Accuracy Cl1.0, Cl0.5, Pulse output ? for effective WAGES tracking on EMS systems, 3P4W & 3P3W wiring options. Characteristics : True RMS, CT PT operated, Compact 96 x 96 mm size, Low PT, CT burden, Accuracy class 1.0 IEC 61036 & Class 0.5, Simultaneous sampling of Volts & Amps, Accurate on distorted waveforms, Sealed dust-proof construction, Quick and easy installation, Reverse LED for trouble shooting, Tamper proof cover option, 3 phase 4 wire (& Single phase).