ABB / General Electric THHQB1115AF2 AFCI Miniature Circuit Breaker

The 15A rating is the basis for selecting this breaker for the circuit's overcurrent protection. Coordinate that rating with the circuit load and conductor ampacity.

This breaker is rated 120/240VAC and has one pole for a single circuit in a single-phase system. Check both the circuit voltage and the required number of protected poles when selecting it.

The interrupting rating is 22kAIC at 120/240VAC. The available fault current at the installation point must not exceed that rating, so compare the available fault current with the breaker rating before selection.

AFCI protection detects arcing conditions that can create a fire hazard and interrupts the circuit. Select this feature when the circuit requires arc-fault protection.

No. Both the thermal and magnetic trip settings are fixed. The thermal element provides long-time response to sustained overloads, while the magnetic element provides instantaneous response to short-circuit current, so selection must suit the circuit without field trip adjustment.

It uses bolt-on mounting, which requires fastening the breaker rather than plugging it in. The outgoing circuit conductor terminates at the load-side lug.

The wire range is 14-10 AWG. Choose a conductor within that terminal range while also meeting the circuit's ampacity requirements; terminal acceptance alone does not determine conductor sizing.

The thermal trip is calibrated at 40°C, making that temperature the reference for its overload response. Consider the ambient temperature around the breaker when evaluating thermal trip behavior, because temperature affects the thermal element.