It is rated 16 A continuous and holds that rating from 40 °C up to 55 °C ambient; at 60 °C it derates to 15 A, and at 70 °C it still holds 15 A, so it stays on-spec across a warm enclosure without a big drop. Interrupting capacity is the headline number for this class: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V.
The shunt trip lets a remote signal (fire alarm, emergency-stop circuit, PLC output) trip the breaker without a manual action — common in machine-tool and process-line panels. The two auxiliary switches give status feedback (open/closed) back to the control system; one can signal the open state, the other the closed state, or both can be wired for independent monitoring. The basic switch supplied inside is order code 3VA10962ED320AA0 — that is the internal mechanism that carries the contacts and the trip unit. If you ever need to replace just the internal switch (for example after a fault event that damaged the mechanism but left the enclosure and accessories intact), that is the part number to reference. It is a straightforward line-protection breaker with a shunt trip — no Modbus, no remote metering. Keep that in mind if the BOM expects those features.
Physical fit and panel space
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint for the SENTRON 3VA platform. The 76.2 mm width (3 in) is the pole pitch — three poles at roughly 25.4 mm each, standard for 16 A frame breakers.