Features: _x000D_ 35mm standard DIN rail installation , complying with standard DIN EN50022. _x000D_ Ten pole width (Modulus 12.5mm), complying with standard JB/T7121-1993. _x000D_ Type S wiring (Type U). _x000D_ Seven digits display LCD, 6+1 digits display (999999.1 kWh) . _x000D_ There are a polarity port of pulse output passive closed and a nonpolarity port of pulse output passive distant . Complying with standard IEC 62053-31 and DIN 43864. _x000D_ 5 LED instructions respectively every power supply state, signal of closed energy impulse and distant energy impulse and data communication state. _x000D_ Automatic detection the direction of the flow of load current. And Instructions on individual LCD _x000D_ Single direction three components measure three phase four wire active energy consumption. It is nothing with direction of the flow of load current. Complying with standard IEC 62053-21. _x000D_ Standard configuration short terminals cover, may select extension terminals cover, in order to protect to use safety. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Model: XTM1250SA-U _x000D_ _x000D_ Accuracy: Class 1 _x000D_ Voltage: 3x220V/380V _x000D_ Current: 5(30)A,15(60)A, 20(80)A,10(40)A, 30(100)A (Optional) _x000D_ Insulation performance: AC voltage 4kv for 1 minute,1.2/50us waveform impulse voltage 6kv _x000D_ Size: as the picture _x000D_ Weight: 498g _x000D_ _x000D_ _x000D_ Package included: _x000D_ 1 x DIN-Rail Electric Meter _x000D_ 1 x Manual