What this breaker does for your panel
The Siemens 3VA1116-6EF32-0KA0 is a 3-pole IEC frame 160 circuit breaker rated for a 160 A continuous current (In) with a thermal-magnetic TM240 trip unit. The overload protection is adjustable from 112 A to 160 A, and the short-circuit pickup (Ii) is set between 5 and 10 times In. That 70 kA breaking capacity at 415 V (class H) means it can safely interrupt a fault current up to that level without welding contacts or blowing apart — critical for high-fault panels where the upstream transformer is big. The built-in shunt trip (STL) accepts 220–250 V DC or 208–277 V AC, so you can remote-trip it from an E-stop or a safety relay without an extra interposing contactor.