The Siemens 3VA1120-6ED32-0AA0-ZD00 is a 3-pole IEC frame 160 molded-case circuit breaker with a breaking capacity class H rating of 70kA at 415V. It carries TM210 line protection: thermal-magnetic trip with a fixed Ir of 20A (overload) and a fixed short-circuit pickup Ii of 16 x In (320A instantaneous). The 16x In magnetic pickup suits motor starting inrush or transformer energization without nuisance tripping.
The 3VA1 series accepts plug-in accessories (auxiliary contacts, shunt trips, undervoltage releases) that snap into the accessory slots without removing the breaker from the bus.