SENTRON 3VA2 MCCB — 63 A, ETU350, 242 kA IC
The Siemens 3VA2063-6HN32-0AF0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 63 A continuous current at 40 °C, with a 242 kA interrupting capacity at 240 V AC — enough headroom for high-fault utility feeds or transformer secondaries without cascading upstream breakers. Rated insulation voltage is 800 V, so it handles 480/600 V class systems comfortably; the 187 kA at 415 V and 121 kA at 500 V tell you it holds its breaking performance across common industrial voltages.
Dimensions & Panel Fit
The 3VA2063-6HN32-0AF0 measures 86 mm deep, 105 mm wide, and 181 mm tall — a standard 3-pole MCCB footprint that fits most DIN-rail or screw-mounted panel layouts without re-drilling.
Auxiliary & Signaling
Trip indicator is present — a visible flag on the breaker face confirms a trip event even if the handle resets.
Thermal Derating & Environment
Rated 63 A from 40 °C up to 50 °C without derating; above that it drops linearly to 53.55 A at 70 °C — plan your enclosure ventilation if the breaker sits near heat sources or in a sealed cabinet.