Its 187 kA interrupting capacity at 240 V gives it the headroom to serve as a main breaker in high-fault installations, while the 121 kA at 415 V and 75.6 kA at 500 V keep it viable for 400 V class industrial feeds.
At 690 V the rating drops to 7.5 kA, so this is not a 690 V main breaker for high-fault systems; it belongs on 240 V or 400 V distribution where the available fault current stays within its curve.
Thermal derating and continuous duty
Above that it derates linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Maximum power loss is 96 W — that heat stays inside the enclosure, so factor it into the panel thermal budget.
Integrated shunt trip release
That means a remote trip signal (from an E-stop, fire alarm, or PLC digital output) can open the breaker directly. The auxiliary switch design is listed as 'Without', so there is no separate NO/NC contact for status feedback unless you add one externally.
The breaker measures 138 mm wide, 248 mm high, and 110 mm deep. It mounts into a standard SENTRON 3VA2340 frame footprint — the same cutout and bus-bar spacing as the base 3VA2340-5HN32-0AA0. The 3-pole block occupies roughly 5.4 inches of DIN-rail width; plan the enclosure depth to clear the 110 mm projection plus wiring space behind the line and load lugs.