What this breaker brings to the panel
The 3VA1116-4EF42-0AA0-ZD00 is a 4-pole IEC frame 160 circuit breaker with a 36 kA breaking capacity at 415 V (class S).
Overload and short-circuit protection setup
The TM240 thermal-magnetic trip unit gives you an adjustable overload pickup (Ir) from 112 A to 160 A, so you can dial in the exact motor or transformer FLA without swapping the breaker body. Short-circuit magnetic pickup (Ii) is fixed at 5 to 10 times In — 800 to 1600 A — which suits cable and bus protection where you want to ride through motor inrush but still trip fast on a hard fault.