The TM240 thermal-magnetic release handles overloads and short-circuits up to 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — numbers that tell you this breaker is sized for high-fault panels where the available fault current is serious.
The 50 A rating holds flat from 40 °C 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 UVR drops the breaker if control voltage falls below a set threshold — useful for safety circuits where a loss of control power should open the main feeder. The trip alarm switch gives a separate signal when the breaker trips on fault, not just when manually opened. No communication function, no phase failure detection, no ground fault monitoring built in. This is a straight line-protection MCCB — you add external modules for those functions.