Its TM240 thermal-magnetic release handles overload and short-circuit response without external control power.
Interrupting capacity — selectivity headroom
For 500 V and 690 V systems the rating drops to 17 kA, which still covers most industrial distribution transformers up to that voltage class.
Thermal derating — what the 63 A rating actually means
At 55 °C it derates to 62 A, at 65 °C to 60 A, and at 70 °C to 58 A.
Panel fit — dimensions and mounting
The breaker measures 130 mm high, 76.2 mm wide, 70 mm deep — a 3-pole MCCB footprint that drops into standard SENTRON mounting plates or DIN-rail adapters.