Siemens QF220A GFCI Miniature Circuit Breaker

This is a Class A GFCI device, which means it provides ground fault protection with a 5mA trip sensitivity.

A Class A 5mA GFCI is required by the NEC for protecting personnel in wet or damp locations, such as kitchens, bathrooms, basements, swimming pools, spas, and outdoor receptacles.

The breaker is equipped with a pigtail neutral. This white wire must be directly connected to the neutral bus bar in the panel for the ground fault protection circuitry to operate correctly.

Yes, a 2-pole GFCI can protect a multi-wire branch circuit (MWBC) that shares a single neutral wire. Both ungrounded hot conductors connect to the load terminals on the breaker, and the shared load neutral connects to the neutral load terminal on the breaker. The breaker's pigtail neutral then lands on the panel neutral bar.

No, this breaker is specifically UL listed for use only in Siemens load centers, including the EQ, ES, PL, and Ultimate series. Installing it in a non-approved panel violates its listing.

Yes, the QF220A directly replaces the discontinued QF220. Both are 2-pole, 20-amp GFCI breakers designed for the same plug-on load centers.

Yes, the QF220A has been superseded by the Q220GF (often cataloged as QF220GF) in the latest Siemens catalog. The newer model offers the same electrical ratings and physical footprint.

Yes, recent versions of this Siemens GFCI include a self-test feature to comply with updated UL 943 standards, requiring the device to automatically verify its internal protection circuitry and lock out if compromised.