Installation method: standard 35mm DIN rail mounting, conforming to DIN EN50022.10, width (12.5mm module), conforming to DIN43880. Two modes connection: direct connection, you can select two connection modes. Standard S-type configuration wiring, you can select U-type wiring. Model specification: DTM125 S. Voltage specification: 3x220V/380V 50Hz, current specification: 3x20 (80) A (reference current, maximum current). LED indicates: The two-color LED indicates the current status (green) and the energy pulse signal (red). Standard configuration : standard configuration for pulse output passivity (polarity), selection of remote pulse output passivity (non-polarity) and easy contact with various AMR systems according to IEC 62053-31 and DIN 43864 standards. < p>Feature: The DTM125S three-phase electronic power meter is a new generation of smart meters featuring large integrated circuits, advanced digital technology and SMT technology. The technical performance of the product fully complies with the requirements of the active watt-hour power meter of class 1 of the international standard IEC 62053-21. Digital display with standard configuration 5 + 1 (9999999.1KWh). AC rotation direction measurement has functional consumption. It is regardless of load current direction. It corresponds to IEC 62053-21 standard. Specifications: Model: DTM125S Accuracy: Level 1 Voltage specification: 3x220V/380V 50Hz Current specification: 3x20 (80) A (reference current, maximum current ) Insulation power: AC voltage 4KV, 1 minute, pulse voltage 1.2/50us, 6KV Display mode: digital display < p>Installation Mode: Rail Mount (35mm) Package List: 1 * Electricity Meter