MCCB for line protection — 160 A, 3-pole, TM240 release
The interrupting capacity hits 187 kA at 240 V, dropping to 121 kA at 415 V and 75.6 kA at 440 V — enough headroom for high-fault utility feeds or transformer secondaries.
Thermal derating and ambient limits
Above that, derate gradually: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. The 76.2 mm width (3 in) and 130 mm height (5.12 in) fit standard MCCB mounting footprints; depth is 70 mm (2.76 in). No trip indicator is fitted, so fault diagnosis relies on the panel's own indication or a downstream meter.
Shunt trip and auxiliary release options
The design is line protection (not motor protection), so it lacks an undervoltage release and ground-fault monitoring. No communication function is built in; it's a standalone breaker for the main feeder or sub-feed. Power loss at rated load is 38 W maximum — negligible for panel cooling calculations but worth noting for energy-aware designs.