Item Type: Single Phase Meter Product Material: Pure copper + plastic Voltage: 230V AC Current: 5 (80) A Power: 800imp/kWh 50Hz Insulation Performance: AC voltage 4kV for 1 minute, 1.2/50μs waveform pulse voltage 6kV The DDS1891 single-phase electronic DIN rail active energy meter is a new type of single-phase two-wire active energy meter. It uses microelectronics technology, large-scale integrated circuits, advanced digital technology, and SMT technology. It features independent intellectual property rights and a compact design. The meter fully complies with the technical requirements for Class 1 single-phase active energy meters as specified in the international standard IEC62053-21. It accurately and directly measures active power consumption from a single-phase AC grid at 50Hz or 60Hz, and displays total power consumption via a stepper motor type pulse register. It offers high reliability, small size, light weight, attractive appearance, and easy installation. Functions and Features: 1. 35mm standard DIN rail installation, compliant with DIN EN50022. 2. Unipolar width (modulus 18mm), compliant with DIN43880. 3. Standard configuration includes a 5+1 digit display (99999.1 kWh) via stepper motor type pulse register. 4. Standard passive pulse output (polarity); long-distance passive pulse output (polarity) available. Compatible with various AMR systems, compliant with IEC 62053-31 and DIN 43864. 5. Pulse indicator flashes when meter begins measurement. 6. One-way measurement of single-phase two-wire active power, independent of load current direction. Compliant with IEC 62053-21. 7. Standard S-type connection; U-type connection available as option. 8. Extended terminal cover for enhanced safety. Status indicator (green) and energy pulse signal (red). 9. Measures AC active power consumption regardless of load current direction. Compliant with IEC 62053-21. 10. Direct connection operation with two wiring options. Standard configuration is S-type, with U-type available. 11. Extended terminal cover ensures safe operation. Dimensions: Approx. 88mm x 63mm x 75mm (3.5in x 2.5in x 3in)