Line protection MCCB with TM220 release
The interrupting capacity at 240 V reaches 187 kA, at 415 V it is 121 kA, at 440 V it is 75.6 kA, and at 690 V it is 17 kA — these figures define the maximum fault current the breaker can safely clear at each voltage level, which is the primary selection criterion for panel coordination studies. The TM220 release is adjustable; the thermal time delay tr max is set at 1 s.
Above that, derate linearly: 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C.