What this 3VA1 breaker carries
The Siemens 3VA1110-6MH36-0DC0 is a 3-pole IEC frame 160 circuit breaker with a breaking capacity class H rating — Icu=70kA at 415 V AC. That 70 kA interrupting rating means it can safely clear a fault up to that level on a 415 V supply without welding contacts or cascading failure upstream, which matters for high-fault-capacity industrial panels fed by large transformers. The thermal-magnetic release is a TM120M set at In=100 A. Note the description: this variant is for starter protection (motor branch circuit) with short-circuit protection only — there is no built-in overload protection, so you pair it with a separate overload relay upstream of the motor. The magnetic trip is adjustable Ii=5…15 x In, giving you a 500–1500 A instantaneous pickup range to ride through motor inrush without nuisance tripping. It ships with an undervoltage release (UVR) coil rated 208–230 V AC 50/60 Hz, plus two HQ auxiliary switches for status feedback to a PLC or panel lamp. Terminations are clamp-type (tension-spring) — no screw torque to check, just strip to the right length and push in. That saves time on a panel build or a field swap.