At 415/440 V it still holds 187 kA, dropping to 121 kA at 500 V and 3.7 kA at 690 V. This variant includes a shunt trip release (STL) — the auxiliary release that lets a remote signal or safety circuit trip the breaker without a manual handle pull. It's a straightforward line-protection MCCB with a shunt trip for emergency-off or interlock schemes.
Standard DIN-rail or screw-mount installation in a distribution panel; the 3-pole footprint matches the 3VA2 frame common across the SENTRON line.
What the interrupting ratings mean for coordination
At 690 V the interrupting capacity drops to 3.7 kA, so it's not a candidate for 690 V distribution unless the fault level is known to be under that threshold. The 63 A continuous rating and the interrupting curve together define its place in a selective coordination study: upstream breakers must have a higher withstand, downstream devices must clear before this one's band.