Universal power meter DF977 7 DISPLAY In 96x96 (mm) DIN case and 6 modules for DIN rail Reading: - V-LL / LN, A, kW, kVAr, kVA, PF, kWh, kVArh, A neutro, max Demand, etc. - 7 Display 4 digit led 10mm red hight efficiency. - 2 setpoint or energy pulse relays RS232 o RS422/485