manufacturer’s website says rated 30a, instantaneous 60a. Almost looks like copy/paste error from XT60, but the XT60 page says 20a/40a. Amass used to have an English version, but it seems to be gone.
I found these guys have most of Amass’s products, with detailed specs (and decent prices on some stuff).
They show 90a/120a.
Maybe something happened, and Amass derated their connectors. Certifications maybe?
The mating cycles is also dramatically different, 100 times at Amass, 1000 times at smc…
These guys did a pretty good test, but it’s a single instance test… They did similar tests for a few connectors.