Ketotek AC 80-300V250-450V 0-100A Din Rail LED Voltmeter Ammeter Active Power Factor Energy meter Voltage Volt Current Multi-function AC 80-300V 100A &AC 250-450V 100A LED display Note: when chose AC 250-450V, it is used in 2 wires of three phase, please don't use it in single phase. Accuracy: 1%2 words AC voltage: AC 80.0 - 300.0 V or AC 250.0 - 450.0 V AC current: AC 0.0 - 100.0A (accuracy: 0.01A) Active power: 0.0 30000 W or 0.0 45000 W Electric energy: 0.000 - 99999 kwh Electric energy of cumulative time: 0.00 - 999.59h Power factor: 1.000 - 0.000 Speed: 2 times per second Size: 54 x 80 x 64 mm Installation: Din-Rail D52-2047 Display mode: V: AC voltage and power factor A: AC current and electric energy of cumulative time W: Active power and electric energy Application Method: 1) Connect the measuring voltage to terminals 1 and 2. 2) Meter to internal current transformer: Place the wire through the hole in any direction. 3) Meter to external current transformer: Place the wire through the hole in the meter, and connect the two wires of the secondary transformer to terminals 3 and 4. 4) When powered on, the meter will display the AC voltage (V), AC current (A) and active power (W) with the correlative LEDs lighting up. 5) When preing the SAM CK button (right side of meter), the meter will change to display the power factor (cos), electric energy of cumulative time (h), and electric energy (kwh) with the correlative LEDs lighting up. 6) When preing the SAM CK button again, the meter will display the AC voltage, AC current and active power. 7) When powered off, the meter can save the value of electric energy and electric energy of cumulative time, and go on cumulating data when the meter is powered on again. When the meter is displaying electric energy, you can pre down SAM CK button to reset the electric energy and electric energy of cumulative time to zero. The meter can only use to measure 50/60 HZ AC city electricity. It will be destroyed when used to measure square waves, output of inverter, or non-standard sine waves. When chose AC 250-450V, it is used in 2 wires of three phase, please don't use it in single phase. 1 x Din Rail AC meter Succefull cases from our Buyers AC 40.0-300.0V 100A LCD display AC voltage, AC current, active power, power factor, frequence and electric energy display at the same time. The meter have a colorful, full-view, high definition LCD to display Technical Indicators 1. Accuracy: 1%2 words 2. Range: AC voltage: AC 40.0-300.0V AC Current: AC 0-100.0A, the current resolution is 0.01A. Frequence: 45.0Hz-65.0Hz Power Facter: 0.00- 1.00PF Electric Power: 0-450000W, resolution is 0.1W when 0-9999.9W, the rest is 1W. Electric Energy: 0-9999kwh, resolution is 0.01kwh when 0-999 99kwh, 0.1kwh when 1000-99999 .9kwh, 1kwh when larger than 999.9kwh 3. Speed: 2 times per second 4. Size: 54x80x64 5. Installation: Din-Rail Wire Connection Package Content 1 x din rail voltmeter ammeter