What the ratings mean for fit
The Siemens SENTRON 3VA2216-8KQ32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current with no derating across the entire -40 °C to 70 °C operating range — that is the headline number for a BOM line. The 800 V rated insulation voltage (Ui) and the short-circuit breaking capacities — 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, 53 kA at 690 V — define where this breaker can be installed without cascading upstream. The ETU860 electronic trip unit provides adjustable time-delay settings (tr from 0.5 to 25 s, tsd up to 0.5 s) plus ground-fault monitoring via summation current formation, which means it can be coordinated downstream for selective tripping in a distribution panel.
Integration and deployment context
At 86 mm deep, 105 mm wide, and 181 mm tall, this MCCB fits standard Siemens SENTRON 3VA panel footprints and busbar systems. The IP40 front protection means it is suited for enclosed distribution boards where the front face is behind a panel door — not for open washdown environments. The communication function and other measurement function (both confirmed on this variant) allow integration into a higher-level monitoring system, so a controls integrator can pull trip and load data without separate metering.