The 220 kA breaking capacity at 240 V is the headline number, but the real-world fit depends on the voltage on your bus: at 415 V it's 154 kA, at 440 V it's 121 kA, and at 500 V or 690 V it's 17 kA. That means on a 480 V panel this breaker still holds a solid 121 kA SCCR — plenty for most industrial distribution boards.
Rated current holds at 50 A from 40 °C up to 50 °C, then derates gradually: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, 45 A at 70 °C. Maximum power loss is 14.6 W, which matters for thermal budgeting in a sealed enclosure. It's a straight line-protection MCCB: install it, feed a bus, and rely on the TM240 release to do its job without extras.
