Features: 35mm standard DIN- rail installation, complying with standard DIN EN50022 Bipolar width, complying with standard DIN43880 Standard configuration 5+1 digits display (99999.1kWh)LCD May select function(display voltage, current, power, frequency, power factor) Single direction measurement single phase two wire active energy consumption. It is nothing with direction of the flow of load current. Complying with standard GB/T17245.321-2008 Embedded terminal cover, nice, safe to protect electricity Specifications: Model: XTM35SC Accuracy: Class 1 Voltage: 220V Current: 5(80)A Insulation performance: AC voltage 4kv for 1 minute,1.2/50us waveform impulse voltage 6kv Size: 8.3 x 6.5cm / 3.27 x 2.56in Weight: 136g Package included: 1 x DIN-Rail Electric Meter 1 x Manual 4 x Accessories