Even the high-dollar interlocks can be bypassed with a screwdriver. But we swear by them just the same- sure, I'd like to think nobody is stupid enough to close the tie breaker while the two halves of the switchboard are fed from separated sources, BUT...

So, yeah, I use a lot of interlocks but bypass a lot of interlocks during non-standard evolutions, too. Their purpose is not so much to force the "expert" into a certain sequence but moreso to protect the idiot from blowing something up. I don't have any experience with this brand, but it looks like it could easily save someone the cost of an MTS [Linked Image]