The Siemens SENTRON 3VA1163-5EF32-0BA0 is a 3-pole molded case circuit breaker rated 63 A at 40 °C, with a breaking capacity of 187 kA at 240 V. The TM240 overcurrent release handles thermal-magnetic trip characteristics.
This MCCB delivers 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. That spread covers most industrial distribution panels where high fault current is a concern at lower voltages.
Thermal derating curve
Rated current holds at 63 A from 40 °C through 50 °C, then drops to 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C.
No trip indicator or voltage trigger on this variant.
Power loss and environmentals
Maximum power loss is 19.8 W — useful for thermal budget in a sealed enclosure.