Four poles, line-protection design, with an ETU340 electronic overcurrent release. Breaking capacity hits 187 kA at 240 V, drops to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 4.5 kA at 690 V. That's a lot of fault-clearing headroom for a 160 A frame — sized for high-available-fault-current panels where a standard MCCB would weld closed. The ETU340 release is a programmable electronic trip unit — not a fixed thermal-magnetic. That means you can dial in the long-time, short-time, instantaneous, and ground-fault (if equipped — this variant is without ground-fault monitoring) thresholds to coordinate with downstream feeders. Power loss sits at 19.7 W maximum, which matters for enclosed panel heat buildup.
That's a standard 4-pole MCCB footprint — it'll drop into a SENTRON 3VA2 mounting base or direct-panel mount without surprises. If you need shunt trip or aux contacts, those are add-on accessories that clip onto the 3VA2 frame, not built in.
The 3VA2116-5JP32-0AE0 is a 3-pole variant of the same 160 A frame. The 3VA2216-5HK42-0AA0 adds a fourth pole — that's the difference. Same ETU340 release family, same breaking capacity curve, same dimensions except the width (4-pole is wider). If your panel was wired for a 3-pole and you need 4-pole, this won't drop in without a busbar rework. If you're replacing a 4-pole, this is the direct fit.