M50S-01 Three Phase DC Meter with AMI capabilities M52S-01 Three Phase CT Meter with Full AMI capabilities M53Z Three Phase DC type Ultra Smart Modular Energy Meter M54Z Three Phase CT, CT/VT Operated Ultra Smart Modular Energy Meter M56Z 3 Phase Ultra Smart, Modular Energy Meter (DC Type) M57Z 3 Phase Ultra Smart, Modular Energy Meter (CT, CT/VT Type)
