3M 7010401052 Performance Plus Wire Connectors T/R+, 750 Pack

The Performance Plus T/R+ wire connector covers 22 AWG up to 8 AWG (0.34 mm2 to 10 metric). That range is wide enough that one connector covers what normally takes two different traditional connectors, which is the point of the dual color coding. The flexible spring expands to reach the top of the range and lets the connector be reused.

The limit to check is insulation outside diameter: the T/R+ accepts conductors with insulation up to 0.145 in (3.7 mm) OD. Most building wire in the 22 to 8 AWG range falls under that, but if you are combining several larger conductors with heavy jackets, measure the jacket before you commit to a box full.

They carry a 600 volt maximum recommended rating, so 120V, 277V and 480V branch circuits in a commercial building are all inside the rating. The connectors are UL Listed.

Maximum operating temperature is 105 C (221 F), which covers the 90 C conductor insulation used in most fixture whips and the elevated temperatures inside a luminaire canopy. Beyond 105 C you need a high-temperature ceramic connector instead.

Use a fitting, not a wire connector. The 3M Performance Plus T/R+ is a twist-on splice connector for conductors 22 AWG through 8 AWG. For conduit entry, the RACO 4734 is a SWIVEL-LOK 1 inch Type B liquidtight multi-position connector in nylon, supplied 100 to a pack, which terminates the raceway itself at the enclosure. Many jobs need both: the 4734 to land the conduit and the T/R+ connectors to splice the conductors inside.

The body is red, and the connector is dual color coded so that one part covers the wire combinations that would otherwise take two separately colored connectors. Practically, that means an electrician stocking a van or a facility stockroom can carry one bin instead of two for the bulk of 22 to 8 AWG splices.

7010401052 is the 1000 piece bulk pack of the Performance Plus T/R+ twist-on connector. That is the quantity to buy for a tenant fit-out, a lighting retrofit across a portfolio, or an MRO stockroom, rather than a jar for a single service call.

Yes, those are different parts. The 3M T/R+ is a twist-on splicing connector for conductors only. For terminating liquidtight flex into a box, a fitting such as the RACO 4734 SWIVEL-LOK 1 in. Type B liquidtight multi-position connector is the right item, and for a grounding electrode intersystem bond you want something like the Burndy BDTIBB BONDIT wall mount intersystem bonding connector, which handles #14 to #2 AWG. They do not substitute for each other.

No. The 3M Performance Plus T/R+ is a twist-on connector that splices conductors from 22 AWG up to 8 AWG inside a box or fixture canopy, rated 600 volts and 105 degrees C. The Burndy BDTIBB is a BONDIT wall mount intersystem bonding connector in stainless steel, covering #14 to #2 AWG, used at the service to bond communications grounds to the electrode system. One makes a splice, the other is a mounted bonding point, so they are not interchangeable on a job.

No. The Burndy UCCOVER1BOX25 is a Tapit polyethylene tap connector cover, an insulating cover that goes over a separate tap connector body. The 3M Performance Plus T/R+ is a self-contained twist-on wire connector with an internal flexible spring that provides both the electrical connection and the insulation in one plastic shell, rated 600 volts for conductors 22 AWG to 8 AWG with insulation up to 0.145 in outside diameter. Ordering the cover alone will not give you a completed splice.

Yes. The spring inside the T/R+ is flexible and expands, which is what allows the connector to be backed off and reused rather than cut off and thrown away. The spring is described as having a strong bite for a secure connection when it is re-torqued down.

Country of origin is the United States, which matters if you are working a job with domestic sourcing language in the specification or a government or institutional procurement requirement.