ther factors, but is often less than about 2 A, e.g. about 1 A. To be functional under normal use conditions, however, it is necessary that the device not trip when exposed to a similar specified current at 60??? C., i.e. that it have a specified hold current IH. Thus, for example, to be functional, a device might require a hold current IH at 60??? C. of at least 1 A and a trip current IT at 80???