The interrupting capacity scales with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — which means this breaker can handle high-fault utility feeds at lower voltages while still providing adequate interruption on 690 V industrial networks. The TM240 thermal-magnetic release gives a fixed thermal pickup at 50 A and a magnetic trip threshold of 240 A (4.8× Iu), so it clears moderate overloads thermally and short-circuit faults magnetically without needing an external trip unit. The 50 A rating holds flat from 40 °C up to 50 °C, then derates to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. The trip indicator is present, so you get local visual confirmation of a fault trip.
Integration notes — panel fit and wiring
The breaker occupies a 76.2 mm width (3-pole), 130 mm height, and 70 mm depth — a standard SENTRON 3VA footprint that fits existing DIN-rail or mounting-plate layouts without re-drilling. The undervoltage release coil must be wired to a separate control voltage; verify polarity and suppression per the device manual.