Rated 20 A continuously at 40 °C (derates to 19 A at 60 °C and above), it carries a rated insulation voltage of 800 V and can interrupt up to 121 kA at 240 V AC, stepping down to 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V or 690 V.
If your panel runs hotter, the derating curve is explicit: 19 A from 60 °C to 70 °C. That matters when you're coordinating with upstream protection or sizing for a known load. The 3-pole configuration and line-protection design mean it trips on phase faults and overloads but has no built-in ground-fault monitoring.
Panel integration and accessories
The auxiliary switches provide status feedback (open/closed) to a PLC or indicator lamp. Dimensions are 76.2 mm wide, 130 mm high, 70 mm deep — a standard SENTRON 3VA footprint that fits existing panel cutouts and busbar systems for the series. No communication function on this variant; it's a standalone thermal-magnetic breaker, not a communicable power-management unit.