Eaton / Cutler-Hammer CH120CAFA AFCI Miniature Circuit Breaker

It is designed exclusively for Eaton and Cutler-Hammer Type CH load centers. It requires a 3/4-inch space on the bus bar.

The coiled white pigtail wire must be connected directly to the neutral bus bar in the panel. This connection powers the internal electronics required for arc fault detection.

The red LED flashes a specific number of times to indicate the cause of the last trip, such as a series arc, parallel arc, or overvoltage. This helps troubleshoot the circuit after a fault.

Eaton has stated that a constantly illuminated red LED is a cosmetic firmware variation. It does not indicate a safety hazard and does not affect the breaker's ability to protect against arc faults.

Yes, the CH120CAFA is the direct replacement for the older CH120CAF model. It provides updated combination arc fault protection for 20-amp circuits.

While a standard breaker only trips during overloads or short circuits, a Combination AFCI like the CH120CAFA also detects dangerous series and parallel arcing faults to help prevent electrical fires.

No, single-pole AFCI breakers with a pigtail neutral cannot be used on multi-wire branch circuits with a shared neutral. A dedicated neutral wire is required to prevent nuisance tripping.

No, this specific model provides Combination Arc Fault (CAFCI) protection only. If the circuit requires both arc fault and ground fault protection, a dual-function breaker is necessary.

Once installed and energized, press the white TEST button on the front of the breaker. The breaker should trip immediately, confirming that the arc fault detection circuitry is fully operational.