What the ratings mean for fit
The 3VA1463-7EF32-0AH0 is a 3-pole IEC frame 630 circuit breaker from the Siemens 3VA1 series, rated with a breaking capacity class C and an Icu of 110 kA at 415 V. That 110 kA interrupting rating means it can safely clear a fault up to that level without welding its contacts or rupturing the arc chamber — critical for high-fault panels where the available short-circuit current is substantial. The TM240 thermal-magnetic trip unit provides overload protection adjustable from 440 A to 630 A (Ir) and short-circuit protection (Ii) set at 4 to 8 times the rated In of 630 A. This breaker is designed for line protection in IEC distribution boards and motor control centers where the 630 A frame size matches large feeders or main incomers. The included 2 auxiliary changeover switches and 1 trip alarm switch give remote status and fault indication without needing separate contact blocks.
Lifecycle and sourcing reality
For a BOM line or a line-down replacement, the key fit check is the trip unit setting range (440–630 A) and the Icu requirement at your system voltage. This breaker is quoted to order against an RFQ; availability and current pricing are confirmed at quote time.