3M 7100180654 3M, Secure Grip Wire Connector SG-R POUCH, Red, 100 per pouch, 1000/Case

The SG-R red twist-on connector covers 18 AWG up to 8 AWG conductors, or 1 mm2 to 10 mm2 in metric terms. The description also calls out a 1.5 to 2.5 mm2 solid or stranded range as the core working range for this red cap.

No. The 3M Secure Grip SG-R is rated 600 volts, so it covers 120V, 208V, 277V and 480V branch circuit work within that rating, but nothing above 600V. For a fixture whip or ballast splice at 277V it is within rating.

The SG-R red connector is rated to 105 degrees C (221 degrees F) maximum operating temperature, which covers the elevated ambient inside recessed fixture canopies, attic boxes and mechanical rooms. Above that it is out of rating.

The SG-R is a twist-on wire nut: you twist it over the stripped conductors and its internal spring bites down to hold the bundle, so one cap covers a wide conductor range (18 AWG to 8 AWG here) and mixed solid and stranded combinations. Push-in and lever connectors are faster and give a fixed port count, but each model is limited to a narrower set of wire sizes and a set number of conductors. For MRO and remodel work where the splice count varies box to box, the twist-on is the flexible choice.

The SG-R red connectors are packed 100 per pouch, with 1000 per case, ordered under 3M part number 7100180654. That pouch packaging is convenient for stocking a service van or a per-job kit rather than opening a full case on site.

Yes. The SG-R accepts solid or stranded conductors within its range, and the spring is built to grip both, so a stranded fixture lead to solid building wire splice is a normal use for this cap.

Red is the size code on the 3M Secure Grip line, and on the SG-R it marks the larger-capacity cap in the family, taking conductors from 18 AWG up to 8 AWG. If your crew already color-codes splices by wire count, the red cap is the one at the top of this range.

Country of origin on the SG-R is China. Institutional and government buyers working to a domestic sourcing requirement should factor that in before standardizing on this part.