Siemens 3VA2063-6HN32-0HC0 — 63 A MCCB with ETU350, Shunt Trip, and 242 kA Breaking Capacity
The Siemens 3VA2063-6HN32-0HC0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 63 A at 40 °C through 50 °C, with a slight thermal derating curve above that — 60.6 A at 55 °C, 58.3 A at 60 °C, 55.9 A at 65 °C, and 53.6 A at 70 °C. Breaking capacity hits 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4 kA at 690 V — this is a high-interrupting frame for high-fault utility or transformer-fed distribution. Rated insulation voltage Ui is 800 V, operating range -25 °C to 70 °C, storage -40 °C to 80 °C. Maximum power loss 5.4 W.