You will find that the Square D brand is right there on the relay, a detail that matters.
SQUARE D A2.81 Thermal Unit, TripClass 20, MeltingAlloy 5B647
What stands out about this device is the Square D name, which you might already see in your panel.
What stands out about this Square D relay is its familiar look, which blends well with older panels.
You will find that the Square D name sits right on the housing, which feels solid and familiar.