Breaking capacity is 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. At 415 V that is well above typical utility fault levels for a 32 A feeder — you have headroom for selectivity with downstream MCBs without needing a current-limiting upstream breaker. Current rating holds flat at 32 A up to 50 °C ambient; above that it derates linearly to 28.8 A at 70 °C.
That 76.2 mm width is a standard 3-pole MCCB footprint — it fits the same panel cutout and DIN-rail adapter as other 3VA frame sizes, so swapping from a lower-rated 3VA1010 does not require re-drilling the gland plate. Comes with 4 auxiliary switches (HQ type) factory-installed. If you need remote trip or ground-fault detection, you add the accessory later through the side slots. Storage range is -40 to 80 °C; operating ambient -25 to 70 °C. Latching endurance is 15,000 operations, which for a distribution breaker is more than adequate for infrequent switching.