Its job is to clear faults fast and stay selective with downstream devices. Rated continuous current Iu is 20 A at 40 °C ambient, and it holds that rating flat through 50 °C — at 55 °C it derates to 19.2 A, at 60 °C to 18.8 A, at 65 °C to 18.4 A, and at 70 °C to 18 A. Breaking capacity is the real selector here: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. The overcurrent release is a TM240 — a thermal-magnetic fixed-trip unit with an adjustable long-time delay (tr max 1 s). No electronic trip, no communication, no ground-fault or phase-failure detection. It is a straightforward thermal-magnetic breaker for standard distribution duty where you do not need metering or remote signaling.
Dimensions: width 76.2 mm, height 130 mm, depth 70 mm. Front protection is IP40, so it is splash-safe in a typical enclosure but not rated for washdown. Comes with 3 auxiliary switches HQ (high-quantity switching) built in — these give you remote status of the breaker position (ON/OFF/TRIPPED) without needing a separate accessory. No undervoltage release, no voltage trigger, no shunt trip on this variant; if you need those, you are looking at a different order code in the 3VA family.
If your panel was built around the 3VA1010-2ED32-0JA0 (a different frame size and release), the mounting and bus-bar spacing may differ — verify the foot-print before assuming a drop-in swap.