The GFPEs, were supposed to be manufactured for Heat tape/trace cable but as far as I know they never produced any in the receptacle form.
I did find a breaker of that type its made by SQ. D but that is the only one I have ever found.
According to our inspectors, we can use a standard GFCI for that circuit, but the 30 ma trip sounded nice because of nuisance tripping.
