Reply to "Circuit breaker to put in-line with my PW ZW"

There is a schematic floating around for the PH-180, not sure if it is "official" or not, but there appear to be errors in the scaling of the current transformer circuit, it can't possibly work as drawn.  The drawing does show two trip functions, an "instantaneous" function with a delay of about 7.5 milliseconds and a second function with a time constant of about 2.6 seconds. Due to the scaling issues noted above I can't accurately calculate exact levels and trip times, but it does appear to have both instantaneous and time-delay functions.