The interrupting capacity drops as voltage rises: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V. Temperature derating is real on this frame. At 55 °C it derates to 375 A, at 60 °C to 350 A, at 65 °C to 325 A, and at 70 °C to 300 A. Plan your load accordingly. That's the kind of selectivity you need to coordinate downstream breakers without nuisance trips. The communication function means it can talk to a BMS or SCADA system for remote monitoring and trip-event logging — useful for a facility manager who wants to know why a breaker tripped without walking the panel. Power loss is listed at 96 W maximum. That's the heat the breaker dumps into the enclosure at full rated current. When you're sizing ventilation or air conditioning for a panel with multiple breakers, that number matters — 96 W per breaker adds up fast.
Dimensions: 248 mm high, 138 mm wide, 110 mm deep. 138 mm width is the 3-pole frame width. Auxiliary contacts are two HQ (high-qualified) switches, rated for signaling and control circuits. The shunt trip (STL) release is built in — that's the coil that lets a remote signal or emergency-stop button trip the breaker electrically. No undervoltage release is fitted, so if you need that function you'll add it as a separate module.