The 3VA1132-5EF36-0AA0: The headline number here is the interrupting capacity: 187 kA at 240 VAC, dropping to 121 kA at 415 V, 75.6 kA at 440 V, and still holding 17 kA at 500 V and 690 V. That's the kind of fault-clearing muscle that lets you use this MCCB as a main or branch device in high-fault panels without worrying about cascading failure upstream. Continuous current is 32 A from 40 °C through 50 °C ambient, then derates to 31 A at 55–60 °C and 30 A at 65–70 °C. The TM240 release is fixed — no field-swap trip units, so the rating is locked at order time. That's fine for a dedicated feeder or motor branch where the load won't change.
Footprint is 76.2 mm wide by 130 mm tall by 70 mm deep — a standard 3-pole MCCB envelope that drops into most DIN-rail or panel-mount assemblies without re-drilling. Maximum power loss is 10.6 W. In a dense panel with multiple breakers ganged together, that heat adds up — factor it into your thermal simulation if you're packing more than a handful of these in a sealed cabinet.
This is a current-lifecycle part from Siemens — no end-of-life notice, no last-time-buy clock ticking.