I have been using two ZW-L's to operate my layout for three years. Despite my best efforts I manage to activate their circuit protection at least once every time I use the layout by running an engine into an open turnout (two rail layout.) The output protection of a ZW-L is equivalent to the PSX1-AC. The only reason to include them with a ZW-L would be to set the protection level at less than 10A. I have a number of the PSX boards on my layout, mostly the auto reverser boards, they are all excellent products.
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