This Single Phase DIN Rail PLC (Power Line Communication) split meter is designed for reliable measurement and billing in domestic and commercial applications where the voltage is 80Amps or less with only 1 phase. Power Line communication means that the UIU (user Interface Unit / Keypad) can be plugged into any wall socket and communicates with the meter using the existing power lines. No wire needs to be installed between the Prepaid Meter and the UIU. It was designed to fit inside a DB (Distribution Board) where a DIN Rail is mounted. It can provide prepaid or post-paid management functions. This meter can also be used as a smart meter in conjunction with a Data Concentrator and Data Collector. It is supplied with a UIU (User Interface Unit / Keypad)