Siemens Q3030NC 30 Amp Plug-In Circuit Breaker 10 KA 120 VACSiemens space saving, plug in circuit breakers are intended for use in Siemens EQ, Siemens Ultimate, ITE, and Gould load centers and meter combinations that are rated to accept type QT breakers. Check wiring diagram to confirm. To ensure the warranty on a Siemens panel is not voided, the use of Siemens breakers is required. The duplex breakers provide two single pole breakers in the space typically required for only one standard breaker. These duplex,