Hi all. I have a generator/utility main branch mounted breaker setup with a Square D QO2DTI interlock on a subpanel so as to prevent closing both the utility and generator mains together. It has been in place many years.
Both the utility main and the generator main are back-fed of course.
A friend of mine wants me to install a similar set-up for him.
I was looking through the code to make sure this was still OK and remembered reading about 100A and larger main breakers needing to be bolt-in, not stab-in. I see in 408.36(D) back-fed devices need to be "secured in place by an additional fastener...".
Does Square D make a kit or device for a QO loadcenter for back-fed branch devices?
I know there are other solutions for the utility/generator main out there and that is not my question. The QO2DTI interlock is a simple and cheap solution and is why I was looking at this. I just want to know how to comply with 408.36(D) and still use a QO loadcenter with stab-ins, if it is possible.
Thanks.
Both the utility main and the generator main are back-fed of course.
A friend of mine wants me to install a similar set-up for him.
I was looking through the code to make sure this was still OK and remembered reading about 100A and larger main breakers needing to be bolt-in, not stab-in. I see in 408.36(D) back-fed devices need to be "secured in place by an additional fastener...".
Does Square D make a kit or device for a QO loadcenter for back-fed branch devices?
I know there are other solutions for the utility/generator main out there and that is not my question. The QO2DTI interlock is a simple and cheap solution and is why I was looking at this. I just want to know how to comply with 408.36(D) and still use a QO loadcenter with stab-ins, if it is possible.
Thanks.