The Schneider Electric A9A19801 is an Acti9 iOF auxiliary contact — a 1 C/O (changeover) signal contact that mounts alongside an Acti9 iC60 RCBO or similar device to report its open/closed status back to a PLC, indicator lamp, or building management system. It clips onto the DIN rail beside the main breaker, taking up a single 9 mm pitch, and signals the circuit state without carrying the load current itself. Rated for 6 A at 24 V DC and 3 A at 415 V AC (50 Hz), it handles the typical control-circuit voltages found in industrial panels. The contact ratings follow the EN/IEC 60947-5-1 standard for control-circuit devices, so the switching capacity is verified for inductive and resistive loads in that class.
Mounting and wiring in the panel
Clip-on mounting to standard DIN rail — no tools needed to snap it in place. At 9 mm wide, one module width, it fits tight panel layouts where every millimeter counts. The screw-clamp terminals at the bottom accept one rigid cable up to 4 mm² or two 1.5 mm² conductors; strip 6 mm and torque to 0.6 N·m. The white housing stays legible for panel labeling even in dim lighting.