Its ETU320 electronic trip unit provides an adjustable thermal-magnetic response, with a trip range from 95 A minimum to 756 A maximum — meaning you can dial in the overload and short-circuit protection to match the downstream load without swapping the breaker. The interrupting capacity scales with system voltage: 121 kA at 240 V, 75.6 kA at 415 V and 440 V, 52.5 kA at 500 V, and 3 kA at 690 V.
Ratings that matter for fit
Front face carries IP40 protection — suitable for general indoor panel use where tools or fingers won't contact live parts. Not rated for washdown environments.
Dimensions are 181 mm high, 140 mm wide, 86 mm deep — a standard 4-pole MCCB footprint for Siemens SENTRON 3VA2 frames. Verify the mounting hole pattern matches your existing backplate or DIN-rail adapter before ordering.