Siemens QF220AH GFCI Miniature Circuit Breaker

This breaker is designed for use in Siemens EQ, EQL, SEQ, EQG, PL, and ES Series load centers. It requires two full 1-inch spaces on the panel bus.

The H in the QF220AH catalog number indicates a high interrupting rating. The QF220AH is rated for 22kAIC at 240V, while the standard QF220A is rated for 10kAIC.

This is a Class A GFCI device designed for personnel protection. It will trip when the ground fault sensor detects a current imbalance of 4 to 6 milliamps between the load conductors.

The QF220AH uses a pigtail neutral. You must connect the attached white pigtail wire to the neutral bus bar in your panel. The neutral wire from your branch circuit connects directly to the neutral lug on the breaker.

The QF series provides Class A personnel protection with a 5mA trip threshold. If you need 30mA equipment protection, you would need a Siemens QE series breaker instead.

Yes. Because this is a 2-pole GFCI breaker, it monitors both hot legs and the neutral. It can successfully provide ground fault protection for two 120V circuits sharing a single neutral wire without nuisance tripping.

Yes. For a strictly 240V load like a well pump or heater, connect the two hot wires to the breaker lugs. You must still connect the breaker's white pigtail to the panel neutral bar to power the internal GFCI circuitry, but the load neutral lug on the breaker will remain empty.

Yes. To comply with UL 943 requirements, this breaker features an automatic self-test function that continuously monitors the GFCI circuitry. If it detects a compromised component, the breaker will trip and lock out to ensure safety.