The Siemens 3VA1063-2ED36-0CA0 is a 3-pole IEC frame 100 circuit breaker with a breaking capacity class B rating of Icu=16kA at 415 V AC. It's a line-protection device with a TM210 thermal-magnetic trip unit, fixed at In=63 A for overload and Ii=10 x In for short-circuit. The integrated undervoltage release (UVR) operates on 120-127 V AC 50/60 Hz, and termination is via clamp connections.
What the ratings mean for fit
The 16 kA Icu at 415 V is the maximum short-circuit current the breaker can safely interrupt once. That's class B in the IEC 60947-2 framework — adequate for most secondary distribution panels where the prospective fault current stays under that threshold. The fixed Ii=10 x In means the magnetic trip fires at 630 A; no adjustment range, so verify your cable and load's inrush won't nuisance-trip. The UVR drops the breaker when control voltage falls below dropout — typical for emergency-stop chains or undervoltage protection on motor feeders.
Panel integration notes
Mounts on standard DIN rail inside an enclosure. The clamp terminals accept copper conductors typical for 63 A branch circuits — no lug kit needed for most panel builds. The UVR coil draws from a separate 120-127 V AC control circuit; factor that into your control transformer sizing.