need a high-temperature splice such as a porcelain or ceramic wire nut.

Yes. The flexible spring expands and is built for reuse, so pulling a splice apart during troubleshooting or a device swap does not automatically scrap the connector. Inspect the shell for cracks and confirm a strong bite on re-install.

A twist-on like the Performance Plus is the right call where you want one connector to cover a wide mix of conductor sizes in the same box, including 22 AWG control wire up through building wire, and where you may need to open and remake the splice. Push-in and lever connectors fix you to specific conductor sizes per port. Both styles are used at 600 V; the twist-on's advantage here is range and reuse from a single part number.

They come 100 per pouch, 1000 per case. The pouch packaging is what makes them practical for an installer pocket or a service bag rather than pulling from a bulk jar, and it suits MRO stockrooms that issue by the pouch.

Manufacturing origin is the United States, and the connectors are RoHS 2011/65/EU compliant without exemption. That combination matters for government and institutional procurement with domestic-sourcing or substance-restriction language in the spec.