Hpi type: detect faults with AC and DC components, increased Immunity to false tripping Inbuilt measurement/metering option Measurement - V,A, F, PF, KWh, KVA, KVAr, THD Metering - V, A, F, KWh RS 485 port for remote reading Di-electric test button inbuilt Ergonomic test button Scroll button for easy readings RLCD display on front facia For mounting on the right-hand side of 1.5 module per pole DX3 MCBs Easy & fast association mechanism 70 sq mm terminals