Integrator note — 3VA2163-5KP32-0KC0
Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415/440 V, 79 kA at 500 V, and 4.25 kA at 690 V — figures that govern the available fault current the breaker can safely clear without upstream coordination issues. The breaker carries two auxiliary switches (HQ configuration) and an integrated auxiliary trip (3VA9688-0BL33).
Selectivity and SCCR headroom
At 415/440 V the 121 kA rating still covers most industrial service-entrance conditions. The ETU850 release supports adjustable pickup and delay settings, which is what makes selectivity curves achievable without oversizing upstream gear.
Panel integration — dimensions and mounting
Power loss is 4 W maximum.
Thermal derating and continuous current
Above 55 °C it derates linearly: 60.6375 A at 55 °C, 58.275 A at 60 °C, 55.9125 A at 65 °C, and 53.55 A at 70 °C. For a panel running warm — say 60 °C internal ambient — the effective continuous current is about 58 A, not 63 A. Factor that into your load schedule if the breaker shares an enclosure with heat-producing devices.