The Siemens 3VA1032-3ED32-0HH0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for a continuous current Iu of 32 A at 40 °C, with a TM210 thermal-magnetic overcurrent release. That 32 A holds flat from 40 °C up through 50 °C — you only start losing headroom above 55 °C, where it derates to 30.72 A, then 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. If your panel ambient runs near 65 °C, you spec this for a 29 A load, not a full 32 A. Breaking capacity is where this breaker earns its keep in a distribution board: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. That 52.5 kA at 415 V puts it comfortably above most 25 kA or 36 kA panelboard requirements — useful when the upstream transformer is big and the fault current is high.
Envelope is 76.2 mm wide, 130 mm tall, 70 mm deep — that 76.2 mm is three 25.4 mm DIN-module widths on the rail, so it eats three slots. That saves a separate side-mount module and the extra DIN space it would take. A shunt trip release (STL) is fitted — part number 3VA9688-0BL30 — so you can remote-trip this breaker via a control signal. If you need those, you're looking at a different suffix.
The integrated shunt trip order code (3VA9688-0BL30) is a separate line item if you ever need a spare release module.