The Siemens 3VA1063-4ED36-0KH0 is a 3-pole IEC molded-case circuit breaker in the 3VA1 frame 100 series, rated 63 A continuous (In) with fixed TM210 thermal-magnetic overload protection (Ir = 63 A) and fixed short-circuit pickup at Ii = 10 × In. Its interrupting rating hits 36 kA at 415 V (breaking capacity class S), which means it can clear a bolted fault up to that level without upstream fuses needing to open — a solid fit for a 400 V distribution panel downstream of a transformer or main breaker.
Integrated accessories and wiring
Factory-fitted with a shunt trip (STL) rated 220–250 V DC / 208–277 V AC, two auxiliary switches (HQ), and one trip alarm switch (HQ). The shunt trip lets a remote safety relay or PLC drop the breaker under emergency conditions; the alarm switch signals a trip event back to the control system. All connections are clamp-type — spring-cage terminals that accept solid or ferruled stranded copper without lugging, which speeds panel wiring and reduces torque-check time.