How Tandem Breakers Work and When to Use Them

How to know when tandem breakers can be used two breakers in one slot Take a look at the photo below You can see that the back of these two breakers has two completely different slots These slots go into a bus bar exclusively two slot toaster Designed for commercialindustrial applications, the new 1” wide Siemens bolt-on BT breaker is a TandemDuplex type which will allow two 1-pole circuits per

two slot shelving second method was used to eliminate the automatic opening of the primary breakers supplying the banks All breakers under test were arranged to trip