The 3-pole body carries an ETU550 electronic trip unit, configurable for line protection (overload and short-circuit) with adjustable N-conductor protection (OFF, 20% to 160%). Breaking capacity is 440 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 73.5 kA at 690 V. That SCCR headroom covers high-fault utility feeds and large transformer secondaries without cascading upstream. Max power loss is 144 W.
Panel integration — physical fit
Dimensions are 320 mm height, 210 mm width, 120 mm depth. The 210 mm width is wider than a standard 3-pole MCCB in smaller frame sizes — verify the panel cutout or mounting plate accommodates this before wiring. The IP40 front protection means it is suited for indoor switchgear enclosures; no washdown rating.