ABB S800-AUX Circuit Breaker

ABB S800-AUX is a combined auxiliary contact accessory for ABB's S800 high‑performance miniature circuit breakers, delivering two Form C contacts (2 Form C) to signal the breaker’s operating state. It mounts on the left side of the S800 breaker and supports up to two assemblies, enabling multiple signaling points. The auxiliary contacts are rated for up to 6 A and up to 690 V (AC), making them suitable for signaling circuits, alarms, and interlock logic in control panels. Available variants include S800-AUX (auxiliary contact with bell alarm) and S800-AUX/ALT (auxiliary/signal contact), which provide concurrent signaling of the breaker status through separate circuits.