Breaking capacity and approvals
Under UL 1077 and CSA C22.2 No. 235 it's rated 5 kA, so if you're specifying for a North American panel that follows UL 508A, that's the figure to coordinate with the upstream breaker.
The quick-assembly system means it clips in and out without tools — handy when you're reworking a crowded panel.
Environment and derating
Ambient range is -40 °C to 75 °C, but the current rating is temperature-dependent: at 40 °C it's 3.76 A, at 50 °C it's 3.5 A, at 55 °C it's 3.37 A.