Square D QO240GFI GFCI Miniature Circuit Breaker

No. QO and Homeline breakers have different mounting profiles and bus connections. The QO240GFI is strictly designed for use in QO load centers, NQ panelboards, and NQOD panelboards.

This breaker provides Class A ground fault protection for personnel. It is designed to trip and interrupt the circuit when it detects a ground fault current of 5 to 6 milliamperes.

The attached white pigtail wire must be landed directly on the neutral bus bar in the load center or panelboard. This connection provides the 120V reference required to power the internal GFCI electronics.

Yes. For straight 240V loads that do not use a neutral wire, such as a well pump, baseboard heater, or spa, simply land the two hot wires on the breaker terminals. The breaker will still provide ground fault protection, provided its white pigtail is connected to the panel neutral bus.

Yes. Square D recommends not connecting this breaker to more than 250 feet of load conductor for a total one-way run. Exceeding this length increases capacitive leakage, which can lead to nuisance tripping.

Yes. As a UL 489 listed circuit breaker, it carries an inherent HACR (Heating, Air Conditioning, and Refrigeration) rating, making it fully suitable for use with group motor applications like air conditioning condensers and heat pumps.

These part numbers represent the exact same circuit breaker. The C or CP suffix simply indicates that the breaker is sold in retail clamshell packaging rather than standard bulk distributor packaging.