Features Compact Design for Easy Installation ghtweight and small, the meter offers a sleek appearance and straightforward setup, ensuring efficient use of space in your electrical system Accurate Power Consumption Measurement rectly measures 50Hz or 60Hz active power consumption, providing readings of total energy usage via a stepper motor pulse register Features: 1、With its completely independent intellectual property rights and minimum size, it has excellent long‑term reliability, small size, light weight, appearance, and easy installation. 2、It can directly and accurately measure the 50Hz or 60Hz active power consumption from the single‑phase ac grid, and can display the total power consumption through the stepper motor type pulse register. 3、The meter fully complies with the relevant technical requirements of the class 1 single‑phase active meter specified by the international standard IEC62053‑21. 4、DDS1891 single‑phase electronic DIN track active energy meter is a new type of single‑phase two‑wire active energy meter. 5、Adopt microelectronics technology, and import large‑scale integrated circuits, and adopt advanced digital technology and SMT technology. Specification: Condition: 100% Item Type: Din Rail Meter Material: Pure Copper + Plastic Color: As Pictures Shown Voltage: 230V Current: 5 (80) A Power: 1600imp/kwh 50Hz Functions and Features: 1.35mm/1.4in standard DIN rail installation, in line with standard DIN EN50022. 2.Four widths (modulus 12.5mm/0.5in), in line with standard DIN43880. 3.Standard configuration 5 + 1 LCD display (99999.1kWh). 4.Standard configuration of passive pulse output (polarity), and optional remote pulse output passive (non-polarity). And easily with various AMR systems, in line with standards IEC 62053-21 and DIN43864. 5.Two LEDs indicate power status (green) and energy pulse signal (red). 6.One-way measurement of single-phase two-wire active energy consumption. The direction of the load current is irrelevant and conforms to the standard IEC62053-21. 7.For direct connection , two types of wiring can be selected. The standard configuration is S-type wiring, U-type wiring is optional. 8.Expansion terminal cove Package List 1 x Din Rail Meter 1 x Instruction