... &PT.2.3 Front board three fixed hole installation, terminal block is make of bakelite material, which is moisture-resistant, ... off.2.6 ABS meter casing(polycarbonate optional) and bakelite terminal block. It is of self-extinguishing, moisture-resistant, high ... fault detection function can be added. Detection of open terminal cover3. Technical parameters ModelRated current(A)Voltage (V)Accuracy ...