Description Description Parameter: Accuracy: Class 1; Voltage: 220V; Current: 5(80)A ; Insulation performance: AC voltage 4kv in 1 minute, 1.2/50us waveform impulse voltage 6kv; Size: 8.3 x 6.5cm / 3.27 x 2.56in Excellent performance: It has high reliability, small volume, light weight, beautiful appearance, advanced technology and 35mm DIN standard rail mounting Long service life: The electronic KWh meter has good anti-electromagnetic interference, low power consumption, high precision, high overload, high stability and anti-theft LCD Display: This energy meter can measure positive active energy in electrical energy measurement, which is clearly displayed by the LCD backlight screen. This single-phase energy meter circularly displays voltage, current, power and energy KWh Usage: This energy meter is suitable for measuring nominal frequency 50Hz or 60Hz single-phase AC active electricity, used for fixed installation indoors