SCCR and thermal derating — the real numbers that decide fit
Its breaking capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. Thermal derating is flat from 40 °C to 50 °C at the full 20 A, then drops to 19.2 A at 55 °C, 18.8 A at 60 °C, 18.4 A at 65 °C, and 18 A at 70 °C.
Auxiliary contacts and trip indication
That gives you both a status signal for the breaker position and a separate alarm for a fault trip — useful for remote monitoring or PLC input without adding external relays. The trip indicator is present on the front, so a walk-by visual check confirms the breaker state. If you need those, this isn't the order code — the 3VA family has options for electronic releases and communication modules, but this one is a straight line-protection thermal-magnetic breaker.
Physical fit — panel integration note
That 76.2 mm width is a standard 3-pole MCCB footprint — 3 modules at 25.4 mm each — so it fits a standard DIN-rail or panel-mount cutout without surprises.