What this 3VA1 breaker carries
The Siemens 3VA1132-6GF42-0AA0-ZD00 is a 4-pole molded case circuit breaker on the 3VA1 IEC frame 160, rated for breaking capacity class H with an Icu of 70kA at 415V. It uses a TM240 thermal-magnetic trip unit with ATAM (adjustable thermal, adjustable magnetic) settings: overload protection Ir adjustable from 22A to 32A, and short-circuit protection Ii adjustable from 5 to 10 times In. The N conductor is protected at 100% (full-rated neutral).
For selectivity studies, the TM240 trip unit's adjustable Ir (22–32A) and Ii (5–10 x In) let you fine-tune coordination with downstream branch breakers. The 100% N-conductor protection means the neutral pole trips at the same threshold as the phase poles — critical for 4-wire systems with high neutral harmonics. The frame 160 footprint fits standard 3VA1 panel cutouts and busbar connections.