cannot find a CTL version of this breaker

neo565

I need to put in a subpanel for a motor that requires 20 amps. It requires fuse protection from a class g or cc fuse. The label says that it must not be used on a breaker because it "does not provide adequate protection" (as stated by the label). The only non-european fuse holder that can fit in a breaker panel is the square d qf. But this breaker was only manufactured in tandem and is not ctl. It fits in the square d qo panels. What if I buy a 4 circuit panel that can accept 4 tandems and stick the non-ctl breaker in a slot that can accept a tandem, but does not say anything about a non-ctl one.Can I put in this breaker, or should I find a pre-1965 panel?

joecaption

You need to go back and add your location to your profile.

brric

Install the subpanel with breakers, install a fused disconnect to protect the motor.

neo565

A class G or CC disconnect??? I did not know that they existed.

neo565

Just found out from the local inspector. It is ok to use a non ctl breaker in a panel as long as all the slots are made for tandems. This type of installation is very common here. There is also a ctl version, sort of acts like a type S fuse, but to prevent you from sticking too big a breaker in a panel. Does not work anymore, but the shape and size is so similar to the QO ctl that it will not allow the breaker to fit in a non tandem slot.