•    35 mm DIN standard guideway installation which conforms to the DIN EN 50022 standard, or pre-plate installation

•    7-pole width (modulus 17.5mm), conforming to DIN 43880 standard

•    7-digit LCD display, with a standard configuration of 6 + 1 (999999.1 kWh) display units, can also be configured for 5 + 2 displays

•    The standard configuration of passive electric pulse output (with polarity) can be used to select the passive remote power pulse output (non-polarity), which can be used to join various AMR systems, and conforms to the standard of IEC 62053-31 and DIN 43864

•    6 LED indicators for phase power (yellow, green, red), electrical pulse signal (white), and COM (yellow) for RS485 communication instructions

•    The standard configuration includes check current load current trends and automatically detect load current trend direction, which is indicated by a single LED

•    Single-direction measurements of three-phase four-wire active power consumption is independent of the current direction of load current, which conforms to the IEC 62053-21 standard

•    Standard S-type connections (bottom line, top line), direct access, optional CT access and PT & CT access

•    The standard configuration of short terminal blocks can be used to select extension terminals and ensure safe operations

•    The standard configuration communication protocol meets the DL/t645-1997 standard

•    110 VAC to 280 VAC with ≤1 V resolution and ≤2 % accuracy error

•    45 Hz to 55 Hz frequency with ≤0.1 Hz resolution and ≤2 % accuracy error

•    0 A to 20 A current (for all 3 phases) with ≤0.1 A resolution and ≤2 % accuracy error

•    Measuring range is 0 kw to 4 kw (for all 3 phases) with ≤1 W resolution and ≤2 % accuracy error

•    Operating temperature 0 °C to +50 °C

•    Operating humidity 10 % to 95 % RH (non-condensing)