The Siemens SENTRON 3VA2063-6HN32-0AE0 is a 3-pole molded case circuit breaker rated for 63 A continuous current at 40 °C through 70 °C with no derating across that span — the full 63 A holds at 70 °C ambient, which simplifies panel layout in hot enclosures or near other heat sources. Rated insulation voltage is 800 V, so the breaker is rated for use in 480 V and 600 V class systems with adequate margin — the 690 V breaking capacity drops to 3 kA, which is a design limit for solidly grounded high-voltage industrial systems.
Line protection design with four auxiliary switches
Active production — current lifecycle status
Maximum power loss is 5.4 W, which keeps heat dissipation low enough that no special ventilation is required in most panel layouts — thermal management is straightforward.