- Electrical Contractor, Electrical Consultant, Electrical Engineer
I think you should get kick back on the "no-dead-front" rational of this. A fused safety switch is manufactured without a dead front, most of the time. And has been, and still is, a UL listed assembly all the way back to the beginning of the 1900s. The fuses are intended to be serviceable by their very nature.Dose a fusible disconnect switch requires to be locked? as it has no dead front and has live parts. I say yes but I am getting kick back from the Solar company's
A couple years ago, I had a client that was selling his large single family home, built in 1949, that had a jurisdiction based "truth-in-sale-of-housing" inspection that judged all of the fused safety switches as hazardous for lack of dead front, and that the 30 - odd switches in this sprawling, well-wired and well-maintained electrical assembly had to be repaired or replaced. The Electrical AHJ ruled that the fused safety switches, un-altered and as manufactured, were installed to the NEC of their time of installation, and were unremarkable, needing no attention. The jurisdiction housing inspectors were realized to be creating their own new code and they subsequently stopped condemning fused safety switches.