![Brand new type QP breaker can't replace 20-year-old QP breaker for to a missing notch. What gives? : r/askanelectrician Brand new type QP breaker can't replace 20-year-old QP breaker for to a missing notch. What gives? : r/askanelectrician](https://preview.redd.it/ev7k8lmuaz831.jpg?width=640&crop=smart&auto=webp&s=d2d580f5530ce00a36ae1afe2934f38195fd7ece)
Brand new type QP breaker can't replace 20-year-old QP breaker for to a missing notch. What gives? : r/askanelectrician
![Siemens Q21550CT2 15-Amp Double Pole/50-Amp Double Pole 10-Kaic Circuit Breaker - Ground Fault Circuit Interrupters - Amazon.com Siemens Q21550CT2 15-Amp Double Pole/50-Amp Double Pole 10-Kaic Circuit Breaker - Ground Fault Circuit Interrupters - Amazon.com](https://m.media-amazon.com/images/I/81w+aknsAsL._AC_UF894,1000_QL80_.jpg)
Siemens Q21550CT2 15-Amp Double Pole/50-Amp Double Pole 10-Kaic Circuit Breaker - Ground Fault Circuit Interrupters - Amazon.com
![Siemens Q2020 Two 20-Amp Single Pole 120-Volt Circuit Breakers, for use only where Type QT breakers are allowed - Siemens Type Qp - Amazon.com Siemens Q2020 Two 20-Amp Single Pole 120-Volt Circuit Breakers, for use only where Type QT breakers are allowed - Siemens Type Qp - Amazon.com](https://m.media-amazon.com/images/I/51O30JV2WcL.jpg)
Siemens Q2020 Two 20-Amp Single Pole 120-Volt Circuit Breakers, for use only where Type QT breakers are allowed - Siemens Type Qp - Amazon.com
![Siemens QT 15-amp/15-amp 1-Pole Tandem Circuit Breaker in the Circuit Breakers department at Lowes.com Siemens QT 15-amp/15-amp 1-Pole Tandem Circuit Breaker in the Circuit Breakers department at Lowes.com](https://mobileimages.lowes.com/productimages/7875ae08-83b9-439b-b64b-7fe3f985fb86/00520001.jpg)
Siemens QT 15-amp/15-amp 1-Pole Tandem Circuit Breaker in the Circuit Breakers department at Lowes.com
![Siemens QT 20-amp/50-amp 4-Pole Quad Circuit Breaker in the Circuit Breakers department at Lowes.com Siemens QT 20-amp/50-amp 4-Pole Quad Circuit Breaker in the Circuit Breakers department at Lowes.com](https://mobileimages.lowes.com/productimages/56ea7bea-630c-499c-ba4c-e2d7b4005b9c/47769606.jpg)
Siemens QT 20-amp/50-amp 4-Pole Quad Circuit Breaker in the Circuit Breakers department at Lowes.com
![Siemens Triplex Two Outer 15 Amp Single-Pole and One Inner 20 Amp Double-Pole-Circuit Breaker Q21520CT - The Home Depot Siemens Triplex Two Outer 15 Amp Single-Pole and One Inner 20 Amp Double-Pole-Circuit Breaker Q21520CT - The Home Depot](https://images.thdstatic.com/productImages/5581038c-d9ee-4168-83cc-1aaf4e7f2762/svn/siemens-circuit-breakers-q320-64_300.jpg)
Siemens Triplex Two Outer 15 Amp Single-Pole and One Inner 20 Amp Double-Pole-Circuit Breaker Q21520CT - The Home Depot
![Siemens QT 30-amp/15-amp 1-Pole Tandem Circuit Breaker in the Circuit Breakers department at Lowes.com Siemens QT 30-amp/15-amp 1-Pole Tandem Circuit Breaker in the Circuit Breakers department at Lowes.com](https://mobileimages.lowes.com/productimages/4e2bc7f3-b0ef-409d-a02b-b83ff94a7ade/48397606.jpg?size=pdhism)