Ihold = Hold Current:maximum current device will sustain for 4 hours without tripping in 25°C still air.
ItRip = Trip Current:minimum current at which the device will trip in 25°C still air. V-max = Maximum voltage device can withstand without damage at rated current(I-max). I-max = Maximum fault current device can withstand without damage at rated voltage(V-max).
Ihold = Hold Current:maximum current device will sustain for 4 hours without tripping in 25°C still air.
ItRip = Trip Current:minimum current at which the device will trip in 25°C still air. V-max = Maximum voltage device can withstand without damage at rated current(I-max). I-max = Maximum fault current device can withstand without damage at rated voltage(V-max).