Product overview and key ratings
The Siemens 3VA1063-4ED46-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a 63 A rated current at 40 °C through all four poles, with no derating needed up to 50 °C — at 55 °C it still holds 62 A, and at 70 °C it delivers 58 A. The TM210 thermal-magnetic trip unit handles overload and short-circuit protection without an electronic trip or communication module, keeping the design simple and field-reliable.
Breaking capacity and application context
Breaking capacity is rated per the evidence at 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. These figures define the maximum fault current the breaker can safely interrupt at each voltage level — critical for sizing upstream protection and ensuring selective coordination in a panel. The 4-pole configuration suits three-phase systems with a fully switched neutral, common in North American and IEC distribution.
Physical fit and mounting
Dimensions are 130 mm height, 101.6 mm width, and 70 mm depth. The width of 101.6 mm (4 inches) is the standard footprint for a 4-pole MCCB in the SENTRON 3VA frame, so it fits existing panel cutouts and busbar layouts designed for that pole count. The IP40 front protection means the breaker face is protected against solid objects larger than 1 mm, but not sealed against moisture — suitable for indoor panel environments.
Compliance and documentation
The SENTRON 3VA series carries full IEC/EN 60947-2 certification for molded case circuit breakers. The rated insulation voltage is 800 V, and the operating temperature range spans -25 °C to +70 °C, with storage from -40 °C to +80 °C. Maximum power loss is 17.3 W. The breaker does not include an undervoltage release, trip indicator, or ground-fault monitoring — these are external accessories if required.