Interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, and 75.6 kA at 440 V, so it can break fault currents at those levels without welding contacts or cascading upstream. Thermal derating is published across the full operating range: 160 A continuous at 40 °C, 158 A at 55 °C, 150 A at 70 °C. Power loss at rated load is 38 W maximum — modest for a 4-pole 80 A frame, so it won't drive up internal enclosure temperature much.
Sizing and selectivity in the panel
The 3VA1116-5FD42-0AA0 measures 130 mm high, 101.6 mm wide, 70 mm deep — a standard 4-pole MCCB footprint that fits Siemens 3VA panelboards and most DIN-rail adapters. The 70 mm depth leaves clearance for rear-connection busbars or cable lugs without forcing a deeper enclosure. Line protection design means it's configured for feeder or main breaker duty, not motor protection (no adjustable overload class). The TM210 release is fixed thermal-magnetic; no electronic trip unit, no communication function, no undervoltage release — a straightforward, no-frills breaker for branch or main distribution.