Siemens 3VA1063-4ED32-0KC0 — 63 A SENTRON MCCB for Line Protection
The Siemens 3VA1063-4ED32-0KC0 is a 3-pole molded case circuit breaker from the SENTRON family, designed for line protection in distribution panels and industrial switchgear. Rated 63 A continuously at 40 °C ambient, with thermal derating to 58 A at 70 °C — the full-load current holds across typical panel ambient ranges, so the 63 A frame is the right pick for a 63 A feeder without oversizing. Breaking capacity reaches 121 kA at 240 VAC, 75.6 kA at 415 VAC, and 11.9 kA at 690 VAC — these numbers define the available fault current the breaker can safely interrupt at each system voltage, which is the primary selectivity and SCCR check for the distribution board. Rated insulation voltage is 800 V, giving headroom for 690 V line-to-line systems without additional derating of the dielectric withstand.
Mounting and Integration
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — fits standard MCCB panel cutouts and busbar centers for a 3-pole 63 A frame. Supplied with a shunt trip (STL) release and provisions for two HQ auxiliary switches, enabling remote tripping and status feedback for PLC or SCADA inputs. No undervoltage release, no communication module, no ground-fault monitoring on this variant — specify a different order code if those functions are required.