The 240 W maximum power loss is the heat the breaker dissipates at full load; panel ventilation or derating may be needed if ambient exceeds 40 °C — note the thermal derating curve from 55 °C (780 A) to 70 °C (722 A) (–).
Integration and deployment context
This MCCB is designed for line protection and mounts in a fixed or plug-in base within a panel. The 210 mm width and 120 mm depth fit standard Siemens 3VA switchboard or distribution panel cutouts.
Selectivity and coordination notes
The interrupting ratings across voltages — 187 kA at 240 V, 121 kA at 415 V, 121 kA at 440 V, 75.6 kA at 500 V, 52.5 kA at 690 V — give the engineer the SCCR headroom for selective coordination with downstream breakers. No communication function — this is a stand-alone thermal-magnetic or electronic-trip MCCB without integrated fieldbus.