The current meter display range for ETM trip units is limited between 30% of the rated current (In) and up to 10 times the rated current.
For ETM trip unit products, the minimum measurable current is 0.3 × In.
Depending on operating conditions and the application environment, values lower than 0.3 × In may occasionally appear on the display. However, readings below this threshold are outside the guaranteed measurement range and their accuracy cannot be guaranteed.