It is a 3-pole unit rated for 250 A continuous current, with a maximum breaking capacity of 2,500 A and a minimum of 375 A. The real SCCR story is voltage-dependent: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V. Thermal derating is published across the operating range: it holds 250 A flat from 40 °C through 50 °C, then steps down to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C.
Built-in auxiliary and undervoltage release
The two aux switches give you status feedback (open/closed) for PLC inputs or remote indication without adding external contact blocks. It's a straightforward line-protection MCCB with undervoltage release — sized for the panel builder who needs the UVR and aux contacts out of the box, not as field-add kits.
The 86 mm depth includes the case body; allow extra behind the panel for the rear terminals and arc-chamber venting. That's the heat the breaker dumps into the enclosure at full load — factor it into your panel thermal calculation, especially if the MCCB is enclosed in a small non-ventilated box.