How do I select a circuit breaker for PAV series?

Take the breaker capacity (current size) margin by approx. 20 % against the rated input current of PAV series.
Check whether the inrush current (for approx. 20 ms) specified for PAV series doesn’t exceed the breaker trip point.
For the details of the rated input current of PAV series, read the user’s manual – chapter of Specifications.