Three poles suit three-phase systems up to 800 V rated insulation voltage. The breaking capacity is the key spec for fault coordination: 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V. The 63 A rating holds steady up to 50 °C and derates only slightly at higher ambients (62 A at 55 °C, 60 A at 65 °C, 58 A at 70 °C) (–), so it's stable in a warm enclosure.
No undervoltage release, no trip indicator, no communication function, and no ground-fault monitoring — this is a basic thermal-magnetic MCCB for straightforward overcurrent protection.