What it is and what the ratings mean
The 3VA1132-4EF42-0AA0: Rated 32 A continuous at 40 °C ambient, and it holds that rating all the way up to 50 °C before you see any derating — at 55 °C it's still 31 A, at 70 °C it's 30 A. That's a tight thermal curve; you don't lose headroom until the panel is genuinely hot. Breaking capacity is 121 kA at 240 V AC, dropping to 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 121 kA figure at 240 V is the headline — it's a high-interrupting rating for strong-fault panels in North American 240 V distribution. At 690 V the 11.9 kA still clears most industrial fault levels, but you'd want to verify coordination with upstream gear for high-capacity transformer feeds.
Panel fit and mounting
Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — that's a standard 4-pole MCCB envelope. The front face carries IP40 protection, so it's fine in a closed panel but not washdown-rated. No undervoltage release or shunt trip fitted on this variant; it's a straight thermal-magnetic line-protection breaker.