Siemens QF120A 20 Amp 1 Pole GFCI Circuit Breaker

20 A Single-Pole QF GFCI Circuit Breaker, 120 V

SKU: QF120  |  MPN: QF120A  |  Brand: Siemens

• Provides Class A ground-fault protection with 5 mA trip sensitivity for enhanced safety.
• Plug-in mounting, designed for Siemens Q / QP family load centers.
• Thermal-magnetic trip function protects against overloads and short circuits.
• UL Listed and CSA Certified; Type QPF2 GFCI breaker with 10 kA interrupt rating.
• Supports copper or aluminum wiring, #14-10 AWG.

Technical Specifications

Overview

The Siemens QF120A is a 20-amp, single-pole GFCI breaker designed to safeguard 120-volt circuits in residential and light commercial environments. Built for Siemens Q/ QP load centers, it combines ground-fault protection with thermal and magnetic trip functions for reliable circuit safety. Suitable for kitchens, bathrooms, outdoor receptacles, and any location where GFCI protection is required.

What’s Included

• Siemens QF120A GFCI breaker unit
• Installation documentation

Compatibility & Replacements

Compatible with Siemens load centers in Q, QP, EQ, EQL, SEQ, PL, and ES series. Replaces earlier 20 A GFCI breakers in the Siemens QF line.

Installation & Notes

• Install only in approved Siemens Q/ QP load centers.
• Ensure panel supports 20 A, 120 V single-pole breakers.
• Use appropriate wire (#14-10 AWG) and torque terminals to manufacturer specifications.
• Test breaker monthly using the GFCI test button to confirm protection is active.
• Installation should be completed by a qualified electrician and comply with local electrical codes.

Shipping & Returns

Ships from the USA. 30-day returns; customer pays return shipping. Please see our Shipping & Returns policy for details.