MCCB for line protection — 200 A, 4-pole, TM240 release
Short-circuit breaking capacity runs 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V — these figures are the SCCR values the breaker can safely interrupt at each voltage level, so selectivity studies should use the voltage closest to your system's fault point.
Rated 200 A continuous at 40 °C ambient, the breaker holds 200 A through 50 °C, then derates to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. If the panel ambient stays under 50 °C, no derating is needed — above that, the TM240 release's thermal element will trip earlier, so size your load to the derated curve. Dimensions: 140 mm wide, 158 mm high, 70 mm deep — the 70 mm depth is shallow enough for standard 600 mm deep enclosures with room for gland plates and wiring gutters.
