Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — so the SCCR headroom drops fast above 500 V; at 690 V the breaker is still rated but the available fault current must stay under 3.7 kA. It ships with a built-in communication function and includes a basic switch (order code 3VA21165JQ320AA0), plus two auxiliary switches and one trip-alarm switch (HQ) plus a shunt trip release (STL). That means the breaker can report its status to a PLC or BMS without an external interface module.
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a standard SENTRON 3VA footprint for 160 A frame.
