Description Economical LED Multifunction Meter: SELEC MFM391 Compatible for 1 phase 2 wire, 3 phase 3 wire, 3 phase 4 wire systems 11 to 300V (L-N), 19 to 519V (L-L) measurement Accuracy of ± 0.5% for voltage & current, 0.1% for Frequency, 0.01% for PF, 1% for Power, Class 1 for Active, Reactive & Apparent energy RPM and Run Hour Measuremen Brief Specifications: LED Multifunction Meter: SELEC MFM391 Display Type 7 Segment LED Display Configuration 3 Rows of 3 Digits Electrical Connection 3Ø -3W, 3Ø – 4W, 2Ø – 3W, 1Ø – 2W Features VAF meter with Power-Factor and Power, Run Hour and RPM measurement Communication Protocol NA CT Primary 1 / 5A to 10kA (Programmable for Any Value) CT Secondary 1 / 5 A (Programmable) PT Primary 100V to 500kV (Programmable for Any Value) PT Secondary 100V to 500V (Programmable for Any Value) Rated Input Current Nominal 5A AC (Min – 20mA Max – 6A) Size 96 x 96mm Supply Voltage 85 to 270V AC (45/65Hz) Mounting Type Panel Mount Certification — You may also like to review the Digital Multifunction Meters with RS485 Communication: LED Digital Multifunction Meter with RS485 Communication: SELEC MFM376-C-CE LED Digital Multifunction Meter: Selec MFM376-C-CE-Plus – intelliware LED Digital Multifunction Meter: Selec MFM376-C-D-CE-CL05-Plus – intelliware