The Siemens 3VA1132-3EE42-0AA0-ZD00 is a 4-pole IEC frame 160 MCCB from the 3VA1 series, configured as a line-protection device with a TM220 thermal-magnetic trip unit. Rated In=32A, with overload protection adjustable Ir=22A...32A and a fixed short-circuit pickup Ii=10 x In (320 A). The breaking capacity hits Icu=25kA at 415 V — class N in the 3VA1 lineup, meaning it handles moderate fault levels typical of industrial distribution panels without cascading upstream.
In a panel with a transformer secondary capable of 30 kA, this breaker would need an upstream current-limiting device or a higher-rated frame — class N is not for high-fault utility entrances. The TM220 trip unit gives a fixed thermal curve; if the load profile demands a wider adjustment range or electronic selectivity, a 3VA1 with an ETU (electronic trip unit) would be the correct choice. The unprotected neutral means the N pole passes through without overcurrent protection — common on 3-phase 4-wire systems where the neutral is bonded to ground at the service entrance and not expected to carry fault current.