The Siemens 3VA1110-6EF32-0BF0 is a 3-pole IEC frame 160 molded case circuit breaker with a class H breaking capacity of 70 kA at 415 V. It's a current-production part, so no last-time-buy scramble yet.
That's the number that decides whether it holds on a high-capacity transformer secondary or a weak grid. The TM240 trip unit adjusts overload protection from 70 A to 100 A and short-circuit pickup from 5 to 10 times In.
The busbar connection system means you can feed it from a common bus without extra lugs — saves a few minutes per breaker in a multi-feed panel. Includes an undervoltage release (24 V DC) and one auxiliary switch changeover contact.