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?