Its interrupting ratings climb to 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the 187 kA figure at 240 V means it can clear a fault at that level without upstream coordination issues, which matters for high-capacity transformer-fed panels. The adjustable trip class (10A, 10/10E, 20/20E, 30/30E) lets you match the overload curve to the motor start profile — a 10E setting for quick-start pumps, a 30E for high-inertia loads like centrifuges.
The 86 mm depth, 105 mm width, and 181 mm height (–) fit the standard 3VA panel footprint; if you're swapping in a panel originally built around the 5SQ2370-2YA05 series, check the mounting hole pattern and bus-bar spacing — the 3VA uses a different lug arrangement and may require adapter brackets.
Rated insulation voltage of 800 V covers 480Y/277 V and 600 V systems with headroom; the 1.6 W maximum power loss is low enough that adjacent breakers in a multi-unit lineup won't need forced-air cooling.