The breaking capacity scales with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 3.4 kA at 690 V. At the most common industrial distribution voltages (400–480 V), this breaker handles fault currents well above typical available fault levels in most panelboards — you are unlikely to need a current-limiting upstream device for coordination.
Thermal performance and panel integration
Above 55 °C it steps down: 60.6 A at 55 °C, 58.3 A at 60 °C, 55.9 A at 65 °C, and 53.6 A at 70 °C. If your panel runs hot (poor airflow, high density of breakers), factor the 55 °C curve into your load schedule.
The 3VA2063-5HL32-0CA0 is a line-protection variant with an undervoltage release. The base switch without the UVR is order code 3VA2063-5HL32-0AA0; the integrated auxiliary trip used in this assembly is 3VA9608-0BB24. If you already have a panel designed around the base switch, the UVR-equipped version adds one additional control wire (the undervoltage coil) — no rewiring of the main power path needed.