Tandem Circuit Breaker, Stacked style, or Piggyback style.

Piggyback style: 

https://www.sselectricalsupply.com/products/square-d-qot2020-twin-tandem-piggy-back-20a-20a-circuit-breaker-metal-hook-1

Or Stacked style

https://www.sasanelectricals.com/sqdqot20asit.html?gclid=Cj0KCQjwmICoBhDxARIsABXkXlJ_JMWjcivl0Jz6BvwFqXRxb_ud2S2LR2rqf7SEYPHNWpVOU8bXeaIaAjxSEALw_wcB

Normal side-by-side. 

https://www.homedepot.com/s/tandem%20circuit%20breaker%20stacked?NCNI-5

 

所有跟帖： 

• 多谢，前两种很像，home depot的似乎不像 -goggle- ♂ (233 bytes) () 09/12/2023 postreply 21:36:12

• 说不定side by side style也可以用，不一定非要original stack style的吧。 -柠檬椰子汁- ♂ (0 bytes) () 09/12/2023 postreply 21:37:08

• 嗯，明天去拔出来看看大小，side by side style可用最好（home depot现货最好） -goggle- ♂ (33 bytes) () 09/12/2023 postreply 21:41:55