Siemens 3VA2163-8HK32-0AA0 — 63 A MCCB with ETU340 Electronic Trip
The Siemens SENTRON 3VA2163-8HK32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current at 40 °C, with an ETU340 electronic overcurrent release. The interrupting capacity reaches 440 kA at 240 V, 330 kA at 415 V, and 220 kA at 500 V — figures that place it in the high-breaking-capacity class for industrial mains protection. At 690 V it still clears 52.5 kA, so it handles the full fault-current range of a 480 V or 600 V service entrance without cascading upstream. The ETU340 trip unit provides adjustable thermal-magnetic or electronic protection curves depending on configuration.
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep — a standard SENTRON 3VA frame size that fits existing panel cutouts and busbar systems for 3-pole MCCBs. The 86 mm depth leaves clearance for rear-connected busbars or cable lugs in a typical 400 mm deep enclosure. Power loss is 3.1 W maximum at rated current, which is negligible for thermal derating in a sealed panel.