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. Three-pole construction, fitted with an ETU350 electronic overcurrent release (design of the overcurrent release), a shunt trip release (STL) for remote tripping, and two HQ auxiliary switches for status feedback to a PLC or annunciator panel. 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. No undervoltage release, no ground-fault monitoring, no communication module on this variant.
Panel Fit and Mounting
Dimensions are 105 mm wide, 181 mm high, 86 mm deep. The supplied basic switch is order code 3VA2063-6HN32-0AA0; the integrated auxiliary trip is 3VA9688-0BL30 — both are internal sub-assemblies, not field-replaceable without opening the sealed case.