The Siemens SENTRON 3VA2116-0KQ46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 160 A continuous current, with a massive 440 kA breaking capacity at 415 V and 187 kA at 690 V. Designed for line protection, it carries an ETU860 electronic trip unit with adjustable N-conductor protection (OFF, 20% to 100%), ground-fault monitoring via summation current on L+N, and a communication function for integration into a power-monitoring scheme.
This breaker delivers its full 160 A rating from 40 °C all the way up to 70 °C ambient — no derating curve to chase. That makes it a clean drop into a hot switchboard or a crowded enclosure where adjacent breakers raise the internal temperature. The IP40 front protection keeps dust and accidental contact out of the breaker face; the body dimensions (86 mm deep, 140 mm wide, 181 mm high) fit standard MCCB mounting footprints in a panel or switchgear lineup.