Its defining feature is the poke-in termination — strip the wire, push it in, and the contact spring holds it without a crimp tool. That makes it a fast fit for harness builds where you want to skip the crimp press and still get a reliable connection on 16-22 AWG wire.
What the dual current rating means for your wire choice
The 2834054-3 carries a split current rating: 3A and 8A. That's not a range you pick from — it's wire-gauge-dependent. At the smaller end of the wire range (22 AWG), the contact resistance and temperature rise limit you to 3A per circuit. Step up to 16 AWG, and the same contact can handle 8A. The housing and contact are the same; the wire cross-section decides the thermal headroom. If your BOM calls for 5A on 20 AWG, you're inside the envelope — but push 8A on 22 AWG and you'll exceed the temperature rise the housing is rated for.
Mating cycles and contact finish — a semi-permanent install
Rated for 10 mating cycles with tin-plated copper alloy contacts. That's a low cycle count — this isn't a connector you unplug every service interval. The tin finish is cost-effective and works well for a one-time or occasional mate, but it will wear and oxidize if cycled repeatedly.