The Siemens 3VA2510-5HN32-0AD0 is a SENTRON 3VA2 molded case circuit breaker in the line protection version, rated 1000 A continuous current (Iu) across 40 °C to 55 °C ambient, derating to 955 A at 60 °C and 815 A at 70 °C. Breaking capacity runs 187 kA at 240 V, 121 kA at 415 V, and 53 kA at 690 V — figures that cover most industrial fault-current scenarios without needing a current-limiting upstream device. The ETU350 electronic trip unit gives adjustable long-time pickup (Ir) from 0.5 to 1.0 × Iu, short-time delay (tsd) from 0.04 to 0.4 s, and instantaneous pickup (Ii) up to 10 000 A. That range suits feeder protection where coordination with downstream breakers matters.
Dimensions are 210 mm wide, 320 mm high, 120 mm deep. Front protection is IP40.