Energy meter

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### Posmith Electric Single Phase Electronic Energy Meter

This is a compact, digital DIN-rail mounted energy meter designed for accurate sub-metering, energy monitoring, and tracking consumption in single-phase alternating current (AC) electrical systems. It is ideal for residential units, commercial offices, solar system monitoring, or industrial distribution panels.

 * **Brand:** Posmith Electric

 * **Model:** DDS667

 * **Type:** 1-Phase, 2-Wire Electronic Energy Meter

### Technical Specifications & Features

 * **Voltage Rating:** 220\text{V} – Standard operating voltage for single-phase utility networks.

 * **Current Capacity:** 5(80)\text{A} – Features a base current rating of 5\text{A} and can accurately measure up to a maximum continuous current of 80\text{A}.

 * **Frequency:** 50\text{Hz} – Standard electrical grid operational frequency.

 * **Pulse Constant:** 1600\text{Imp/kWh} – The red indicator LED flashes 1600 times for every kilowatt-hour of electricity consumed, allowing for manual verification or optical calibration.

 * **Digital LCD Display:** Equipped with a clear, easy-to-read electronic screen to display real-time energy usage statistics.

 * **User Interface:** Features a dedicated red function button on the front panel to toggle or reset data views on the screen.

 * **Installation Layout:**

   * Designed for standard DIN-rail mounting.

   * Clear terminal blocks on top for Live (\text{L}) and Neutral (\text{N}) **Input** (\text{IN}).

   * Dedicated terminal blocks at the bottom for Live (\text{L}) and Neutral (\text{N}) **Output** (\text{OUT}), along with a marked "Pulse" connection area.