Rated 120V (20A) AIR (10 kA). These 3/4-Inch breaker snap on to the QO type bussing. Square D TYPE QO 1 POLE 15A 120/240 VAC circuit breaker (Used and... QD 3/4 IN Plug-In 1-Pole circuit breaker. HACR rated, UL listed and classified QT Circuit Breakers at Circuit Breakers Circuit Breaker Replacement Chart At Zara Baillieu Blog 20 Amp Single Pole Breakers QD 3/4 IN Plug-In 1-Pole circuit breaker Tusk Belt Removal Tool Compatible with Polaris RZR XP/XP4 Turbo EPS 2016-2021/RZR Pro XP/XP4 2021-2025/RZR Pro R/Pro R 4 2022-2025. Brand: TUSK From the Manufacturer Siemens QO replacement breakers are UL listed for use in Square D QO brand load centers and are ideal for replacement of existing breakers or if expansion circuits are required.