Feature:1. With excellent longterm reliability, small size, light weight and easy installation, etc.2. Can directly and accurately measure the active power consumption of the load in a singlephase AC network with a rated frequency of 50 Hz3. Adopt microelectronics technology, and largescale integrated circuits, and adopt advanced digital technology and SMT technology.4. Direct connection operation, you can choose two types of wiring, the standard configuration is Stype wiring, and it can be Utype wiring.5. One‑way measurement of single‑phase two‑wire active power has nothing to do with the direction of the load current trend.Specification:Item Type: Single Phase Meter Rated Voltage: 230VRated Current: 10 (40) AFrequency: 50HzPulse Constant: 1000imp/kwhInsulation Performance: AC voltage 4kv for 1 minute, 1.2 / 50us waveform pulse voltage 6kvProduct Description: DDS1891 single-phase electronic DIN track active energy meter is a new type of single-phase two-wire active energy meter, which uses microelectronics technology, and introduces large-scale integrated circuits, and uses advanced digital technology and SMT technology. Its completely independent intellectual property rights and minimum size.The meter full complies with the relevant technical requirements of the class 1 single-phase active meter specified by the international standard IEC62053-21. It can accurately and directly measure the 50Hz active power consumption from the single-phase AC grid, and can display the total power consumption through the stepper motor type pulse register.It has the characteristics of good reliability, small size, light weight, beautiful appearance and convenient installation.Features: 1.35mm standard DIN rail installation, in line with standard DIN EN50022.2. Unipolar width (module 17.5mm), in line with standard DIN43880.3. Display the standard configuration 5 + 1 number (99999.1kWh) through the stepper motor type pulse register.4. Standard configuration of passive pulse output (polarity), long-distance pulse output passive (polarity) can be selected. And easily contact with various AMR systems, in line with standards IEC 62053-31 and DIN 43864.5. When the meter starts measuring, the pulse indicator flashes.6. One-way measurement of single-phase two-wire active power, independent of the direction of the load current trend. Comply with standard IEC 62053-21.7. Standard configuration S type connection, U type connection can be selected.8. Extend the terminal cover to protect the safety of use..Package List:1 x Single Phase Meter1 x User Manual