The 3VA1110-6EE42-0AA0-ZD00 is a Siemens 3VA1 IEC frame 160 circuit breaker in breaking capacity class H, rated Icu=70kA at 415 VAC. This is the 4-pole, line-protection variant with a TM220 thermal-magnetic trip unit, ATFM, and an In=100 A continuous rating. Overload protection adjusts Ir from 70 A to 100 A; short-circuit protection is fixed at Ii=10 × In. The N conductor is unprotected — suitable for 3-phase + PEN or delta configurations where the neutral does not require overcurrent protection.
The 100 A frame with Ir adjustable down to 70 A covers motor branch circuits, feeder protection, or distribution sub-mains where the load current falls in that band. The fixed Ii=10 × In (1000 A magnetic pickup) is typical for cable/line protection; if you need a lower magnetic threshold for motor starting inrush (usually 5–8× In), the TM220 curve may trip on start unless the Ir setting is high enough to avoid nuisance trips. The 4-pole form factor with unprotected neutral means the fourth pole is a switched neutral without a trip element — confirm your system grounding before wiring.